| 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∶3 6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-10.064 3，多基因的加性效应为8.637 1，显性效应为-5.179 7。【结论】 爆裂玉米在早代可以加强淀粉含量的选择。 |
| 关键词: 爆裂玉米 主基因+多基因 淀粉含量 遗传效应 |
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| 基金项目:吉林省教育厅科研育种专项（2008（71）号） |
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| Major genes of popcorn starch content plus polygenes analysis of genetic effects |
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| 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∶2and 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. |
| Key words: popcorn major gene plus polygene content of starch hereditary effect |
