【摘要】 以朱军提出的混合模型方法,采用亲本、F1、F23个世代,分析大豆异黄酮含量的胚效应、细胞质效应和母体效应。结果表明,大豆种子中异黄酮含量同时受到胚遗传效应和母体遗传效应的控制,并且母体效应的作用要高于胚遗传效应。胚显性方差、母体加性方差和母体显性方差均达到显著水平。在胚和母体两套遗传体系中,加性效应方差占总遗传方差的18.8%,胚显性方差与母体显性方差之和占总遗传方差的81.2%。胚广义遗传率为17.3%,母体效应的广义遗传率为33.6%。异黄酮含量与株高和单株产量的正向基因型协方差、异黄酮含量与单株节数的负向基因型协方差达到显著水平。异黄酮含量与株高和单株产量间主要以母体显性协方差为主,异黄酮含量与单株节数间主要以胚加性协方差为主。更多还原

【Abstract】 Five parents and their F₁,F₂ were used to analyze embryo effect,cytoplasm effect and maternal gene effect on isoflavone content of soybean by the mixed genetic model proposed by Zhu（1997）.The results indicated isoflavone content was controlled by embryo and maternal plant.Maternal effect was larger than embryo effect.The ratio of sum of additive effect variance to total genetic variance were 18.8%,and that of sum of dominance effect variance to total genetic variance were 81.2%.The broad-sense heritabilities of embryo and maternal effects were 17.3% and 33.6%,respectively.The covariance between isoflavone content and plant height,isoflavone content and yield per plant were positively significant at 0.01 level,and the covariance between isoflavone content and number of joints per plant were negatively significant at 0.01 level.更多还原