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本研究主要利用BF3109/YNT047群体的杂种后代F1构建的一个由148个家系组成的重组自交系群体(F2:4;F2:5)进行种子贮藏物质动用量、物质利用率性状遗传分析。结果表明:在凤阳和海南单环境分析中,分别检测到控制种子原始重量、种子物质动用量和种子物质利用率等3个目标性状17、18个非条件QTL和11、15个条件QTL以及5个上位性QTL。其中q WMSR4.2和q SRUE2是两种环境分析中均检测到的主效QTL,能解释表型变异的20.52%~36.38%,增效基因均来源于YNT047。为提高多基因控制的数量性状,育种上可采用逐步杂交的方式将含有优良基因家系聚合到一个品种中。
In this study, a recombinant inbred line population consisting of 148 pedigrees (F2: 4; F2: 5) was constructed by using the progeny F1 of the BF3109 / YNT047 population for genetic analysis of seed storage material use and material utilization traits. The results showed that in the single-environment analysis of Fengyang and Hainan, 17, 18 non-conditional QTLs and 11, 15 conditional QTLs were detected for controlling 3 target traits such as seed’s original weight, seed material’s utilization and seed material’s utilization rate Five epistatic QTLs. Among them, q WMSR4.2 and q SRUE2 were the major QTLs detected in the two environmental analyzes, accounting for 20.52% -36.38% of the phenotypic variation. The synergistic genes were all derived from YNT047. To improve the quantitative traits controlled by multiple genes, breeding can be carried out by means of a step-by-step hybridization of families with excellent genes into one variety.