大豆油酸含量相关QTL间的上位效应和QE互作效应

Epistatic Effects of QTLs and QE Interaction Effects on Oleic Acid Content in Soybean

利用Charleston×东农594重组自交系构建的SSR遗传图谱，并运用混合线性模型方法对2007～2009年的大豆油分含量进行QTL定位，并作加性效应，加性×加性上位互作效应及环境互作效应分析。共检测到7个QTL，有6个与环境互作，位于A1、Dla和Dlb连锁群上，解释该性状总变异的50．18％，与环境互作贡献率为11．78％。另检测到12对影响油酸含量的加性×加性上位互作效应的QTL，分布于14个连锁群之间。

In this study, QTL of soybean oleic acid content in three years was analyzed with a recombination inbred lines （RIL） population derived from Charleston × Dongnong 594 by mixed linear model approach. Seven QTL with additive effects, including 6 QTLs interacting with environment for oleic acid content were mapped in the linkage groups A1, Dl a and D1 b, the general phenotypic variation was 50.18%, and the general contribution was 11.78% from QTL× environment interaction. Twelve QTL pairs with epistatic effects for oleic acid content in the RIL were detected among 14 linkage groups.