大豆科学2025，Vol.44Issue(5)：168-176,9.DOI:10.11861/j.issn.1000-9841.2025.05.0168
大豆分枝数QTL定位及分子机制研究进展
Research Progress on QTL Mapping and Molecular Mechanism of Soybean Branch Number
摘要
Abstract
Soybean is a critical grain and oilseed crop.Branch number is a pivotal factor determining the plant architecture and yield potential of soybean.Branch number synergistically influenced by various factors such as external light signals,interal gene regulation,and hormone signals,is a complex quantitative trait.Thus,exploring quantitative trait loci(QTLs)related to branch number of soybean and analyzing the molecular regulation mechanism of related genes can deepen our fundamental understanding of soybean branching development.Additionally,this research can provide valuable genetic resources for breeding soybean varieties with ideal plant architectures and enhanced yields.In this review,we summarize the QTLs information and the research progress on the function of gene that associated with soybean branch number reported in the literature.A total of 163 QTLs for branch number were identified,with stable QTLs primarily distributed on soybean chromosomes 4,6,10,18,and 19 across multiple genetic populations and environmental conditions.Meanwhile,we reviewed the research progress of related genes regulating the number of soybean branch.The molecular regulatory pathways of soybean branch number mainly include:Dt2-GmAGL22,GmSOC1-GmAP1s,miR156b-SPL-WUS and hormone pathways.Through this review,we aim to provide a theoretical basis for optimizing soybean plant type for increasing crop yield.关键词
大豆/分枝数/QTL/候选基因/株型结构/产量Key words
Glycine max(L.)Merr./branch number/QTL/candidate genes/plant architecture/yield引用本文复制引用
黄鑫雅,陈洁敏,孔令平..大豆分枝数QTL定位及分子机制研究进展[J].大豆科学,2025,44(5):168-176,9.基金项目
国家自然科学基金项目(32372193,31901569). （32372193,31901569）
