【摘要】 应用植物数量性状主基因+多基因混合遗传模型,以爆裂玉米杂交组合吉爆902（吉812×吉704）的P₁、F₁、P₂、B_1:2、B_2:2和F_2:36个家系世代群体为材料,对爆裂玉米叶片叶绿素含量进行多世代联合分析。结果表明:叶绿素含量受1对加性-显性主基因+加性-显性-上位性多基因控制遗传。主基因加性效应为d=-0.0247,主基因显性效应值为h=0.0511。主基因存在显性效应,该组合的叶绿素含量存在杂种优势。B_2:2和F_2:3家系群体主基因遗传力分别为55.28%和42.12%,多基因遗传率分别为26.36%和34.11%。更多还原

【Abstract】 Six populations(P₁,F₁,P₂,B_{1 2},B_2:2 and F_{2 3} )of popcorn hybridized combination Jibao 902（Ji 812×Ji 704） were used as test materials,and their leaves’ chlorophyll contents were jointly analyzed according to the major gene and polygene blending inheritance model of plant quantitative traits.The results showed that the chlorophyll content was genetically controlled by a pair of additive-dominant major genes and additive-dominant-epistatic polygene.The additive effect value and dominant effect value of the major genes were d=-0.0247 and h = 0.0511,respectively.The major gene had a dominant effect,and the combination had heterosis in chlorophyll content.The B_{2 2} and F_2:3 populations were respectively 55.28%and 42.12%in the major gene heritability,and respectively 26.36%and 34.11%in the polygene heritability.更多还原