| 镰刀形谷(Oryza sativa L.)的粒形遗传及其演化初探 |
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| 引用本文： | 王化琪,王象坤,张培江.镰刀形谷(Oryza sativa L.)的粒形遗传及其演化初探[J].中国农业大学学报,1992(2):137-146. |
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| 作者姓名： | 王化琪 王象坤 张培江 |
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| 作者单位： | 北京农业大学农学系; |
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| 摘 要： | 对不同地理区域、不同粒形的26个亲本、41个 F_1组合、9个 F_2群体的研究表明:①镰刀形谷粒属于隐性核遗传;②粒形受少数几个主基因及许多修饰基因控制。谷粒的镰刀形是由多个修饰基因逐步发生隐性突变积累而成,其中主要是粒长的突变;③西亚的镰刀谷的分化比东亚梗不是在时间上更晚就是在程度上更深;④宽大粒形也可能是后分化类型;⑤在东亚,粒形有随纬度升高而变短、宽的趋势。
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| 关 键 词： | 镰刀形谷 粒形 遗传 演化 |
| 收稿时间： | 1991/1/31 0:00:00 |
Preliminary Study on Inheritance and Evolution of Sickle-shaped Grain in Rice(Oryza sativa L.) |
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| Wang Huaqi Wang Xiangkun Zhang Peijiang.Preliminary Study on Inheritance and Evolution of Sickle-shaped Grain in Rice(Oryza sativa L.)[J].Journal of China Agricultural University,1992(2):137-146. |
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| Authors: | Wang Huaqi Wang Xiangkun Zhang Peijiang |
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| Institution: | Wang Huaqi Wang Xiangkun Zhang Peijiang (Dept.of Agronomy) |
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| Abstract: | Twenty-six rice cultivars from various regional areas and grain shapes,fourty-one F_1 generations and nine F_2 populations was studied.The results indicated that 1:the heredity on shape of sickle-grain belongs in rec- cessive nuclear inheritance;2:the inheritance of grain shape is under control of a few master genes and many modifiers,and the sickle shaped grain might evolved from the accumulation in reccessive mutations of many modifiers,speci- ally in the length of grain;3:the evolution of sickle-shaped r... |
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| Keywords: | sickle-shaped rice grain shape inheritance evolution |
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