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You searched for: Journal Tree genetics & genomes Remove constraint Journal: Tree genetics & genomes Journal name Tree genetics & genomes Remove constraint Journal name: Tree genetics & genomes Subject apples Remove constraint Subject: apples Text availability Citation in PubAg Remove constraint Text availability: Citation in PubAg
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1. Advanced genebank management of genetic resources of European wild apple, Malus sylvestris, using genome-wide SNP array data

Author:
Joukje Buiteveld; Herma JJ Koehorst-van Putten; Linda Kodde; Ivo Laros; Giorgio Tumino; Nicholas P. Howard; Eric van de Weg; Marinus J.M. Smulders
Source:
Tree genetics & genomes 2021 v.17 no.4 pp. 32
ISSN:
1614-2942
Subject:
Malus sylvestris; alleles; apples; effective population size; gene banks; genetic relationships; genotyping; haplotypes; introgression; plant genetics; pollination; seed orchards; single nucleotide polymorphism; single nucleotide polymorphism arrays; Netherlands
Abstract:
... The Netherlands’ field genebank collection of European wild apple (Malus sylvestris), consisting of 115 accessions, was studied in order to determine whether duplicates and mistakes had been introduced, and to develop a strategy to optimize the planting design of the collection as a seed orchard. We used the apple 20K Infinium single nucleotide polymorphism (SNP) array, developed in M. domestica, ...
DOI:
10.1007/s11295-021-01513-y

2. Correction of database SNP accession numbers misassigned to SNPs of the 8K IRSC apple SNP array

Author:
Daniel A. Edge-Garza; Miguel Villamil-Castro; Dorrie Main; Craig Hardner
Source:
Tree genetics & genomes 2021 v.17 no.2 pp. 17
ISSN:
1614-2942
Subject:
National Center for Biotechnology Information; Rosaceae; apples; data collection; databases; genome; loci; plant genetics; single nucleotide polymorphism arrays
Abstract:
... Accurate SNP locus identifiers are essential for the correct matching and aggregation of multiple historical datasets. The National Center for Biotechnology Information (NCBI) issued unique “submitted SNP identification” numbers (ssIDs) for every published SNP submitted to its database. Discrepant ssID information was discovered for 78 SNPs for the 8K IRSC apple SNP array while attempting to colla ...
DOI:
10.1007/s11295-021-01500-3

3. Genome-wide association study for apple flesh browning: detection, validation, and physiological roles of QTLs

Author:
Miyuki Kunihisa; Takeshi Hayashi; Yoshimichi Hatsuyama; Tomoko Fukasawa-Akada; Hirohide Uenishi; Toshimi Matsumoto; Tomoyuki Kon; Satoshi Kasai; Tsuyoshi Kudo; Hidemi Oshino; Toshiya Yamamoto; Junko Tazawa
Source:
Tree genetics & genomes 2021 v.17 no.1 pp. 11
ISSN:
1614-2942
Subject:
apples; cultivars; genome-wide association study; germplasm conservation; homozygosity; juices; oxidoreductases; phenotypic variation; plant genetics; polyphenols; quantitative traits; variance
Abstract:
... Flesh browning after cutting or bruising reduces the commercial value of apple fruit. Here, we investigated the genetic factors that regulate flesh browning (at 15 min and 24 h after grating) by a genome-wide association study (GWAS) of 24 sib-families (468 genotypes). Three quantitative trait loci (QTLs) were detected on chr5, chr16, and chr17. Their effects were estimated in a germplasm collecti ...
DOI:
10.1007/s11295-021-01492-0

4. Plastome characterization and comparative analyses of wild crabapples (Malus baccata and M. toringo): insights into infraspecific plastome variation and phylogenetic relationships

Author:
Myong-Suk Cho; Jin Hyeong Kim; Takayuki Yamada; Masayuki Maki; Seung-Chul Kim
Source:
Tree genetics & genomes 2021 v.17 no.5 pp. 41
ISSN:
1614-2942
Subject:
Japan; Malus baccata; Malus toringo; apples; chloroplast genome; chloroplasts; conspecificity; genes; genomics; geographical distribution; horticulture; mutation; phylogeny; plant genetics; sympatry; China; Korean Peninsula
Abstract:
... Malus baccata (L.) Borkh. and Malus toringo (Siebold) Siebold ex de Vriese of the genus Malus Mill. (Rosaceae) are wild crabapples occurring in temperate East Asia. Despite their horticultural importance as ornamental trees and the natural resources in apple breeding, their phylogenetic relationships have never been determined clearly owing to lack of resolution in previous studies. We characteriz ...
DOI:
10.1007/s11295-021-01520-z

5. QTL analysis of crown gall disease resistance in apple: first plant R gene candidates effective against Rhizobium rhizogenes (Ti)

Author:
Shigeki Moriya; Hiroshi Iwanami; Takashi Haji; Kazuma Okada; Taku Shimizu; Koichi Suzaki; Naoko Kitamoto; Yuichi Katayose; Jianzhong Wu; Toshiya Yamamoto; Kazuyuki Abe
Source:
Tree genetics & genomes 2021 v.17 no.3 pp. 25
ISSN:
1614-2942
Subject:
Agrobacterium radiobacter; Japan; Rhizobium rhizogenes; apples; bacterial artificial chromosomes; computer simulation; crown galls; disease resistance; peaches; plant genetics; prediction; quantitative traits; resistance genes
Abstract:
... In apple (Malus spp.), crown gall disease, caused by the bacterial pathogens Rhizobium radiobacter (Ti) and R. rhizogenes (Ti), can be severe. To control the disease, breeding of apple rootstocks that exhibit crown gall resistance is a promising approach. In this study, we used a full-sib F₁ population derived from a ‘JM7’ (susceptible) × Sanashi 63 (resistant) cross to identify quantitative trait ...
DOI:
10.1007/s11295-021-01508-9

6. An accumulation of genetic variation and selection across the disease-related genes during apple domestication

Author:
Jugpreet Singh; Manyi Sun; Steven B. Cannon; Jun Wu; Awais Khan
Source:
Tree genetics & genomes 2021 v.17 no.3 pp. 29
ISSN:
1614-2942
Subject:
Malus domestica; Malus sylvestris; apple scab; apples; disease resistance; domestication; doubled haploids; fire blight; genes; genetic variation; genomics; germplasm; haplotypes; hybridization; molds (fungi); phylogeny; plant genetics; powdery mildew; quantitative traits
Abstract:
... Although human-imposed selection is known to have altered plant traits during crop domestication, the effect of selection on host susceptibility or resistance is not well understood. Moreover, the domestication of perennial tree fruit crops, unlike annual crops, was driven by hybridization, clonal propagation, and selection of desirable phenotypes, which could confound the accurate assessment of d ...
DOI:
10.1007/s11295-021-01510-1

7. The transcriptomes of healthy and bitter pit-affected ‘Honeycrisp’ fruit reveal genes associated with disorder development and progression

Author:
Benjamin Orcheski; Dong Meng; Yang Bai; Zhangjun Fei; Lailiang Cheng
Source:
Tree genetics & genomes 2021 v.17 no.4 pp. 37
ISSN:
1614-2942
Subject:
Arabidopsis; RNA; abscission; apples; bitter pit; cultivars; data collection; fruiting; fruits; gene expression regulation; plant genetics; sequence analysis; transcriptome
Abstract:
... The high-value apple cultivar ‘Honeycrisp’ is prone to bitter pit, a physiological disorder characterized by the development of dark, sunken lesions on fruit particularly towards the calyx-end. Identifying the genetic basis of bitter pit is critical for mitigation of the disorder and development of bitter pit-free varieties. To this end, we performed an RNA sequencing experiment to compare the pee ...
DOI:
10.1007/s11295-021-01518-7

8. Detection of QTL for apple fruit acidity and sweetness using sensorial evaluation in multiple pedigreed full-sib families

Author:
Marijn Rymenants; Eric van de Weg; Annemarie Auwerkerken; Inge De Wit; Andrzej Czech; Bart Nijland; Henri Heuven; Nico De Storme; Wannes Keulemans
Source:
Tree genetics & genomes 2020 v.16 no.5 pp. 71
ISSN:
1614-2942
Subject:
acidity; apples; cold storage; fruit acids; fruit quality; genotyping; incomplete dominance; loci; models; plant genetics; sensory evaluation; single nucleotide polymorphism arrays; sweetness
Abstract:
... Acidity and sweetness are important qualities for apple breeders and understanding their genetic regulation can improve the breeding process. In previous QTL studies, fruit quality assessments were performed using instrumental measurements, leading to the identification of two major QTL Ma and Ma3. Here, we use sensorial data to investigate the role of known and unknown genetic factors in the perc ...
DOI:
10.1007/s11295-020-01466-8

9. Empirical evaluation of multi-trait DNA testing in an apple seedling population

Author:
Sushan Ru; Craig Hardner; Kate Evans; Dorrie Main; Patrick A. Carter; Julia Harshman; Paul Sandefur; Daniel Edge-Garza; Cameron Peace
Source:
Tree genetics & genomes 2021 v.17 no.1 pp. 13
ISSN:
1614-2942
Subject:
DNA; acidity; apples; cost effectiveness; firmness; fruit acids; genetic improvement; genome; hardness; phenotype; phenotypic selection; plant genetics; seedlings; variance
Abstract:
... Marker-assisted seedling selection (MASS) has much potential to improve the efficiency of traditional apple breeding. Theoretical and empirical evaluation of selection cost and theoretical evaluation of genetic gain in previous studies support this promise. However, there is a lack of empirical validation of MASS efficiency reported in tree fruit crops for genetic gain and cost nor even genetic ga ...
DOI:
10.1007/s11295-021-01494-y

10. Introgressing blue mold resistance into elite apple germplasm by rapid cycle breeding and foreground and background DNA-informed selection

Author:
Feixiong Luo; John L. Norelli; Nicholas P. Howard; Michael Wisniewski; Henryk Flachowsky; Magda-Viola Hanke; Cameron Peace
Source:
Tree genetics & genomes 2020 v.16 no.2 pp. 28
ISSN:
1614-2942
Subject:
DNA; Malus sieversii; alleles; apples; early flowering; fruit quality; genetically modified organisms; genomics; germplasm; introgression; marker-assisted selection; molds (fungi); plant genetics; progeny; resistance genes
Abstract:
... Apple blue mold causes significant postharvest economic losses worldwide. A blue mold resistance locus, qM-Pe3.1, was previously identified on chromosome 3 of Malus sieversii PI 613981, a wild accession with inferior fruit quality. Introgression of the resistance allele into elite breeding germplasm is difficult and success of introgression and the effect of the PI 613981 genome on fruit quality c ...
DOI:
10.1007/s11295-020-1419-5

11. Genetic characterization of flesh browning trait in apple using the non-browning cultivar ‘Aori 27’

Author:
Junko Tazawa; Hidemi Oshino; Tomoyuki Kon; Satoshi Kasai; Tsuyoshi Kudo; Yoshimichi Hatsuyama; Tomoko Fukasawa-Akada; Toshiya Yamamoto; Miyuki Kunihisa
Source:
Tree genetics & genomes 2019 v.15 no.4 pp. 49
ISSN:
1614-2942
Subject:
Malus domestica; acidity; alleles; ancestry; apples; catechol oxidase; chromosome mapping; crossing; cultivars; enzymatic browning; fruits; genomics; haplotypes; homozygosity; inheritance (genetics); juices; loci; parents; phenotypic variation; polyphenols; quantitative trait loci
Abstract:
... Market demand for non-browning apple (Malus × domestica Borkh.) fruit is expected to increase. To facilitate development of non-browning cultivars, we investigated the origin, inheritance pattern, and causal genomic region of the non-browning trait through genetic and quantitative trait loci (QTL) analysis of two F₁ populations (165A27 and KA27) derived from crosses between the non-browning cultiv ...
DOI:
10.1007/s11295-019-1356-3

12. Genetic mapping of a locus controlling the intergeneric hybridization barrier between apple and pear

Author:
Takuya Morimoto; Maia Inaoka; Kiyoshi Banno; Akihiro Itai
Source:
Tree genetics & genomes 2020 v.16 no.1 pp. 5
ISSN:
1614-2942
Subject:
Malus domestica; Pyrus communis; Pyrus pyrifolia; apples; genetic analysis; genomics; genotyping; hybrids; intergeneric hybridization; loci; pears; plant genetics; pollen; pollen tubes; pollination; reproductive isolation
Abstract:
... Hybridizations involving different species are often hindered because of incompatibility reactions. Although these reproductive barriers have been observed in many plant species, the underlying mechanisms remain to be comprehensively elucidated. In this study, we detected a hybridization barrier between apple (Malus × domestica) and pear (Pyrus spp.) belonging to different genera in the subtribe M ...
DOI:
10.1007/s11295-019-1397-7

13. Genome-wide identification, expression profiling, and protein-protein interaction properties of ovate family proteins in apple

Author:
Huifeng Li; Qinglong Dong; Qiang Zhao; Kun Ran
Source:
Tree genetics & genomes 2019 v.15 no.3 pp. 45
ISSN:
1614-2942
Subject:
Liliopsida; Malus domestica; apples; chromosome mapping; chromosomes; genes; mannitol; osmotic stress; phylogeny; plant growth; protein-protein interactions; reverse transcriptase polymerase chain reaction; sodium chloride; stress response; tissues; transcription factors
Abstract:
... As plant-specific transcription factors, ovate family proteins (OFP) were involved in the regulation of plant growth, development, and stress response. Although OFP proteins have been reported in some species, little is known about their evolution, structure, expression levels under biological and abiotic stress, and interactions among OFP members in apple. In this study, 26 apple MdOFP genes were ...
DOI:
10.1007/s11295-019-1354-5

14. Prospects for achieving durable disease resistance with elite fruit quality in apple breeding

Author:
Feixiong Luo; Kate Evans; John L. Norelli; Zhiwu Zhang; Cameron Peace
Source:
Tree genetics & genomes 2020 v.16 no.1 pp. 21
ISSN:
1614-2942
Subject:
DNA; alleles; apples; backcrossing; cultivars; disease resistance; fruit quality; genetic improvement; genetic markers; genetically modified organisms; genomics; germplasm; juvenility; phenotypic selection; plant genetics; probability; progeny
Abstract:
... Apple industries suffer from major apple diseases because of widely planted susceptible cultivars. Developed disease-resistant cultivars that often carry only a single source of resistance are not expected to be durable over time. Cultivars with multiple sources of resistance are often commercially unacceptable due to unsatisfactory fruit quality alleles inherited from unimproved and improved pare ...
DOI:
10.1007/s11295-020-1414-x

15. Genetic mapping of the European canker (Neonectria ditissima) resistance locus Rnd1 from Malus ‘Robusta 5’

Author:
Vincent G. M. Bus; Reiny W. A. Scheper; Monika Walter; Rebecca E. Campbell; Biff Kitson; Lauren Turner; Brent M. Fisher; Sarah L. Johnston; Chen Wu; Cecilia H. Deng; Gagandeep Singla; Deepa Bowatte; Linley K. Jesson; Duncan I. Hedderley; Richard K. Volz; David Chagné; Susan E. Gardiner
Source:
Tree genetics & genomes 2019 v.15 no.2 pp. 25
ISSN:
1614-2942
Subject:
Malus; Neonectria ditissima; apples; bioinformatics; breeding programs; chromosome mapping; conidia; cultivars; disease course; disease resistance; genetic markers; greenhouses; growers; leaves; linkage groups; loci; marker-assisted selection; nucleotide sequences; pathogens; phenotype; progeny; quantitative trait loci; resistance genes; roots; seedlings; shoots; single nucleotide polymorphism; trees
Abstract:
... Current control strategies for the major apple disease European canker (EC) are laborious and expensive, and often do not prevent progression of the disease, which can lead to loss of trees and therefore production. Hence, the development of resistant cultivars is a significant goal for breeders supporting growers in maritime climates conducive to the disease. With genetic markers increasingly bei ...
DOI:
10.1007/s11295-019-1332-y

16. Genome-wide analysis and identification of the SMXL gene family in apple (Malus × domestica)

Author:
Rui Li; Jian-Ping An; Chun-Xiang You; Xiao-Fei Wang; Yu-Jin Hao
Source:
Tree genetics & genomes 2018 v.14 no.4 pp. 61
ISSN:
1614-2942
Subject:
Arabidopsis; Bryophyta; Malus domestica; abiotic stress; apples; bioinformatics; flowers; fruits; gene duplication; genes; genome-wide association study; leaves; models; phylogeny; proteins; rice; roots; signal transduction; stems; strigolactones
Abstract:
... Strigolactones (SLs) are a recently discovered type of plant hormone that controls various developmental processes. The DWARF53 (D53) protein in rice and the SMAX1-LIKE (SMXL) family in Arabidopsis repress SL signaling. In this study, bioinformatics analyses were performed, and 236 SMXL proteins were identified in 28 sequenced plants. A phylogenetic analysis indicated that all potential SMXL prote ...
DOI:
10.1007/s11295-018-1275-8

17. Genome-wide identification and expression analysis of GRF genes regulating apple tree architecture

Author:
Liwei Zheng; Juanjuan Ma; Chunhui Song; Lizhi Zhang; Cai Gao; Dong Zhang; Na An; Jiangping Mao; Mingyu Han
Source:
Tree genetics & genomes 2018 v.14 no.4 pp. 54
ISSN:
1614-2942
Subject:
Malus domestica; apples; benzyladenine; brassinolide; cultivars; databases; dwarfing; gene duplication; gene expression; genes; gibberellic acid; mutation; naphthaleneacetic acid; phylogeny; plant architecture; transcription (genetics); transcription factors; trees
Abstract:
... Growth-regulating factor (GRF) proteins comprise a family of plant-specific transcription factors that play crucial roles in regulating plant architecture. However, information pertaining to the GRF gene family in apple (Malus × domestica) is limited. In the present study, 16 GRF family members were identified in the apple genome, and nine were predicted to be putative targets of apple microRNA396 ...
DOI:
10.1007/s11295-018-1267-8

18. Identification of candidate genes at the Dp-fl locus conferring resistance against the rosy apple aphid Dysaphis plantaginea

Author:
Michela Dall’Agata; G. Pagliarani; S. Padmarasu; M. Troggio; L. Bianco; E. Dapena; M. Miñarro; S. Aubourg; Y. Lespinasse; C. E. Durel; S. Tartarini
Source:
Tree genetics & genomes 2018 v.14 no.1 pp. 12
ISSN:
1614-2942
Subject:
Dysaphis plantaginea; Malus domestica; apples; bacterial artificial chromosomes; breeding; chemical treatment; chromosome walking; clones; cultivars; genes; genetic markers; genomics; insect resistance; linkage groups; loci; pests
Abstract:
... The cultivated apple is susceptible to several pests including the rosy apple aphid (RAA; Dysaphis plantaginea Passerini), control of which is mainly based on chemical treatments. A few cases of resistance to aphids have been described in apple germplasm resources, laying the basis for the development of new resistant cultivars by breeding. The cultivar ‘Florina’ is resistant to RAA, and recently, ...
DOI:
10.1007/s11295-018-1227-3

19. Characterizing the expression of translation elongation factor gene EF1α in pear (Pyrus) fruit: evaluation of EF1α as a housekeeping gene

Author:
Yue-zhi Wang; Mei-song Dai; Dan-ying Cai; Lixiang Miao; Lingzhu Wei; Ze-bin Shi
Source:
Tree genetics & genomes 2018 v.14 no.4 pp. 62
ISSN:
1614-2942
Subject:
Malus domestica; Pyrus; apples; developmental stages; essential genes; eukaryotic cells; fruits; genome expansion; high-throughput nucleotide sequencing; pears; peptide elongation factors; phylogeny; quantitative polymerase chain reaction; reverse transcriptase polymerase chain reaction; ribosomes; species diversity; tissues
Abstract:
... Reference genes are a key factor for the sensitivity and reliability of quantitative reverse transcription-polymerase chain reaction (qRT-PCR) analysis. The elongation factor gene EF1α encodes a highly conserved ubiquitous protein that functions in the binding of aminoacyl-tRNA to the ribosome during peptide synthesis in eukaryotes, which is proposed for qRT-PCR as an internal reference for its pu ...
DOI:
10.1007/s11295-018-1268-7

20. Genetics of resistance in apple against Venturia inaequalis (Wint.) Cke

Author:
Yash P. Khajuria; Sanjana Kaul; Aijaz A. Wani; Manoj K. Dhar
Source:
Tree genetics & genomes 2018 v.14 no.2 pp. 16
ISSN:
1614-2942
Subject:
Malus domestica; Malus floribunda; Venturia inaequalis; apples; binding sites; breeding programs; cultivars; disease control; disease resistance; fungicides; gene interaction; genetic markers; linkage groups; marker-assisted selection; parents; progeny; resistance genes; wild relatives
Abstract:
... Apple (Malus × domestica) is the third important fruit in terms of production and consumption worldwide. Apple scab caused by Venturia inaequalis is the most devastating disease of apple. In the apple-growing regions, many fungicides are sprayed to control the disease leading to increase in the production cost. Development of scab-resistant cultivars is the long-lasting solution to control the dis ...
DOI:
10.1007/s11295-018-1226-4

21. High-throughput sequencing reveals that pale green lethal disorder in apple (Malus) stimulates stress responses and affects senescence

Author:
Benjamin Orcheski; Susan Brown
Source:
Tree genetics & genomes 2017 v.13 no.1 pp. 9
ISSN:
1614-2942
Subject:
Malus; abiotic stress; abscisic acid; apples; biosynthesis; chlorophyll; cotyledons; fruit trees; genes; genetic disorders; germination; high-throughput nucleotide sequencing; loss-of-function mutation; models; mortality; osmotolerance; photosynthesis; phylloquinone; seedlings; sorbitol; starvation; stress response
Abstract:
... Pale green lethal (PGL) is a recessive genetic disorder of apple (Malus) characterized by severe chlorophyll deficiency and seedling lethality. Following germination, seedlings cannot photosynthesize and die at the cotyledon stage. We previously reported that the genetic and biochemical basis of PGL is due to a loss-of-function mutation in a gene required for the biosynthesis of phylloquinone (vit ...
DOI:
10.1007/s11295-016-1097-5

22. Identification of the SRO gene family in apples (Malus×domestica) with a functional characterization of MdRCD1

Author:
Haohao Li; Rui Li; Fengjia Qu; Jifang Yao; Yujin Hao; Xiaofei Wang; Chunxiang You
Source:
Tree genetics & genomes 2017 v.13 no.5 pp. 94
ISSN:
1614-2942
Subject:
Arabidopsis; Malus domestica; abiotic stress; apples; callus; chromosomes; drought tolerance; genes; homeostasis; oxidative stress; phylogeny; proteins; stomatal movement; stress response; transgenic plants
Abstract:
... RCD1 is a member of the plant-specific SRO protein family. Several SRO genes have been functionally identified in the regulation of abiotic stresses in Arabidopsis and other plant species. However, the function of SROs is largely unknown in apple (Malus×domestica). In this study, six MdSRO-encoding genes were isolated, categorized into two types and mapped to six chromosomes. The phylogenetic anal ...
DOI:
10.1007/s11295-017-1175-3

23. Linkage and association analysis of dihydrochalcones phloridzin, sieboldin, and trilobatin in Malus

Author:
Benjamin L. Gutierrez; Jie Arro; Gan-Yuan Zhong; Susan K. Brown
Source:
Tree genetics & genomes 2018 v.14 no.6 pp. 91
ISSN:
1614-2942
Subject:
Malus domestica; Malus prunifolia; apples; chromosome mapping; evolution; genome; germplasm conservation; interspecific hybridization; linkage groups; loci; males; models; nutritive value; phloridzin; physicochemical properties; progeny; quantitative trait loci
Abstract:
... Dihydrochalcones (DHCs) are a distinctive characteristic of Malus species, with phloridzin as the major DHC in most Malus species, including cultivated apple. DHCs in apple have unique chemical properties with commercial and nutritional value and may yield important insights into the evolution and physiology of apple. A few species produce sieboldin and trilobatin instead of phloridzin, and inters ...
DOI:
10.1007/s11295-018-1304-7

24. RNA sequencing analysis provides new insights into dynamic molecular responses to Valsa mali pathogenicity in apple ‘Changfu No. 2’

Author:
Cunwu Zuo; Juan Mao; Zhongjian Chen; Mingyu Chu; Hu Duo; Baihong Chen
Source:
Tree genetics & genomes 2018 v.14 no.5 pp. 75
ISSN:
1614-2942
Subject:
Valsa mali; abscisic acid; apples; auxins; biosynthesis; breeding; calcium; calcium signaling; cell walls; crop production; cultivars; gene expression regulation; gene ontology; growth and development; jasmonic acid; pathogenicity; pathogens; phloem; plant development; plant growth; plant response; resistance genes; sequence analysis; East Asia
Abstract:
... Valsa canker caused by the necrotrophic pathogen Valsa mali (Vm) severely affects apple production in Eastern Asia. The molecular basis underlying the apple response to Vm infection is poorly understood. Hence, we performed RNA sequencing (RNA-seq) to investigate the dynamic gene expression profiles of a major apple cultivar, ‘Changfu No.2’, during Vm infection. Compared with the control (C), 104, ...
DOI:
10.1007/s11295-018-1288-3

25. To what extent do wild apples in Kazakhstan retain their genetic integrity?

Author:
Madina Y. Omasheva; Henryk Flachowsky; Natalya A. Ryabushkina; Alexandr S. Pozharskiy; Nurbol N. Galiakparov; Magda-Viola Hanke
Source:
Tree genetics & genomes 2017 v.13 no.3 pp. 52
ISSN:
1614-2942
Subject:
Malus domestica; Malus sieversii; apples; center of origin; cultivars; extinction; gene flow; genetic analysis; genetic stability; genetic variation; grazing; habitats; heterozygosity; hybrids; microsatellite repeats; risk; urbanization; Kazakhstan
Abstract:
... Kazakhstan belongs to the center of origin of apple. Malus sieversii (Ledeb.) M. Roem., the ancestral progenitor of the cultivated apple is native to this region. Pressure on the natural habitats of this wild apple has been intensified due to agriculture, grazing, and urbanization in the last century. For decades, M. sieversii in Kazakhstan has been subjected to the “Red Book of the Kazakh SSR” an ...
DOI:
10.1007/s11295-017-1134-z

26. Unravelling genetic diversity and cultivar parentage in the Danish apple gene bank collection

Author:
Bjarne Larsen; Torben Bo Toldam-Andersen; Carsten Pedersen; Marian Ørgaard
Source:
Tree genetics & genomes 2017 v.13 no.1 pp. 14
ISSN:
1614-2942
Subject:
Malus domestica; Malus sieversii; Malus sylvestris; alleles; apples; breeding programs; color; cultivar identification; cultivars; flow cytometry; genetic markers; genetic variation; genome-wide association study; genotyping; germplasm; heterozygosity; loci; parentage; pedigree; sports; triploidy; Europe
Abstract:
... Characterization of apple germplasm is important for conservation management and breeding strategies. A set of 448 Malus domestica accessions, primarily of local Danish origin, were genotyped using 15 microsatellite markers. Ploidy levels were determined by flow cytometry. Special emphasis was given to pedigree reconstruction, cultivar fingerprinting and genetic clustering. A reference set of cult ...
DOI:
10.1007/s11295-016-1087-7

27. The isolation of the IGT family genes in Malus × domestica and their expressions in four idiotype apple cultivars

Author:
Limin Wang; Wenbo Cai; Chuanhui Du; Yan Fu; Xuan Xie; Yuandi Zhu
Source:
Tree genetics & genomes 2018 v.14 no.4 pp. 46
ISSN:
1614-2942
Subject:
Malus domestica; apples; breeding programs; buds; cultivars; fruit quality; gene expression; genes; ideotypes; marker-assisted selection; plant architecture; promoter regions; shoot tips; trees
Abstract:
... IGT family genes share the highly conserved motif GφL-(A/T) IGT in domain II and play an essential role in plant form. The tree architecture of apple (Malus × domestica Borkh.) affects fruit quality and yield. However, little information is available regarding IGT family genes in apple. Apple cultivars of four ideotypes (columnar, tip bearer, spur, and standard) were selected to characterize IGT f ...
DOI:
10.1007/s11295-018-1258-9

28. Comparative iTRAQ proteomic profiling of susceptible and resistant apple cultivars infected by Alternaria alternata apple pathotype

Author:
Weichen Ni; Longming Zhu; Renhe Sha; Jianmin Tao; Binhua Cai; Sanhong Wang
Source:
Tree genetics & genomes 2017 v.13 no.1 pp. 23
ISSN:
1614-2942
Subject:
cultivars; protein synthesis; apples; fungal diseases of plants; host plants; linoleate 13S-lipoxygenase; signal transduction; Western blotting; beta-glucanase; proteomics; photosynthesis; Alternaria alternata; plant pathogenic fungi; pathotypes; chitinase
Abstract:
... Alternaria blotch, caused by the Alternaria alternata apple pathotype (A. alternata AP), is one of serious pathogen of apples. In order to better understand the molecular mechanisms that underlie the defense responses of apple resistance to Alternaria blotch disease, a comparative proteomic approach was applied to analyze of susceptible and resistant apple cultivars response to A. alternata AP inf ...
DOI:
10.1007/s11295-017-1104-5

29. Construction of a high density linkage map and its application in the identification of QTLs for soluble sugar and organic acid components in apple

Author:
Baiquan Ma; Shuang Zhao; Benhong Wu; Dongmei Wang; Qian Peng; Albert Owiti; Ting Fang; Liao Liao; Collins Ogutu; Schuyler S. Korban; Shaohua Li; Yuepeng Han
Source:
Tree genetics & genomes 2016 v.12 no.1 pp. 1
ISSN:
1614-2942
Subject:
Malus domestica; apples; chromosome mapping; citric acid; fructose; fruit quality; genetic markers; genotyping; glucose; linkage groups; malic acid; marker-assisted selection; microsatellite repeats; quantitative trait loci; sensory properties; single nucleotide polymorphism; sorbitol; sucrose
Abstract:
... Soluble sugars and organic acids have a strong impact on the overall organoleptic quality of fruits. In this study, we report the identification of quantitative trait loci (QTLs) for individual sugars and organic acids in apple. A high density linkage map of apple was constructed using the 1536 EST-derived SNP GoldenGate genotyping platform. The linkage map consists of 601 molecular markers, inclu ...
DOI:
10.1007/s11295-015-0959-6

30. Fine mapping of the rosy apple aphid resistance locus Dp-fl on linkage group 8 of the apple cultivar ‘Florina’

Author:
G. Pagliarani; E. Dapena; M. Miñarro; C. Denancé; Y. Lespinasse; E. Rat-Morris; M. Troggio; C. E. Durel; S. Tartarini
Source:
Tree genetics & genomes 2016 v.12 no.3 pp. 56
ISSN:
1614-2942
Subject:
Dysaphis plantaginea; apples; chromosome mapping; cultivars; fruit growing; genes; genetic markers; insect pests; linkage groups; loci; marker-assisted selection; microsatellite repeats; pest resistance; plant damage; polymerase chain reaction; single nucleotide polymorphism
Abstract:
... Rosy apple aphid (Dysaphis plantaginea), is one of the major insect pests of apple, causing serious physical and economic damage to fruit production. A dominant resistance gene Dp-fl was previously mapped at the bottom of linkage group LG8 from the cultivar ‘Florina’, linked to the SSR CH01h10. The development of additional genetic markers mapping closer to Dp-fl was needed to position the gene ac ...
DOI:
10.1007/s11295-016-1015-x

31. Genetic architecture of apple fruit quality traits following storage and implications for genetic improvement

Author:
Craig M. Hardner; Kate Evans; Chris Brien; Fred Bliss; Cameron Peace
Source:
Tree genetics & genomes 2016 v.12 no.2 pp. 20
ISSN:
1614-2942
Subject:
Malus domestica; apples; breeding; color; crop production; cultivars; firmness; fruit quality; genetic correlation; genetic improvement; genetic variation; hardness; juiciness; models; prediction; selection response; storage time; sweetness; titratable acidity; Washington (state)
Abstract:
... Accurate prediction of genetic potential and response to selection in breeding requires knowledge of genetic parameters for important selection traits. Data from breeding trials can be used to obtain estimates of these parameters so that predictions are directly relevant to the improvement program. Here, a factor allocation diagram was developed to describe the sampling design used to assess the q ...
DOI:
10.1007/s11295-016-0977-z

32. Genetic diversity, population structure, and linkage disequilibrium of elite and local apple accessions from Belgium using the IRSC array

Author:
Stijn Vanderzande; Diego Micheletti; Michela Troggio; Mark W. Davey; Johan Keulemans
Source:
Tree genetics & genomes 2017 v.13 no.6 pp. 125
ISSN:
1614-2942
Subject:
Malus domestica; apples; breeding; chromosome mapping; cultivars; genetic markers; genetic variation; genome; genotyping; germplasm; germplasm conservation; kinship; linkage disequilibrium; population structure; single nucleotide polymorphism; triploidy; Belgium
Abstract:
... The identification of molecular markers associated with economic and quality traits will help improve breeding for new apple (Malus × domestica Borkh.) cultivars. Tools such as the 8K apple SNP array developed by the RosBREED consortium allow for high-throughput genotyping of SNP polymorphisms within collections. However, genetic characterization and the identification of population stratification ...
DOI:
10.1007/s11295-017-1206-0

33. Genetic pool structure of local apple cultivars from Portugal assessed by microsatellites

Author:
V. Ferreira; A. M. Ramos-Cabrer; V. Carnide; O. Pinto-Carnide; A. Assunção; A. Marreiros; R. Rodrigues; S. Pereira-Lorenzo; I. Castro
Source:
Tree genetics & genomes 2016 v.12 no.3 pp. 36
ISSN:
1614-2942
Subject:
Malus domestica; analysis of variance; apples; correspondence analysis; cultivars; diploidy; gene pool; genetic techniques and protocols; genetic variation; genotype; germplasm; germplasm conservation; homonym; hybridization; landraces; microsatellite repeats; triploidy; Portugal
Abstract:
... A set of 87 apple accessions, located in three Portuguese apple germplasm collections, plus eight reference cultivars, were analyzed using 16 SSRs with the aim of assessing their genetic diversity and structure and evaluating relationships among them. Among the accessions studied, 64 unique genotypes were identified, 51 diploids and 13 putative triploids, revealing 19 groups of synonyms and 4 of h ...
DOI:
10.1007/s11295-016-0997-8

34. Genome-wide identification and expression analysis of the bZIP gene family in apple (Malus domestica)

Author:
Yuan-Yuan Li; Dong Meng; Mingjun Li; Lailiang Cheng
Source:
Tree genetics & genomes 2016 v.12 no.4 pp. 82
ISSN:
1614-2942
Subject:
Malus domestica; apples; basic-leucine zipper transcription factors; drought; fruiting; gene expression regulation; genes; growth and development; leaves; leucine zipper; models; plant growth; quantitative polymerase chain reaction; reverse transcriptase polymerase chain reaction; roots; salt stress; stress response; stress tolerance; transcription (genetics)
Abstract:
... The basic leucine zipper (bZIP) family is one of the largest transcription factor (TF) families in plants, which play crucial roles in plant growth and development. bZIP proteins are involved in multiple biological processes, as well as responses to various biotic/abiotic stresses. Although genome-wide analysis of the bZIP gene family has been conducted in several plant species, only few comprehen ...
DOI:
10.1007/s11295-016-1043-6

35. Homologs of the FB_MR5 fire blight resistance gene of Malus ×robusta 5 are present in other Malus wild species accessions

Author:
Thomas Wöhner; Erik Szentgyörgyi; Andreas Peil; Klaus Richter; Magda-Viola Hanke; Henryk Flachowsky
Source:
Tree genetics & genomes 2016 v.12 no.1 pp. 2
ISSN:
1614-2942
Subject:
Erwinia amylovora; Malus baccata; Malus domestica; Malus prunifolia; alleles; apples; breeding; genotype; germplasm conservation; loci; microsatellite repeats; pathogens; sequence analysis; Korean Peninsula
Abstract:
... Breeding for fire blight resistance is a major goal of nearly all apple breeding programs worldwide. Resources for resistance can be found in Malus wild species accession such as Malus ×robusta 5 (Mr5) which carries the FB_MR5 CC-NBS-LRR fire blight resistance gene. To study the occurrence of FB_MR5 in other genetic resources of Malus, a total of 394 wild species accessions of three international ...
DOI:
10.1007/s11295-015-0962-y

36. Structural genomics and transcriptional characterization of the Dormancy-Associated MADS-box genes during bud dormancy progression in apple

Author:
Diogo Denardi Porto; Vítor da Silveira Falavigna; Rafael Augusto Arenhart; Pâmela Perini; Vanessa Buffon; Rafael Anzanello; Henrique Pessoa dos Santos; Flávio Bello Fialho; Paulo Ricardo Dias de Oliveira; Luís Fernando Revers
Source:
Tree genetics & genomes 2016 v.12 no.3 pp. 46
ISSN:
1614-2942
Subject:
messenger RNA; buds; apples; loci; peaches; perennials; seeds; introns; pears; transcription (genetics); temperate zones; cold treatment; genomics; Malus domestica; dormancy; gene expression regulation; apricots
Abstract:
... The molecular control of bud dormancy establishment and release is still not well understood, although some genes have already been demonstrated to play important roles in this process. The dormancy-associated MADS-box (DAM) genes were first identified in the peach EVERGROWING locus and are considered the main regulators of bud dormancy control. In this work, the apple (Malus × domestica Borkh.), ...
DOI:
10.1007/s11295-016-1001-3

37. Sylleptic branching in winter-headed apple (Malus × domestica) trees: accession-dependent responses and their relationships with other tree architectural characteristics

Author:
Stijn Vanderzande; Niek Hias; Daniel Edge-Garza; Evelyne Costes; Mark W. Davey; Johan Keulemans
Source:
Tree genetics & genomes 2016 v.12 no.5 pp. 87
ISSN:
1614-2942
Subject:
Malus domestica; apical dominance; apples; branches; branching; cultivars; genetic background; growth traits; heading; orchards; statistical models; trees
Abstract:
... Well-feathered apple trees are essential for commercial orchards to optimize yields. However, most cultivars do not form these sylleptic branches readily in commercial nurseries due to high apical dominance. Several treatments exist to promote their formation in the nurseries, one of which is heading. However, not all cultivars are expected to react similarly to these treatments. We studied the br ...
DOI:
10.1007/s11295-016-1046-3

38. A high-density genetic linkage map of bronze loquat based on SSR and RAPD markers

Author:
Shinji Fukuda; Keiichiro Ishimoto; Shusei Sato; Shingo Terakami; Naofumi Hiehata; Toshiya Yamamoto
Source:
Tree genetics & genomes 2016 v.12 no.4 pp. 80
ISSN:
1614-2942
Subject:
Eriobotrya japonica; Malus; Pyrus; apples; chromosome mapping; genes; genetic distance; linkage groups; loci; loquats; microsatellite repeats; pears; quantitative trait loci; random amplified polymorphic DNA technique; Taiwan
Abstract:
... We constructed a high-density genetic linkage map of bronze loquat (Eriobotrya deflexa) by using a three-way cross of loquat (Eriobotrya japonica) × (loquat × bronze loquat) and simple sequence repeat (SSR) and random amplified polymorphic DNA (RAPD) markers. The positions of the SSR loci used in this study were previously identified on reference maps of pears (Pyrus spp.) and apples (Malus spp.). ...
DOI:
10.1007/s11295-016-1040-9

39. Apple NPR1 homologs and their alternative splicing forms may contribute to SA and disease responses

Author:
Junke Zhang; Peng Jiao; Chong Zhang; Xiaolei Tong; Qinping Wei; Lingfei Xu
Source:
Tree genetics & genomes 2016 v.12 no.5 pp. 92
ISSN:
1614-2942
Subject:
Arabidopsis; Diplocarpon mali; Malus baccata; Malus domestica; alternative splicing; amino acid sequences; apples; disease resistance; genes; immune response; leaves; phylogeny; reverse transcriptase polymerase chain reaction; salicylic acid; sequence alignment; signal transduction; systemic acquired resistance; transcription (genetics)
Abstract:
... The non-expressor of pathogenesis-related genes 1 (NPR1) plays essential roles in the salicylic acid (SA) signal pathway and in systemic acquired resistance (SAR) responses. Although a genome-wide analysis of NPR1 gene family has been conducted in some plant species, little is known about these genes in apple (Malus spp.). In this study, eight NPR1 homologs were identified within the apple genome ...
DOI:
10.1007/s11295-016-1050-7

40. Apple fruit texture QTLs: year and cold storage effects on sensory and instrumental traits

Author:
Inès Ben Sadok; Aline Tiecher; Didiana Galvez-Lopez; Marc Lahaye; Pauline Lasserre-Zuber; Maryline Bruneau; Sylvain Hanteville; Roland Robic; Raphael Cournol; François Laurens
Source:
Tree genetics & genomes 2015 v.11 no.6 pp. 119
ISSN:
1614-2942
Subject:
Malus domestica; apples; cold storage; deformation; fruit quality; genotype; hardness; heritability; mechanical properties; models; phenotype; quantitative trait loci; quantitative traits; storage time; texture
Abstract:
... Postharvest texture change is a fundamental question for fruit growers and breeders as it drives consumer acceptability. To decipher the genetic control of fruit texture, we studied an apple segregating population over 2 years at harvest and after 2 months of cold storage. Texture complexity was dissected in quantitative traits, related to (i) sensory perception of fruit quality and (ii) fruit mec ...
DOI:
10.1007/s11295-015-0947-x

41. A CBL gene, MdCBL5, controls the calcium signal and influences pollen tube growth in apple

Author:
Zhaoyu Gu; Dong Meng; Qing Yang; Hui Yuan; Aide Wang; Wei Li; Qiuju Chen; Yi Zhang; Dongmei Wang; Tianzhong Li
Source:
Tree genetics & genomes 2015 v.11 no.2 pp. 27
ISSN:
1614-2942
Subject:
Malus domestica; apples; calcium; calcium signaling; cell growth; fluorescence; gene expression regulation; genes; pollen; pollen tubes; protein subunits; quantitative polymerase chain reaction; ribonucleases; two hybrid system techniques
Abstract:
... As a signaling molecule in plants and animals, calcium plays important roles in cell growth and development. A concentration gradient of calcium in the apex of tip-growing cells regulates polarized growth. In this study, we cloned the gene encoding a calcineurin B subunit protein, MdCBL5, in “Ralls Janet” apple. We found that MdCBL5 was strongly expressed in pollen and that the encoded protein con ...
DOI:
10.1007/s11295-015-0853-2

42. Development of SNP-based assays for disease resistance and fruit quality traits in apple (Malus × domestica Borkh.) and validation in breeding pilot studies

Author:
Isabelle O. Baumgartner; Markus Kellerhals; Fabrizio Costa; Luca Dondini; Giulia Pagliarani; Roberto Gregori; Stefano Tartarini; Lucie Leumann; François Laurens; Andrea Patocchi
Source:
Tree genetics & genomes 2016 v.12 no.3 pp. 35
ISSN:
1614-2942
Subject:
DNA; Dysaphis plantaginea; Malus domestica; Venturia inaequalis; apples; disease resistance; firmness; fruit quality; genes; genetic markers; genomics; genotyping; marker-assisted selection; pest resistance; planting seed; polymerase chain reaction; powdery mildew; seedlings; single nucleotide polymorphism; sowing; storage quality; texture
Abstract:
... The development of molecular markers linked to specific traits is now routine practice, but the gap between genomics and breeding often delays their application. In the frame of the FP7 European project FruitBreedomics, apple pilot studies were designed to exploit the project’s outcomes towards the practical application of marker-assisted breeding (MAB) programs. The aim of this pilot study was to ...
DOI:
10.1007/s11295-016-0994-y

43. Evaluation of new IRAP markers of pear and their potential application in differentiating bud sports and other Rosaceae species

Author:
Jiangmei Sun; Hao Yin; Leiting Li; Yue Song; Lian Fan; Shaoling Zhang; Jun Wu
Source:
Tree genetics & genomes 2015 v.11 no.2 pp. 25
ISSN:
1614-2942
Subject:
Malus domestica; Pyrus communis; alleles; apples; bud sport; cultivars; genetic background; genetic markers; genetic polymorphism; genetic relationships; genetic variation; genomics; loci; mutants; pears
Abstract:
... Inter-retrotransposon amplified polymorphisms (IRAP) are one of the main components of the retrotransposon-based molecular marker system, but currently have no applications in pear. In this context, new IRAP markers were developed and used to study the genetic polymorphism of pear cultivars and bud mutants. In total, eight polymorphic IRAP markers were selected in ten genotypes of pear with a wide ...
DOI:
10.1007/s11295-015-0849-y

44. Genetic diversity of Malus cultivars and wild relatives in the Chinese National Repository of Apple Germplasm Resources

Author:
Yuan Gao; Fengzhi Liu; Kun Wang; Dajiang Wang; Xin Gong; Lijun Liu; Christopher M. Richards; Adam D. Henk; Gayle M. Volk
Source:
Tree genetics & genomes 2015 v.11 no.5 pp. 106
ISSN:
1614-2942
Subject:
Malus baccata; USSR; Malus domestica; Malus prunifolia; Malus sieversii; apples; breeding; cultivars; genetic variation; germplasm; landraces; microsatellite repeats; wild relatives; China; Japan; North America; Western European region
Abstract:
... The Research Institute of Pomology (IP), Chinese Academy of Agricultural Sciences (CAAS) in Xingcheng, China, maintains hundreds of apple accessions that originated from around the world. We have used 16 microsatellites to assess the diversity and differentiation of 391 accessions within the IP that represent Malus × domestica (from China, Japan, former Soviet Republics, and Western countries) as ...
Handle:
10113/62431
DOI:
10.1007/s11295-015-0913-7

45. Identification and genetic characterization of a quantitative trait locus for adventitious rooting from apple hardwood cuttings

Author:
Shigeki Moriya; Hiroshi Iwanami; Takashi Haji; Kazuma Okada; Masahiko Yamada; Toshiya Yamamoto; Kazuyuki Abe
Source:
Tree genetics & genomes 2015 v.11 no.3 pp. 59
ISSN:
1614-2942
Subject:
Malus domestica; adventitious roots; apples; auxins; environmental factors; ethylene; genes; genetic variance; genotyping; hardwood; marker-assisted selection; phenotypic variation; plant cuttings; quantitative trait loci; rooting; rootstocks; transcription factors; vegetative propagation
Abstract:
... Vegetative propagation enables the multiplication of plants that are genetically identical to the original. Hardwood cuttings have a low cost advantage and are used widely for the propagation of JM series apple rootstocks, which root well from hardwood cuttings. To breed new apple rootstocks with similarly high rooting capabilities, the development of a marker-assisted selection method is desirabl ...
DOI:
10.1007/s11295-015-0883-9

46. A functional genetic marker for apple red skin coloration across different environments

Author:
David Chagné; Chris Kirk; Natalie How; Claire Whitworth; Cristian Fontic; Gemma Reig; Greg Sawyer; Simon Rouse; Lara Poles; Susan E. Gardiner; Satish Kumar; Richard Espley; Richard K. Volz; Michela Troggio; Ignasi Iglesias
Source:
Tree genetics & genomes 2016 v.12 no.4 pp. 67
ISSN:
1614-2942
Subject:
Malus domestica; apples; color; genetic markers; linkage groups; marker-assisted selection; pigmentation; quantitative polymerase chain reaction; quantitative trait loci; seedlings; single nucleotide polymorphism; summer; temperate zones; temperature; Italy; New Zealand; Spain
Abstract:
... The red skin color desired by most apple consumers is not easy to achieve in warm climates, as the expression of MYB10, which regulates red pigmentation in apple, is influenced negatively by high temperatures. We describe the development and validation of a genetic marker for red skin coloration that effectively predicts color in a warm summer environment in Spain, as well as more temperate climat ...
DOI:
10.1007/s11295-016-1025-8

47. Candidate defense genes as predictors of partial resistance in ‘Président Roulin’ against apple scab caused by Venturia inaequalis

Author:
Héloïse Bastiaanse; Yordan Muhovski; Dominique Mingeot; Marc Lateur
Source:
Tree genetics & genomes 2015 v.11 no.6 pp. 125
ISSN:
1614-2942
Subject:
Malus domestica; Venturia inaequalis; apples; breeding; cultivars; disease resistance; fungi; genes; genetic markers; phenotypic variation; progeny; quantitative trait loci; scab diseases
Abstract:
... Scab, caused by the fungus Venturia inaequalis, is one of the most important diseases of apple. Although major scab resistance genes (R gene) have been widely studied, little is known about the molecular mechanisms underlying partial resistance, thought to be more durable. We used a candidate gene approach to decipher the genetic determinism of the durable partial resistance in ‘Président Roulin’, ...
DOI:
10.1007/s11295-015-0948-9

48. Cloning and functional characterization of the Rvi15 (Vr2) gene for apple scab resistance

Author:
Henk J. Schouten; Jos Brinkhuis; Aranka van der Burgh; Jan G. Schaart; Remmelt Groenwold; Giovanni A. L. Broggini; Cesare Gessler
Source:
Tree genetics & genomes 2014 v.10 no.2 pp. 251-260
ISSN:
1614-2942
Subject:
cultivars; Venturia inaequalis; proteins; apples; sporulation; interleukin-1; apoplast; cytoplasm; mammals; induced resistance; introns; hypersensitive response; pathogens
Abstract:
... Apple scab, caused by Venturia inaequalis, is a serious disease of apple. Previously, the scab resistance Rvi15 (Vr2) from the accession GMAL 2473 was genetically mapped, and three candidate resistance genes were identified. Here, we report the cloning and functional characterization of these three genes, named Vr2-A, Vr2-B, and Vr2-C. Each gene was cloned with its native promoter, terminator and ...
DOI:
10.1007/s11295-013-0678-9

49. Genetic and physical mapping of Co, a gene controlling the columnar trait of apple

Author:
Takuya Morimoto; Kiyoshi Banno
Source:
Tree genetics & genomes 2015 v.11 no.1 pp. 807
ISSN:
1614-2942
Subject:
Malus; apples; branching; chromosome mapping; cultivars; genes; genotype; genotyping; internodes; loci; marker-assisted selection; microsatellite repeats; planting; progeny
Abstract:
... The columnar trait in apple (Malus × domestica Borkh.) is characterized by short internodes, reduced branching, and increased spurs, which are labor-saving features useful for high-density planting. In this study, we used six segregating populations of a descendant of the columnar-type cultivar ‘Maypole’ and constructed a genetic linkage map for the columnar gene (Co). Based on the linkage map of ...
DOI:
10.1007/s11295-014-0807-0

50. Genetic mapping of the loquat canker resistance locus in bronze loquat (Eriobotrya deflexa)

Author:
Shinji Fukuda; Keiichiro Ishimoto; Shusei Sato; Shingo Terakami; Toshiya Yamamoto; Naofumi Hiehata
Source:
Tree genetics & genomes 2014 v.10 no.4 pp. 875-883
ISSN:
1614-2942
Subject:
Eriobotrya japonica; Pseudomonas syringae pv. eriobotryae; apples; chromosome mapping; cultivars; genetic markers; genome; genomics; introgression; linkage groups; loci; loquats; marker-assisted selection; microsatellite repeats
Abstract:
... Loquat canker disease, caused by Pseudomonas syringae pv. eriobotryae, is one of the most harmful diseases of commercial cultivars of loquat (Eriobotrya japonica). To introgress resistance to loquat canker, we identified the linkage group and position of the resistance locus derived from the related wild species bronze loquat (Eriobotrya deflexa). The segregation of resistance and susceptibility f ...
DOI:
10.1007/s11295-014-0728-y