华北农学报 ›› 2001, Vol. 16 ›› Issue (3): 1-5. doi: 10.3321/j.issn:1000-7091.2001.03.001

所属专题: 玉米 生物技术 高影响力文章

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玉米产量性状主基因-多基因遗传效应的初步研究

向道权, 黄烈健, 曹永国, 戴景瑞   

  1. 中国农业大学, 北京 100094
  • 收稿日期:2000-05-20 出版日期:2001-09-28
  • 作者简介:向道权(1967- ),男,博士,现在加拿大进行博士后研究工作。
  • 基金资助:
    国家自然科学基金资助项目(39893350)

A Preliminary Study on Genetic Effect of Maize Yield Component Traits Based on Major Gene and Polygene Mixed Inheritance

XIANG Daoquan, HUANG Liejian, CAO Yongguo, DAI Jingrui   

  1. China Agricultural University, Beijing 100094, China
  • Received:2000-05-20 Published:2001-09-28

摘要: 利用主基因-多基因遗传模型,以玉米杂交组合农大3138的P1,P2,F1和F2∶3家系为材料,联合分析了玉米产量性状的遗传效应。结果表明:穗长、穗粗、穗重和单株粒重是由多基因模型控制;行粒数和千粒重检测到1对完全显性主基因,穗行数和秃顶长存在2对主效基因,而且穗行数的2对主效基因之间存在互作效应。同时对不同方法计算出来的遗传率作了比较,认为存在主效基因的性状遗传率偏低的原因是由于基因的显性作用所致。讨论了不同产量性状的育种对策。

关键词: 玉米产量性状, 主基因-多基因模型, 遗传参数

Abstract: Genetic effects of maize yield component traits were studied by using four populations P1,P2,F1 and F2∶3 based on major gene and polygene mixed model.The results showed that ear length,ear diameter,ear weight and grain yield/plant were controlled by polygenes.Some major genes controlling kernel number,kernel weight,row number and bare tip length were found.Epistatic interaction between two major genes controlling row number was also detected.It was supposed that characters controlled by major gene and polygene model having lower heritabilities was due to dominant effect.Breeding strategies for yield component traits were discussed.

Key words: Maize yield component traits, Major gene and polygene model, Genetic parameter

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引用本文

向道权, 黄烈健, 曹永国, 戴景瑞. 玉米产量性状主基因-多基因遗传效应的初步研究[J]. 华北农学报, 2001, 16(3): 1-5. doi: 10.3321/j.issn:1000-7091.2001.03.001.

XIANG Daoquan, HUANG Liejian, CAO Yongguo, DAI Jingrui. A Preliminary Study on Genetic Effect of Maize Yield Component Traits Based on Major Gene and Polygene Mixed Inheritance[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2001, 16(3): 1-5. doi: 10.3321/j.issn:1000-7091.2001.03.001.

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