【摘要】 【目的】研究爆裂玉米淀粉含量的遗传方式,为爆裂玉米育种和分子标记辅助选择(MAS)提供理论基础。【方法】以爆裂玉米杂交组合吉爆902(吉812×吉704)的P1、F1、P2、B1∶2、B2∶2和F2∶36个家系世代群体为材料,应用植物数量性状主基因+多基因混合遗传模型,对其淀粉含量进行多世代联合分析。【结果】爆裂玉米淀粉含量由1对加性主基因+加性-显性多基因控制遗传。该杂交组合的B1∶2、B2∶2和F2∶3群体淀粉含量的主基因遗传率为13.86%～82.55%,多基因遗传率为2.91%～70.51%。主基因的加性效应为-10.0643,多基因的加性效应为8.6371,显性效应为-5.1797。【结论】爆裂玉米在早代可以加强淀粉含量的选择。更多还原

【Abstract】 [Objective] Burst starch content of corn genetic manner,popcorn breeding and molecular marker-assisted selection(MAS)were studied to provide theoretical basis.[Method] With quantitative traits of plants of major genes plus polygenes mixed genetic model to popcorn hybrids Jibao 902(JI 812 × JI 704)and P1,F1,P2,B1∶2,B2∶2 and F2∶3 6 Ge family generations groups as materials,the starch content of multiple generations was jointly analyzed.[Result] The popcorn starch content showed a pair of additive major genes plus additive-dominant genetic control of multiple genes of the hybrid combination of B1∶2,B2∶2 and F2∶3 groups,the main genetic starch rate was 13.86%-82.55%,multi-gene genetic rate of 2.91%-70.51%.Major gene additive effect was-10.064 3,multi-gene additive effect 8.637 1,dominant effect-5.179 7.[Conclusion] Popcorn in the early generation selection can enhance the starch content.更多还原