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1. DNA methylation dynamics and dysregulation delineated by high-throughput profiling in the mouse

Author:
Wanding Zhou; Toshinori Hinoue; Bret Barnes; Owen Mitchell; Waleed Iqbal; Sol Moe Lee; Kelly K. Foy; Kwang-Ho Lee; Ethan J. Moyer; Alexandra VanderArk; Julie M. Koeman; Wubin Ding; Manpreet Kalkat; Nathan J. Spix; Bryn Eagleson; John Andrew Pospisilik; Piroska E. Szabó; Marisa S. Bartolomei; Nicole A. Vander Schaaf; Liang Kang; Ashley K. Wiseman; Peter A. Jones; Connie M. Krawczyk; Marie Adams; Rishi Porecha; Brian H. Chen; Hui Shen; Peter W. Laird
Source:
Cell genomics 2022 v.2 no.7 pp. 100144
ISSN:
2666-979X
Subject:
backcrossing,   etc   ; DNA; DNA methylation; carcinogenesis; genomics; intestines; mice; xenotransplantation;     Show all 8 Subjects
Abstract:
... We have developed a mouse DNA methylation array that contains 296,070 probes representing the diversity of mouse DNA methylation biology. We present a mouse methylation atlas as a rich reference resource of 1,239 DNA samples encompassing distinct tissues, strains, ages, sexes, and pathologies. We describe applications for comparative epigenomics, genomic imprinting, epigenetic inhibitors, patient- ...
DOI:
10.1016/j.xgen.2022.100144

2. Development of near isogenic lines for grain softness through marker assisted backcross breeding in wheat

Author:
Tej Pratap Jitendra Kumar; Anjali Rai; Sumit K. Singh; Rajeev Ranjan Kumar; Arvind K. Ahlawat; Savita Saini; R. B. Shukla; Namita Bedi; Anju Mahendru-Singh
Source:
Journal of plant biochemistry and biotechnology 2022 v.31 no.2 pp. 410-420
ISSN:
0971-7811
Subject:
backcrossing,   etc   ; biotechnology; grain yield; hardness; heterozygosity; plant biochemistry; wheat;     Show all 7 Subjects
Abstract:
... The genes for grain softness and rust resistance were transferred from a soft grained Australian wheat variety (Barham) to a hard grained Indian wheat variety (DBW14) through marker assisted back cross breeding. Backcrosses were made with recurrent parent in the BC₁F₁ plants that were found positive for markers of Pina-D1a, Pina-D1b and Lr37b genes. The BC₂F₁ plants were further screened and those ...
DOI:
10.1007/s13562-021-00712-x

3. Identification of a major QTL for root thickness in diploid wild sweetpotato (Ipomoea trifida) using QTL-seq

Author:
Keisuke Suematsu; Masaru Tanaka; Sachiko Isobe
Source:
Plant production science 2022 v.25 no.1 pp. 120-129
ISSN:
1349-1008
Subject:
backcrossing,   etc   ; DNA; Ipomoea; diploidy; evolution; genotyping; quantitative traits; sweet potatoes;     Show all 8 Subjects
Abstract:
... Ipomoea trifida, the closest relative of sweetpotato, does not generally form storage roots, but some lines develop thick roots similar to the storage roots of the sweetpotato. Revealing the molecular mechanism of thick root development in I. trifida would help us understand the evolution of storage roots in the sweetpotato. In this study, we conducted a mapping method for quantitative trait loci ...
DOI:
10.1080/1343943X.2021.1927766

4. Genetic similarity between donor and recurrent parents can reduce the number of backcross generation in marker-assisted backcross

Author:
Elton Otacílio de Souza; Gustavo Vitti Môro; Gabriel Belfort Rodrigues; Ivan Schuster
Source:
Euphytica 2022 v.218 no.5 pp. 55
ISSN:
0014-2336
Subject:
backcrossing,   etc   ; corn; genetic distance; genetic similarity; genetically modified organisms; genome; hybrids;     Show all 7 Subjects
Abstract:
... The marker assisted backcross (MABC) method is the most used to obtain transgenic hybrid and transgenic inbred lines in maize with few backcrosses (BC) generations. It is possible that the use of donor parents with greater genetic similarity with recurrent parents can further reduce the number of BC generation to recover recurrent parent genome. The objective of this study was to verify the influe ...
DOI:
10.1007/s10681-022-03009-9

5. Small RNAs mediate transgenerational inheritance of genome-wide trans-acting epialleles in maize

Author:
Shuai Cao; Longfei Wang; Tongwen Han; Wenxue Ye; Yang Liu; Yi Sun; Stephen P. Moose; Qingxin Song; Z. Jeffrey Chen
Source:
Genome biology 2022 v.23 no.1 pp. 53
ISSN:
1474-760X
Subject:
backcrossing,   etc   ; animals; biogenesis; corn; epigenetics; genome; genomics; hybridization; hybrids; methylation; selfing;     Show all 11 Subjects
Abstract:
... BACKGROUND: Hybridization and backcrossing are commonly used in animal and plant breeding to induce heritable variation including epigenetic changes such as paramutation. However, the molecular basis for hybrid-induced epigenetic memory remains elusive. RESULTS: Here, we report that hybridization between the inbred parents B73 and Mo17 induces trans-acting hypermethylation and hypomethylation at t ...
DOI:
10.1186/s13059-022-02614-0

6. Deriving stable tropical gynoecious inbred lines of slicing cucumber from American pickling cucumber using MABB

Author:
Tusar Kanti Behera; G. Boopalakrishnan; Gograj Singh Jat; Anilabha Das Munshi; Harshwardhan Choudhary; Amarnath Ravindran; Shilpi Kumari; Rajni Kumari
Source:
Horticulture, environment and biotechnology 2022 v.63 no.2 pp. 263-274
ISSN:
2211-3452
Subject:
backcrossing,   etc   ; Cucumis sativus; biotechnology; cucumbers; cultivars; early development; environment; horticulture; loci; monoecy;     Show all 10 Subjects
Abstract:
... This study was conducted to develop inbred backcross lines (IBLs) in Indian slicing cucumber (Cucumis sativus L.) with the gynoecious trait. The F₂ mapping population was developed using the Indian monoecious cultivar of light-green-fruited Pusa Uday as the recurrent parent and the American gynoecious pickling line G421 as a donor. Two markers, SSR13251 and SSR15516, were found to be closely linke ...
DOI:
10.1007/s13580-021-00392-5

7. Estimation of genetic parameters and character association for yield and quality traits in BC₁F₂ population of rice (Oryza sativa L.)

Author:
R. Prathiksha; R. Pushpam; K. Amudha; M. Raveendran
Source:
Electronic journal of plant breeding 2022 v.13 no.2 pp. 498-505
ISSN:
0975-928X
Subject:
backcrossing,   etc   ; Oryza sativa; genetic improvement; genetic variation; heritability; plant height; rice; seeds;     Show all 8 Subjects
Abstract:
... Two BC₁F₂ populations derived from the cross CO 52 x 3-11-11-2 were evaluated in the present study for fifteen yields, yield contributing characters and quality characters to assess genetic variability, correlation coefficient and path coefficient analyses. Single plant yield, number of productive tillers per plant and alkali spreading value all had higher estimates of PCV and GCV. The high herita ...
DOI:
10.37992/2022.1302.091

8. Genomic Architecture of Yield Performance of an Elite Rice Hybrid Revealed by its Derived Recombinant Inbred Line and Their Backcross Hybrid Populations

Author:
Fan Zhang; Conghe Zhang; Xiuqin Zhao; Shuangbing Zhu; Kai Chen; Guixiang Zhou; Zhichao Wu; Min Li; Tianqing Zheng; Wensheng Wang; Zhi Yan; Qinyong Fei; Zhikang Li; Jinjie Chen; Jianlong Xu
Source:
Rice 2022 v.15 no.1 pp. 49
ISSN:
1939-8425
Subject:
backcrossing,   etc   ; epistasis; genome; genomics; heterosis; hybrids; inbred lines; introgression; phenotype; rice; China;     Show all 11 Subjects
Abstract:
... BACKGROUND: Since its development and wide adoption in China, hybrid rice has reached the yield plateau for more than three decades. To understand the genetic basis of heterosis in rice and accelerate hybrid rice breeding, the yield performances of the elite rice hybrid, Quan-you-si-miao (QYSM) were genetically dissected by whole-genome sequencing, large-scale phenotyping of 1061 recombined inbred ...
DOI:
10.1186/s12284-022-00595-z

9. Comparative QTL analysis in peach ‘Earlygold’ F2 and backcross progenies

Author:
Naveen Kalluri; Iban Eduardo; Pere Arús
Source:
Scientia horticulturae 2022 v.293 pp. 110726
ISSN:
0304-4238
Subject:
backcrossing,   etc   ; DNA; chromosome mapping; color; cultivars; genomics; introgression; leaves; peaches; phenotype; progeny;     Show all 11 Subjects
Abstract:
... Based on detailed maps, DNA sequences and phenotypic data, there is a great deal of information on the genetics and genomics of ‘Earlygold’, a historical peach cultivar from the US. The F₂ between ‘Texas’ almond and ‘Earlygold’ peach (T × E) was used to construct the first saturated peach linkage map that later became the reference map for the Prunus genus. This population and the first backcross ...
DOI:
10.1016/j.scienta.2021.110726

10. Genetic Rescue of the Highly Inbred Norwegian Lundehund

Author:
Claudia Melis; Cino Pertoldi; William Basil Ludington; Carol Beuchat; Gunnar Qvigstad; Astrid Vik Stronen
Source:
Genes 2022 v.13 no.1 pp. -
ISSN:
2073-4425
Subject:
backcrossing,   etc   ; ancestry; dogs; genetic rescue; genetic variation; heterozygosity; homozygosity; outcrossing; single nucleotide polymorphism;     Show all 9 Subjects
Abstract:
... Augmenting the genetic diversity of small, inbred populations by the introduction of new individuals is often termed “genetic rescue”. An example is the Norwegian Lundehund, a small spitz dog with inbreeding-related health problems that is being crossed with three Nordic breeds, including the Norwegian Buhund. Conservation breeding decisions for the (typically) small number of outcrossed individua ...
DOI:
10.3390/genes13010163

11. Genetic mechanism of heterosis for rice milling and appearance quality in an elite rice hybrid

Author:
Hui You; Sundus Zafar; Fan Zhang; Shuangbing Zhu; Kai Chen; Congcong Shen; Xiuqin Zhao; Wenzhong Zhang; Jianlong Xu
Source:
crop journal 2022 pp. -
ISSN:
2214-5141
Subject:
backcrossing,   etc   ; alleles; cultivars; epistasis; grain quality; grain yield; heterosis; introgression; overdominance; phenotype; rice;     Show all 11 Subjects
Abstract:
... Development of hybrid rice with high yield and grain quality is a goal of rice breeding. To investigate the genetic mechanism of heterosis for rice milling and appearance quality in indica/xian rice, QTL mapping was conducted using 1061 recombinant inbred lines (RILs) derived from a cross of the xian rice cultivars Quan9311B (Q9311B) and Wu-shan-si-miao (WSSM), and a backcross F₁ (BC₁F₁) populatio ...
DOI:
10.1016/j.cj.2022.05.001

12. Improving Egyptian Honeybee Characteristics by Crossing with Carniolan Drones using Instrumental Insemination (I) Improve Honeybee Queen Characters

Author:
E.A. Nafea; A.D.M. Yousef; S.H. El-Dereny; Khaled; M.A. Abdel-Hameed; H.M. Mahfouuz; D.S. Farghaly
Source:
Indian journal of ecology 2022 v.49 no.1 pp. 240-245
ISSN:
0304-5250
Subject:
backcrossing,   etc   ; Apis mellifera carnica; ecology; hybridization; insemination; morphometry; queen honey bees; spermatheca; wings;     Show all 9 Subjects
Abstract:
... Apis mellifera, the Western honeybee, is a widespread species that has differentiated into numerous geographical strains or subspecies. These subspecies differ in various characteristics, such as morphology, behavior, and ecology. In the present investigation, different morphometric characteristics of the Carniolan (Apis mellifera carnica) and Egyptian (Apis mellifera lamarckii) subspecies were co ...
DOI:
10.55362/IJE/2022/3510

13. Cross-Resistance to Photosystem II Inhibitors Observed in Target Site–Resistant But Not in Non–Target Site Resistant Common Ragweed (Ambrosia artemisiifolia)

Author:
Martin Laforest; Marie-Josée Simard; Sydney Meloche; Lydia Maheux; François Tardif; Eric Page
Source:
Weed science 2022 v.70 no.2 pp. 144-150
ISSN:
0043-1745
Subject:
backcrossing,   etc   ; Ambrosia artemisiifolia; biotypes; cross resistance; herbicide resistance; horticulture; linuron; metribuzin; progeny; weeds;     Show all 10 Subjects
Abstract:
... The full spectrum of herbicide resistance in a weed can vary according to the mechanistic basis and cannot be implied from the selective pressure. Common ragweed (Ambrosia artemisiifolia L.) is an important weed species of horticultural crops that has developed resistance to linuron based on either target site– or non–target site resistance mechanisms. The objective of the study is to characterize ...
DOI:
10.1017/wsc.2021.78

14. Fine mapping and candidate gene analysis of qGL10 affecting rice grain length

Author:
Tengkui Chen; Lixin Luo; Zhe Zhao; Hui Wang; Chun Chen; Yongzhu Liu; Xinchang Li; Tao Guo; Wuming Xiao
Source:
crop journal 2022 pp. -
ISSN:
2214-5141
Subject:
backcrossing,   etc   ; Oryza sativa; cultivars; genes; haplotypes; loci; promoter regions; rice; selfing; sequence alignment;     Show all 10 Subjects
Abstract:
... Grain size influences the yield and quality of rice (Oryza sativa L.), and grain length is one of the component traits of grain size. In this study, a near-isogenic line LB3 with long grain size was constructed using japonica rice cultivar 02428, with short grain size, as the recipient parent and indica rice cultivar ZYX, with long grain size, as the donor parent, by multi-generation backcrossing ...
DOI:
10.1016/j.cj.2022.06.013

15. HTPdb and HTPtools: Exploiting maize haplotype-tag polymorphisms for germplasm resource analyses and genomics-informed breeding

Author:
Yikun Zhao; Hongli Tian; Chunhui Li; Hongmei Yi; Yunlong Zhang; Xiaohui Li; Han Zhao; Yongxue Huo; Rui Wang; Dingming Kang; Yuncai Lu; Zhihao Liu; Ziyue Liang; Liwen Xu; Yang Yang; Ling Zhou; Tianyu Wang; Jiuran Zhao; Fengge Wang
Source:
Plant communications 2022 v.3 no.4 pp. 100331
ISSN:
2590-3462
Subject:
backcrossing,   etc   ; algorithms; corn; databases; genetic markers; genotype; genotyping; germplasm; heterosis; pedigree; prediction; probability;     Show all 12 Subjects
Abstract:
... Along with rapid advances in high-throughput-sequencing technology, the development and application of molecular markers has been critical for the progress that has been made in crop breeding and genetic research. Desirable molecular markers should be able to rapidly genotype tens of thousands of breeding accessions with tens to hundreds of markers. In this study, we developed a multiplex molecula ...
DOI:
10.1016/j.xplc.2022.100331

16. Marker-Assisted Backcross Breeding for Improving Bruchid (Callosobruchus spp.) Resistance in Mung Bean (Vigna radiata L.)

Author:
Ranran Wu; Qinxue Zhang; Yun Lin; Jingbin Chen; Prakit Somta; Qiang Yan; Chenchen Xue; Jinyang Liu; Xin Chen; Xingxing Yuan
Source:
Agronomy 2022 v.12 no.6 pp. -
ISSN:
2073-4395
Subject:
backcrossing,   etc   ; Callosobruchus; Vigna radiata; agronomy; cultivars; loci; mung beans; phenotypic selection; resistance genes;     Show all 9 Subjects
Abstract:
... Mung bean is vulnerable to bruchids (Callosobruchus spp.), resulting in low quality and losses worldwide. Developing resistant cultivars is the most effective, economical, and eco-friendly way to protect mung bean seeds from the damage of bruchids. Previously, we identified two gene loci that are tightly linked with bruchid resistance, which makes new cultivar development possible using molecular ...
DOI:
10.3390/agronomy12061271

17. Year-round flowering gene e1, a mutation at the E1 locus on rice chromosome 7 and its combination with green revolution gene sd1 in an isogenic cell line

Author:
Motonori Tomita; Yusuke Obara
Source:
Gene 2022 v.815 pp. 146166
ISSN:
0378-1119
Subject:
backcrossing,   etc   ; DNA; cell lines; genes; genetic analysis; genetic background; homozygosity; loci; mutants; rice;     Show all 10 Subjects
Abstract:
... Genetic analysis on the year-round flowering gene e1, which was derived from Kanto No. 79, an induced mutant by Koshihikari gamma-ray irradiated, was conducted through the backcross process to combine e1 and sd1 in the genetic background of Koshihikari. e1 strongly forwarded flowering 14 days earlier than the original variety Koshihikairi. Isogenic Koshihiakri combining e1 and sd1 was developed by ...
DOI:
10.1016/j.gene.2021.146166

18. A Validated Molecular Protocol to Differentiate Pure Wolves, Dogs and Wolf x Dog Hybrids through a Panel of Multiplexed Canine STR Markers

Author:
Rita Lorenzini; Lorenzo Attili; Chantal Tancredi; Rita Fanelli; Luisa Garofalo
Source:
Diversity 2022 v.14 no.7 pp. -
ISSN:
1424-2818
Subject:
backcrossing,   etc   ; Bayesian theory; DNA; ancestry; cost effectiveness; dogs; extinction; genes; hybridization; protocols; wolves; Europe;     Show all 12 Subjects
Abstract:
... The conservation of pure wolf populations in Europe is currently threatened by anthropogenic hybridization with dogs, through potential extinction of local gene pools due to replacement with domestic gene variants. Distinction of wolf–dog hybrids from wild ancestors is essential for development and implementation of management and conservation plans. Morphological traits are rarely helpful, and a ...
DOI:
10.3390/d14070511

19. Different Roles of Introgression on the Demographic Change in Two Snakebark Maples, Acer caudatifolium and A. morrisonense, with Contrasted Postglacial Expansion Routes

Author:
Min-Xin Luo; Yi-Ting Tseng; Jui-Tse Chang; Chien-Ti Chao; Pei-Chun Liao
Source:
Plants 2022 v.11 no.5 pp. -
ISSN:
2223-7747
Subject:
backcrossing,   etc   ; Acer; Bayesian theory; altitude; climate change; demography; genetic variation; introgression; secondary contact; Taiwan;     Show all 10 Subjects
Abstract:
... Hybridization frequently occurs in plant species. With repeated backcross, the introgression may influence evolutionary trajectories through the entry of foreign genes. However, the genetic admixture via hybridization events is often confused with the ancestral polymorphism, especially in closely related species that have experienced similar evolutionary events. In Taiwan, two independent-originat ...
DOI:
10.3390/plants11050644

20. Polygenic control of the wavy coat of the NCT mouse: involvement of an intracisternal A particle insertional mutation of the protease, serine 53 (Prss53) gene, and a modifier gene

Author:
Masayuki Mori; Chang Liu; Takahiro Yoshizawa; Hiroki Miyahara; Jian Dai; Yuichi Igarashi; Xiaoran Cui; Ying Li; Xiaojing Kang; Keiichi Higuchi
Source:
Mammalian genome 2022 v.33 no.3 pp. 451-464
ISSN:
0938-8990
Subject:
backcrossing,   etc   ; cataract; chromosomes; hairs; homozygosity; introns; major genes; mice; modifiers (genes); mutation; proteinases; serine;     Show all 12 Subjects
Abstract:
... The Nakano cataract mouse (NCT) manifests a wavy coat for their first hair as a genetic trait. In this study, we explored the molecular genetic basis of the wavy coat. We revealed by crossing experiments that the wavy coat is controlled by a major gene on chromosome 7 of NCT, homozygosity of which is a prerequisite for developing the wavy coat, and by a gene on chromosome 9 with a minor effect to ...
DOI:
10.1007/s00335-021-09926-9