大豆不同生育时期叶绿素含量QTL的定位及其与产量的关联分析

被引:24
作者
崔世友
喻德跃
机构
[1] 南京农业大学国家大豆改良中心/作物遗传与种质创新国家重点实验室
基金
国家自然科学基金重大项目;
关键词
大豆; 叶绿素含量; 产量; 数量性状;
D O I
暂无
中图分类号
S565.1 [大豆];
学科分类号
摘要
利用来自波高×南农94-156的151个RI家系检测与4个不同生育时期叶绿素含量(累积量、净增量)有关的QTL,并分析其与籽粒产量、表观生物学产量和表观收获指数的关系。结果表明,与叶绿素累积量有关的QTL位于D1a+Q、F、G、H、L和M连锁群上,每个QTL可解释表型变异的6.9%-23.4%。V6和R2期没有检测到2个年份均表达的QTL,而在R4期检测到4个在2个年份均表达的QTL(qccF.1、qccG.2、qccH.1和qccM.1),R6期仅检测到1个QTL(qccH.1)在2个年份均表达,该QTL在R4也表达。与叶绿素含量净增量有关的QTL位于B2和L连锁群上,在V6-R2时期没有检测到与叶绿素净增量有关的QTL,在B2和L连锁群上的两个QTL(qccB2-1.1和qccL.1)在R2-R4和R4-R6时期均表达,qccB2-1.1可解释表型变异的6.4%-9.8%,而qccL.1所解释表型变异达29.5%-31.3%。但这两个QTL在R2-R4和R4-R6时期表达的性质不同,且与2年均表达的籽粒产量QTL共位。这印证了生育后期叶绿素含量与籽粒产量间存在的极显著正相关。
引用
收藏
页码:744 / 750
页数:7
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