ZHANG Li,HENG Jixuan,CHEN Jingsheng,et al.Dynamic Analysis of QTLs for Chlorophyll Content in Soybean Based on ‘Changjiangchun 2×Yushuxian 2’ F2 Population[J].HEILONGJIANG AGRICULTURAL SCIENCES,2026,(05):18-24.[doi:10.11942/j.issn1002-2767.2026.05.0018]
基于“长江春2号×渝蜀鲜2号”F2群体的大豆叶绿素含量QTL动态分析
- Title:
- Dynamic Analysis of QTLs for Chlorophyll Content in Soybean Based on ‘Changjiangchun 2×Yushuxian 2’ F2 Population
- 文章编号:
- 4
- Keywords:
- soybean; chlorophyll content; QTL mapping; candidate genes
- 文献标志码:
- A
- 摘要:
- 大豆是我国主要的粮食作物，是食用油和植物蛋白的重要来源。叶绿素通过影响光合速率，从而参与大豆种子发育等生物过程。为推进叶绿素含量的遗传剖析促进分子标记辅助育种，以长江春2号（CJC2）和渝蜀鲜2号（YSX2）杂交获得的F2 186个株系作为定位群体，结合实验室构建的包含675个分子标记的遗传连锁图谱，对24年在始花期（R1）、始荚期（R3）、鼓粒期（R6）3个时期测得的叶绿素含量数据进行QTL定位分析。在3个时期中共检测到32个与叶绿素含量相关的QTL，分布在18个连锁群上，其中有4个QTL区间在两个时期检测到。根据大豆基因组的功能注释信息，在4个区间筛选到2个关于叶绿素代谢的基因，分别为Glyma.01G058600和Glyma.15G215900。其中Glyma.15G215900，是叶绿素降解途径中的关键酶；Glyma.01G058600能够与叶绿素a和类胡萝卜素分子结合，在光能捕获和传递过程中发挥重要作用。
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备注/Memo
收稿日期：2026-01-16