| 胡洋，崔学宇，郑雷雷，杨伟光.玉米穗部性状遗传分析[J].广东农业科学,2014,41(7):12-15 |
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玉米穗部性状遗传分析 |
| Genetic analysis of maize ear characters |
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| DOI： |
| 中文关键词: 玉米 穗部性状 上位性效应 测验 |
| 英文关键词: maize ear characters epistasis |
| 基金项目:国家“863”计划项目（2011AA10A103）；吉林省
科技发展计划项目（20116030）；科技部农业科技成果转化项目
（2011GB2B100006）；国家科技计划项目（2011BAD35B01）；农业
部“948”计划项目（2011-G1-21）；吉林省财政厅育种项目（20110 |
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| 摘要点击次数: 1391 |
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| 中文摘要: |
| 以两组PA 种质改良系J1255、J1401 与S122 杂交所形成的6 个世代为试验材料，采用郭平仲提出的世
代平均数分析方法对玉米穗长、穗粗、籽粒长、百粒重、穗粒重进行了遗传分析。结果表明；玉米穗长与百粒重的遗传
受基因的加性效应为主，显性效应次之；穗粗、籽粒长和穗粒重的遗传受基因的显性效应作用为主，加性效应次之；
上位性效应明显存在于穗部各性状的世代遗传变异中，其中，对于百粒重的遗传变异，上位性效应明显大于显性效
应，并以加性伊加性的上位性互作为主。 |
| 英文摘要: |
| Genetic analysis for ear length, ear diameter, seed length,100 -grain weigth and yield per ear were
conducted by using the method of components of means, two improved maize inbreds of PA group (J1255, J1401) were
crossed with one tester(S122) witch traited by using six generations as materials. The results showed that the heredity of ear
length and 100-grain weigth was dominated by additive affect, epistasis effect also existed significantly. The heredity of ear
diameter, seed length and yield per ear were dominated by dominant effect, additive affect also existed significantly. The
heredity of ear traits of all the crosses were dominated by epistasis effect. The additive effect of major genes for 100-grain
weigth was greater than epistasis effect, and the dominance伊dominance was greater. 曰tes |
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