油菜籽硫代葡萄糖苷含量的胚、细胞质、母体遗传效应分析

Genetic Analysis of Embryo, Cytoplasm and Maternal Plant Effects for Glucosinolates Content in Rapeseed

采用双子叶作物种子数量性状遗传模型和统计分析方法 ,分析了油菜籽硫代葡萄糖苷 (硫苷 )含量的胚、细胞质和母体植株等不同遗传体系的基因效应以及环境互作效应。结果发现油菜籽硫苷含量的表现主要受制于母体遗传效应 ,其次为细胞质效应 ,胚 (子叶 )效应对其影响较小。不同遗传体系的基因主效应明显大于环境互作效应。硫苷含量的母体显性互作效应较大 ,说明该效应更易受到环境条件变化影响。亲本遗传效应分析的结果表明 ,选用Tower或华双 3号亲本有利于降低杂种后代油菜籽的硫苷含量 ,提高品质改良的效果。胚杂种优势主要表现为增加油菜籽硫苷的含量 。

Effects of embryo, cytoplasm, maternal plant and their environment interaction on glucosinolates content (GSL) in rapeseed was analyzed by using a full genetic model for quantitative traits of seed for diploid plant. It was found that GSL in rapeseed was mainly controlled by maternal and cytoplasmic effects, followed by embryo effects. The main effects of different genetic systems on GSL trait were more important than environment interaction effects. The strong dominance effects on GSL from maternal plant was easy affected by environment conditions. Based on the predicated genetic effects, Tower and Huashuang 3 were better than other parents for reducing GSL in progeny and improving the quality of rapeseed. The maternal heterosis could decrease GSL in rapeseed, and the embryo heterosis was on the contrary.