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Journal article
Genome-wide atlas of loci involved in chromosomal recombination in common wheat
BMC plant biology, Vol.24(1), 1124
2024
PMID: 39587535
Abstract
Chromosomal recombination is a pivotal biological mechanism for generating novel genetic diversity, essential for plant breeding and genetic research endeavors. This study investigated the genetic loci involved in chromosomal recombination through analyzing five published recombinant inbred line (RIL) populations and four double haploid (DH) populations. Great phenotypic variations in recombination frequency were observed between populations and chromosomes. A total of 29 QTL were mapped, which were predominantly located on the B genome. Notably, one QTL on chromosome 6AL was identified from two RIL populations and one QTL on chromosome 3B was identified in both RIL and DH populations. Additionally, a map delineating recombination hotspot regions was developed, and these regions were observed on all chromosomes except for 6B. Recombination hotspot regions tended to locate on chromosomes 1D, 3A, 3B, 6A, and 7D compared to chromosomes 1B, 5B, and 6B. In addition, most hotspot regions were located at chromosome termini, with some clustering in specific regions. Besides genetic factors, the study also explored the impact of chip size and population type on the number of identifiable chromosomal recombination events. Overall, this work improves our understanding of the molecular mechanisms for the chromosomal recombination rate and may contribute to the optimization of breeding strategies in wheat.
Details
- Title
- Genome-wide atlas of loci involved in chromosomal recombination in common wheat
- Authors/Creators
- Yanchun Peng - Ministry of Agriculture and Rural AffairsXinru Lyu - Qingdao Agricultural UniversityDengan Xu - Qingdao Agricultural UniversityZunjie Wang - Ministry of Agriculture and Rural AffairsXianchun Xia - Institute of Crop SciencesYuanfeng Hao - Institute of Crop SciencesHongya Wu - Ministry of Agriculture and Rural AffairsWujun Ma - Murdoch University, Centre for Crop and Food Innovation
- Publication Details
- BMC plant biology, Vol.24(1), 1124
- Publisher
- BioMed Central Ltd unless otherwise stated. Part of Springer Nature.
- Number of pages
- 10
- Grant note
- 31701506 / the National Natural Science Foundation of China BE202133 / the Key R&D Projects in Jiangsu Province: Breeding of New Varieties of High-Quality Green Weak Gluten Wheat 2024ZW002 / Open Research Fund of Anhui Provincial Key Laboratory of Crop Quality Improvement U22A20457 / the Joint Funds of the National Natural Science Foundation of China
- Identifiers
- 991005720268107891
- Copyright
- © The Author(s) 2024.
- Murdoch Affiliation
- Food Futures Institute
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.4 Crop Science
- 3.4.96 QTL
- Web Of Science research areas
- Plant Sciences
- ESI research areas
- Plant & Animal Science