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1. An IBD-based mixed model approach for QTL mapping in multiparental populations

Author:
Wenhao Li; Martin P. Boer; Chaozhi Zheng; Ronny V. L. Joosen; Fred A. van Eeuwijk
Source:
Theoretical and applied genetics 2021 v.134 no.11 pp. 3643-3660
ISSN:
0040-5752
Subject:
gene segregation,   etc   ; Markov chain; ancestry; kinship; quantitative traits; rabbits; statistical models; variance;     Show all 8 Subjects
Abstract:
... KEY MESSAGE: The identity-by-descent (IBD)-based mixed model approach introduced in this study can detect quantitative trait loci (QTLs) referring to the parental origin and simultaneously account for multilevel relatedness of individuals within and across families. This unified approach is proved to be a powerful approach for all kinds of multiparental population (MPP) designs. Multiparental popu ...
DOI:
10.1007/s00122-021-03919-7

2. Genetic characterization of the red coloured corolla phenotype for Gossypium arboreum accession PI 529731

Author:
John E. Erpelding
Source:
Plant breeding 2021 v.140 no.1 pp. 142-149
ISSN:
0179-9541
Subject:
gene segregation,   etc   ; Gossypium arboreum; alleles; color; corolla; crossing; dominance (genetics); dominant genes; gene expression; genetic analysis; genetic traits; genetic variation; loci; phenotype; pigmentation; progeny;     Show all 16 Subjects
Abstract:
... Flower corolla colour is an important trait for the attraction of pollinators and for the horticultural industry. Gossypium arboreum (L.) accessions from the United States Department of Agriculture germplasm collection frequently show flowers with a yellow coloured corolla. Accession PI 529731 is unique in that the flowers have a red coloured corolla. Genetic characterization of corolla pigmentati ...
Handle:
10113/7273781
DOI:
10.1111/pbr.12884

3. Fifty Generations of Amitosis: Tracing Asymmetric Allele Segregation in Polyploid Cells with Single-Cell DNA Sequencing

Author:
Valerio Vitali; Rebecca Rothering; Francesco Catania
Source:
Microorganisms 2021 v.9 no.9 pp. -
ISSN:
2076-2607
Subject:
gene segregation,   etc   ; DNA; Paramecium tetraurelia; computer simulation; eukaryotic cells; genome; loci; phenotype; polyploidy; selfing; vegetative growth;     Show all 11 Subjects
Abstract:
... Amitosis is a widespread form of unbalanced nuclear division whose biomedical and evolutionary significance remain unclear. Traditionally, insights into the genetics of amitosis have been gleaned by assessing the rate of phenotypic assortment. Though powerful, this experimental approach relies on the availability of phenotypic markers. Leveraging Paramecium tetraurelia, a unicellular eukaryote wit ...
DOI:
10.3390/microorganisms9091979

4. A tetrasomic inheritance model and likelihood‐based method for mapping quantitative trait loci in autotetraploid species

Author:
Jing Chen; Lindsey Leach; Jixuan Yang; Fengjun Zhang; Qin Tao; Zhenyu Dang; Yue Chen; Zewei Luo
Source:
new phytologist 2021 v.230 no.1 pp. 387-398
ISSN:
0028-646X
Subject:
gene segregation,   etc   ; Solanum tuberosum; alleles; autotetraploidy; blueberries; diploidy; genetic markers; meiosis; microarray technology; models; potatoes; quantitative traits;     Show all 12 Subjects
Abstract:
... Dissecting the genetic architecture of quantitative traits in autotetraploid species is a methodologically challenging task, but a pivotally important goal for breeding globally important food crops, including potato and blueberry, and ornamental species such as rose. Mapping quantitative trait loci (QTLs) is now a routine practice in diploid species but is far less advanced in autotetraploids, la ...
DOI:
10.1111/nph.16413

5. Genetic control of flower petal number in Rosa x Damascena Mill f. trigintipetala

Author:
Krasimir Rusanov; Natasha Kovacheva; Mila Rusanova; Marcus Linde; Thomas Debener; Ivan Atanassov
Source:
Biotechnology, biotechnological equipment 2019 v.33 no.1 pp. 597-604
ISSN:
1314-3530
Subject:
gene segregation,   etc   ; additive effect; alleles; analysis of variance; biotechnology; corolla; equipment; genomics; loci; self-pollination; tetraploidy;     Show all 11 Subjects
Abstract:
... We studied the petal number trait in a population obtained after self-pollination of R. x damascena f. trigintipetala following analysis of molecular markers which have previously been mapped near the major dominant locus Blfo/d6 determining this trait in other rose species including R. multiflora and R. hybrida. The results showed that the same genetic mechanism, which determines the petal number ...
DOI:
10.1080/13102818.2019.1599731

6. Correction to: Segregation of a novel p.(Ser270Tyr) MAF mutation and p.(Tyr56*) CRYGD variant in a family with dominantly inherited congenital cataracts

Author:
Lubica Dudakova; Viktor Stranecky; Olga Ulmanova; Eva Hlavova; Marie Trková; Andrea L. Vincent; Petra Liskova
Source:
Molecular biology reports 2017 v.44 no.6 pp. 441
ISSN:
0301-4851
Subject:
gene segregation,   etc   ; cataract; human genetics; humans; mutation;     Show all 5 Subjects
Abstract:
... There was a spacing error in the initial online publication, and there were errors in the Acknowledgments section. The original article has been updated. ...
DOI:
10.1007/s11033-017-4130-3

7. Marker-Assisted Introgression of Multiple Resistance Genes Confers Broad Spectrum Resistance against Bacterial Leaf Blight and Blast Diseases in PUTRA-1 Rice Variety

Author:
Samuel C. Chukwu; Mohd Y. Rafii; Shairul I. Ramlee; Siti I. Ismail; Yusuff Oladosu; Kazeem Kolapo; Ibrahim Musa; Jamilu Halidu; Isma’ila Muhammad; Muideen Ahmed
Source:
Agronomy 2019 v.10 no.1 pp. -
ISSN:
2073-4395
Subject:
gene segregation,   etc   ; Magnaporthe oryzae; Xanthomonas oryzae pv. oryzae; backcrossing; crop production; genetic background; host plants; introgression; leaf blight; microsatellite repeats; pathotypes; resistance genes; rice; virulence;     Show all 14 Subjects
Abstract:
... Bacterial leaf blight caused by Xanthomonas oryzae pv oryzae (Xoo) and blast caused by Magnaporthe oryzae are major diseases responsible for significant yield loss in rice production across all rice growing regions. Host plant resistance has been advocated as a sustainable means of guarding against the diseases. This experiment was conducted with the aim to introgress multiple resistance genes aga ...
DOI:
10.3390/agronomy10010042

8. Selection-free markerless genome manipulations in the polyploid bacterium Thermus thermophilus

Author:
Haijuan Li
Source:
3 Biotech 2019 v.9 no.4 pp. 148
ISSN:
2190-572X
Subject:
gene segregation,   etc   ; Thermus thermophilus; alleles; bacteria; beta-glucosidase; gene deletion; genomics; heterozygosity; homologous recombination; homozygosity; knockout mutants; loci; models; phytoene synthase; plasmid vectors; polyploidy; selection pressure;     Show all 17 Subjects
Abstract:
... A genome manipulation approach based on double-crossover homologous recombination was developed in the polyploid model organism Thermus thermophilus HB27 without the use of any selectable marker. The method was established and optimized by targeting the megaplasmid-encoded β-glucosidase gene bgl. When linear and supercoiled forms of marker-free suicide vector were used for transformations, the fre ...
DOI:
10.1007/s13205-019-1682-z
PubMed:
30944795
PubMed Central:
PMC6431304

9. The primitively social behavior of Euglossa cordata (Hymenoptera, Apidae, Euglossini): a view from the perspective of kin selection theory and models of reproductive skew

Author:
Gabriele Antico Freiria; Carlos Alberto Garófalo; Marco Antonio Del Lama
Source:
Apidologie 2017 v.48 no.4 pp. 523-532
ISSN:
0044-8435
Subject:
gene segregation,   etc   ; Euglossa; daughters; females; insect behavior; kin selection; kinship; microsatellite repeats; models; mothers; nests; sisters; social behavior;     Show all 13 Subjects
Abstract:
... The present study investigated the level of reproductive skew during the reactivation processes of 11 nests of Euglossa cordata. Behavioral observations associated with kinship analysis between offspring and females involved in these processes were carried out. Different types of associations between females occurred in these reactivations: between mothers and daughters, sisters, cousins, and unre ...
DOI:
10.1007/s13592-017-0496-4

10. Molecular Characterisation of a Supergene Conditioning Super-High Vitamin C in Kiwifruit Hybrids

Author:
John McCallum; William Laing; Sean Bulley; Susan Thomson; Andrew Catanach; Martin Shaw; Mareike Knaebel; Jibran Tahir; Simon Deroles; Gail Timmerman-Vaughan; Ross Crowhurst; Elena Hilario; Matthew Chisnall; Robyn Lee; Richard Macknight; Alan Seal
Source:
Plants 2019 v.8 no.7 pp. -
ISSN:
2223-7747
Subject:
gene segregation,   etc   ; Actinidia chinensis; Actinidia eriantha; alleles; ascorbic acid; backcrossing; diploidy; fruits; gene expression regulation; genome-wide association study; genotype; hybrids; kiwifruit; leaves; loci; major genes; messenger RNA; metabolism; pleiotropy; polymerase chain reaction; quantitative trait loci; sequence analysis;     Show all 22 Subjects
Abstract:
... During analysis of kiwifruit derived from hybrids between the high vitamin C (ascorbic acid; AsA) species Actinidia eriantha and A. chinensis, we observed bimodal segregation of fruit AsA concentration suggesting major gene segregation. To test this hypothesis, we performed whole-genome sequencing on pools of hybrid genotypes with either high or low AsA fruit. Pool-GWAS (genome-wide association st ...
DOI:
10.3390/plants8070237
PubMed:
31336644
PubMed Central:
PMC6681377

11. A low citric acid trait in cranberry: genetics and molecular mapping of a locus impacting fruit acidity

Author:
Stephanie Kay Fong; Joseph Kawash; Yifei Wang; Jennifer Johnson-Cicalese; James Polashock; Nicholi Vorsa
Source:
Tree genetics & genomes 2020 v.16 no.3 pp. 42
ISSN:
1614-2942
Subject:
gene segregation,   etc   ; Vaccinium macrocarpon; alleles; chromosome mapping; citric acid; cranberries; cultivars; flavor; fruit acids; fruit composition; fruit quality; genetic markers; genetic traits; genetic variation; genotype; loci; microsatellite repeats; phenotype; progeny; recessive genes; single nucleotide polymorphism; titratable acidity; wild relatives;     Show all 23 Subjects
Abstract:
... The fruit of American cranberry (Vaccinium macrocarpon Ait.) is known for its tart, acidic taste. Although some acidity is required for expressing fruit flavor, the high acidity of cranberry requires considerable amounts of “added-sugars” to make cranberry products palatable. Reducing acidity of cranberry would allow for less sugar to be added to cranberry products. In fruit, total acidity is quan ...
Handle:
10113/6931907
DOI:
10.1007/s11295-020-01432-4

12. Arabidopsis glutamate:glyoxylate aminotransferase 1 (Ler) mutants generated by CRISPR/Cas9 and their characteristics

Author:
Yaping Liang; Xiuying Zeng; Xinxiang Peng; Xuewen Hou
Source:
Transgenic research 2018 v.27 no.1 pp. 61-74
ISSN:
0962-8819
Subject:
gene segregation,   etc   ; Agrobacterium radiobacter; Arabidopsis; RNA; enzyme activity; flowering; gene editing; gene expression regulation; genes; genetically modified organisms; heterozygosity; homozygosity; molecular cloning; mutants; mutation; phenotype; photorespiration; transfer DNA; transferases;     Show all 19 Subjects
Abstract:
... Clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated 9 (CRISPR/Cas9) technology provides an efficient tool for editing the genomes of plants, animals and microorganisms. Glutamate:glyoxylate aminotransferase 1 (GGAT1) is a key enzyme in the photorespiration pathway; however, its regulation mechanism is largely unknown. Given that EMS-mutagenized ggat1 (Col-0 backgro ...
DOI:
10.1007/s11248-017-0052-z

13. Orthogonal contrast based models for quantitative genetic analysis in autotetraploid species

Author:
Jing Chen; Fengjun Zhang; Lin Wang; Lindsey Leach; Zewei Luo
Source:
new phytologist 2018 v.220 no.1 pp. 332-346
ISSN:
0028-646X
Subject:
gene segregation,   etc   ; autotetraploidy; breeding; genes; genetic analysis; genetic models; genetic variance; genotype; linear models; ornamental plants; phenotype; plant height; population genetics; population structure; potatoes; quantitative trait loci; quantitative traits;     Show all 17 Subjects
Abstract:
... Dissecting the genetic architecture of quantitative traits is a crucial goal for efficient breeding of polyploid plants, including autotetraploid crop species, such as potato and coffee, and ornamentals such as rose. To meet this goal, a quantitative genetic model is needed to link the genetic effects of genes or genotypes at quantitative trait loci (QTL) to the phenotype of quantitative traits. W ...
DOI:
10.1111/nph.15284

14. Molecular and phenotypic identification of B-genome introgression linked to Leptosphaeria maculans resistant gene Rlm6 in Brassica napus × B. juncea interspecific hybrids

Author:
M. Harunur Rashid; Georg Hausner; W. G. Dilantha Fernando
Source:
Euphytica 2018 v.214 no.11 pp. 205
ISSN:
0014-2336
Subject:
gene segregation,   etc   ; Brassica juncea; Brassica napus; Plenodomus lingam; backcrossing; canola; disease resistance; dominant genes; fungi; genetic markers; hybrids; interspecific hybridization; introgression; loci; pathogens; phenotype; plant breeding; progeny; resistance genes; China;     Show all 20 Subjects
Abstract:
... Blackleg is a devastating disease in canola worldwide, except in China, caused by the fungal pathogen Leptosphaeria maculans. The B-genome Brassica species were reported to have a strong resistance to the blackleg pathogen L. maculans. Backcross (BC) generations, BC₁F₁ to BC₄F₁, were derived from a cross B. napus × B. juncea. Phenotype of L. maculans isolate J20 showed that 49% of BC₁F₁, 27% of BC ...
DOI:
10.1007/s10681-018-2287-z

15. Characterization of a highly polymorphic region closely linked to the AST locus and its potential use in breeding of hexaploid persimmon (Diospyros kaki Thunb.)

Author:
Atsushi Kono; Shozo Kobayashi; Noriyuki Onoue; Akihiko Sato
Source:
Molecular breeding 2016 v.36 no.5 pp. 56
ISSN:
1380-3743
Subject:
gene segregation,   etc   ; Diospyros kaki; alleles; astringency; crossing; cultivars; fruits; genetic markers; hexaploidy; homozygosity; loci; microsatellite repeats; parents; persimmons; progeny;     Show all 15 Subjects
Abstract:
... The pollination-constant, non-astringent (PCNA) type of persimmon is ideal for production because its fruits lose astringency at harvest regardless of seed formation. The PCNA trait in Japanese persimmons is controlled by a single locus, AST, and is recessive to the non-PCNA trait. Because cultivated persimmon is hexaploid, only the homozygous genotype with six recessive alleles is PCNA. A region ...
DOI:
10.1007/s11032-016-0480-0

16. Family‐assisted inference of the genetic architecture of major histocompatibility complex variation

Author:
A. Gaigher; R. Burri; W. H. Gharib; P. Taberlet; A. Roulin; L. Fumagalli
Source:
Molecular ecology resources 2016 v.16 no.6 pp. 1353-1364
ISSN:
1755-098X
Subject:
gene segregation,   etc   ; Tyto alba; alleles; copy number variation; ecology; evolution; genotyping; high-throughput nucleotide sequencing; loci; major histocompatibility complex; progeny;     Show all 11 Subjects
Abstract:
... With their direct link to individual fitness, genes of the major histocompatibility complex (MHC) are a popular system to study the evolution of adaptive genetic diversity. However, owing to the highly dynamic evolution of the MHC region, the isolation, characterization and genotyping of MHC genes remain a major challenge. While high‐throughput sequencing technologies now provide unprecedented res ...
DOI:
10.1111/1755-0998.12537

17. A major QTL and a candidate gene for heading date in an early maturing rice mutant induced by gamma ray irradiation

Author:
Sun-Goo Hwang; Jin-Hyuk Kim; Cheol Seong Jang
Source:
Genes & genomics 2016 v.38 no.8 pp. 747-756
ISSN:
1976-9571
Subject:
gene segregation,   etc   ; DNA; chromosome mapping; chromosomes; crop yield; gamma radiation; genes; heading; heterozygosity; irradiation; mutants; quantitative trait loci; rice; sowing; temperature;     Show all 15 Subjects
Abstract:
... Flowering time is an important trait associated with crop yield and quality. In a previous report, genome variation of significant DNA polymorphism was observed in the early maturing type rice mutant (EMT1) compared to that of wild type (WT). To identify quantitative trait loci (QTL) for flowering time, we constructed a linkage map of 36 InDel- and 6 SNP-markers with F₂ plants derived from the cro ...
DOI:
10.1007/s13258-016-0419-1

18. Mapping of quantitative trait loci for microspore embryogenesis-related traits in the oilseed rape doubled haploid population DH4069 × Express 617

Author:
Ariana Valdés; Rosemarie Clemens; Christian Möllers
Source:
Molecular breeding 2018 v.38 no.5 pp. 65
ISSN:
1380-3743
Subject:
gene segregation,   etc   ; Brassica napus; confidence interval; doubled haploids; embryogenesis; genes; genetic markers; genotype; genotyping; heritability; inbred lines; linkage groups; microspores; parents; quantitative trait loci; single nucleotide polymorphism; survival rate;     Show all 17 Subjects
Abstract:
... Oilseed rape (Brassica napus L.) is among dicotyledonous plants, a model species for microspore embryogenesis. Tremendous differences exist among oilseed rape genotypes in their embryogenic response and direct embryo to plant conversion. Despite some attempts to identify relevant genes, the genetic basis of these traits remains largely unknown. The objective of this work was to develop and to prov ...
DOI:
10.1007/s11032-018-0822-1

19. Simple sequence repeat markers linked to the everbearing flowering gene in long-day and day-neutral cultivars of the octoploid cultivated strawberry Fragaria × ananassa

Author:
Masanori Honjo; Tsukasa Nunome; Sono Kataoka; Takayoshi Yano; Megumi Hamano; Hiromichi Yamazaki; Toshiya Yamamoto; Masami Morishita; Susumu Yui
Source:
Euphytica 2016 v.209 no.2 pp. 291-303
ISSN:
0014-2336
Subject:
gene segregation,   etc   ; Fragaria ananassa; alleles; ancestry; crossing; dominant genes; everbearing cultivars; flowering; genotype; loci; microsatellite repeats; octaploidy; phenotype; plant breeding; progeny; strawberries;     Show all 16 Subjects
Abstract:
... To identify markers closely linked to the everbearing gene in the octoploid cultivated strawberry Fragaria × ananassa, we conducted linkage analysis based on simple sequence repeat (SSR) polymorphisms. We analyzed F₁ populations from three crosses: ‘Sagahonoka’ × ‘Summer-berry’ (94 individuals), ‘Sagahonoka’ × ‘Ever-berry’ (137 individuals), and ‘Hecker’ × ‘Sagahonoka’ (177 individuals). ‘Sagahono ...
DOI:
10.1007/s10681-015-1626-6

20. Development of PCR-based CNP marker of rice Waxy gene with confronting two-pair primers

Author:
H. Cai; D. Xu; L. Zhou; J. Cheng; Z. Zhang; J. Wu; A. You
Source:
Russian journal of genetics 2015 v.51 no.7 pp. 673-676
ISSN:
1022-7954
Subject:
gene segregation,   etc   ; alleles; amylose; backcrossing; glutinous rice; introns; loci; major genes; marker-assisted selection; polymerase chain reaction; single nucleotide polymorphism; China;     Show all 12 Subjects
Abstract:
... Rice amylose content (AC) is a key determinant for grain end-use quality attributes. The base substitution ((G → T) at +1 loci of the first intron (In1) of Waxy (Wx), a major gene controlling AC in rice, results in decreased AC. A new SNP typing method of Wx In1 based on polymerase chain reaction with confronting two-pair primers (PCR-CTPP) was reported here: first its practicability was confirmed ...
DOI:
10.1134/S1022795415060034