| 玉米穗位高的主基因+多基因的遗传模型分析 |
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| 引用本文： | 王铁固,马娟,张怀胜,陈士林.玉米穗位高的主基因+多基因的遗传模型分析[J].贵州农业科学,2012,40(4):10-13. |
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| 作者姓名： | 王铁固 马娟 张怀胜 陈士林 |
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| 作者单位： | 河南科技学院生命科技学院,河南新乡,453003 |
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| 基金项目： | 河南省科技攻关项目，河南科技学院高层次人才启动项目 |
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| 摘 要： | 为了探索玉米穗位高的遗传规律,以玉米杂交组合PH4CV×昌7-2(组合I)和PH6WC×7873(组合Ⅱ)的六世代(P1,P2,F1,B1,B2,F2)为材料,在春播和夏播环境下,研究了玉米穗位高的主基因+多基因的遗传规律。结果表明:春播条件下,组合Ⅰ的穗位高符合E-3模型,组合Ⅱ符合E-1模型;夏播环境下,组合I的穗位高符合D-3模型,组合Ⅱ符合C-0模型。结论:春播环境下,组合Ⅰ和组合Ⅱ的穗位高均以主基因遗传为主,可以采用单交重组或简单回交转育方法进行改良;夏播环境下,组合Ⅰ和组合Ⅱ的穗位高均表现为多基因遗传,可以采用聚合回交或轮回选择方法来累积增效基因,提高选择效率。
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| 关 键 词： | 玉米 穗位高 主基因-多基因 遗传模型 遗传规律 |
Analysis of Major Gene Plus Polygenes Genetic Model for Ear Height of Maize |
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| WANG Tie-gu
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MA Juan
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ZHANG Huai-sheng
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CHEN Shi-lin.Analysis of Major Gene Plus Polygenes Genetic Model for Ear Height of Maize[J].Guizhou Agricultural Sciences,2012,40(4):10-13. |
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| Authors: | WANG Tie-gu MA Juan ZHANG Huai-sheng CHEN Shi-lin |
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| Institution: | (School of Life Science and Technology,Henan Institute of Science and Technology,Xinxiang,Henan 453003,China) |
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| Abstract: | P1,P2,F1,B1,B2 and F2 generations of PH4CV Chang 7-2(cross I) and PH6WC×7873(cross Ⅱ) were sowed in spring and summer respectively to study the inheritance of major genes plus polygenes in ear height.The results showed that the genetic model of cross I and cross Ⅱunder spring sowing accorded with E-3 model and E-1 model,and the genetic model of cross I and cross Ⅱunder summer sowing accorded with D-3 model and C-0 model respectively.The ear height of cross I and crossⅡ under spring sowing should be improved by single cross or simple backcross pattern because their ear height was mainly controlled by major genes.The ear height of cross I and crossⅡ under summer sowing should be improved by repeated backcross or recurrent selection pattern because their ear height was mainly controlled by polygenes. |
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| Keywords: | maize ear height major gene plus polygenes genetic model inheritance |
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