玉米粒深性状的数量遗传分析  

Quantitative Genetic Study on the Kernel Depth Traits of Maize

作　　者：张中伟[1] 景希强[2] 丰光[2] 

机构地区：[1]沈阳农业大学,沈阳110866 [2]丹东农业科学院,辽宁凤城118109

出　　处：《玉米科学》2014年第3期8-12,共5页Journal of Maize Sciences

基　　金：国家科技支撑计划"农作物新品种规模化制种关键技术研究与产业化"(2011BAD35B08);国家"863"计划"强优势玉米杂交种的创制与应用"(2011AA10A103)

摘　　要：以两个粒深不同的玉米自交系PHBIM和丹340构成的P1、F1、P2、B1、B2和F26个世代群体为材料，运用主基因与多基因遗传分析方法，研究玉米粒深性状主基因＋多基因遗传规律。结果表明，该性状在B，分离世代群体呈双峰分布，B2和F2分离世代群体呈多峰分布，说明玉米粒深性状属于数量性状，由主基因和多基因控制，且符合两对加性-显性-上位性主基因＋加性-显性-上位性多基因模型（即E-1—0模型），主基因遗传率为56．16％-62．46％，多基因遗传率为11．72％～16．24％，主基因作用对后代遗传方面影响较大。P1, G, P2, B1, B2 and F2 generations of different kernel depth maize classic inbred lines PHBIM and Dan340 were used to study the inheritance of maize kernel depth with major gene＋ploy gene mixed inheritance analy- sis. The results showed that the kernel depth trait presented a two peak distribution in the B1 population, and mul- ti-peak distribution in the Bz and F2 populations, indicated that the trait was quantitative in nature and controlled by major gene and poly gene; the inheritance of maize kernel depth trait fitted the model of two pair of additive-domi- nance-epitasis major gene plus additive-dominance-epitasis polygene （E-1-O Model）; the major gene heritability was between 56.16% - 62.46%; the poly gene heritability was between 11.72% - 16.24%.

关 键 词：玉米 粒深 主基因+多基因 遗传 

分 类 号：S513.035.1[农业科学—作物学]