| 水稻(Oryza sativa L.)双胚苗遗传学的研究 |
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| 引用本文： | 黎垣庆,袁隆平.水稻(Oryza sativa L.)双胚苗遗传学的研究[J].作物学报,1990,16(2):176-182. |
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| 作者姓名： | 黎垣庆 袁隆平 |
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| 作者单位： | 湖南杂交水稻研究中心 |
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| 摘 要： | APⅠ、APⅡ、APⅢ和 APⅣ四个双胚苗品系分别具有16.1%、23.4%、32.4%和5.0%的双苗率,双苗中有一个中胚轴和两个中胚轴的两种类型。以双胚苗为母本与显性紫色稻杂交,F1出现1.8—3.8%的绿色双苗或单苗,因此,四个双胚苗品系中可能存在低频率的无融合生殖。双胚苗是可遗传的,受两对隐性基因控制,而双苗频率的高低则受修饰因子的
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| 关 键 词： | 双胚苗 无融合生殖 |
| 收稿时间： | 1989-09-12 |
| 修稿时间： | 1990-01-02 |
Studies on Genetics of Twin Seedlings in Rice (Oryza sativa L.) |
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| Li Yuanqing Yuan Longping.Studies on Genetics of Twin Seedlings in Rice (Oryza sativa L.)[J].Acta Agronomica Sinica,1990,16(2):176-182. |
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| Authors: | Li Yuanqing Yuan Longping |
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| Institution: | Hunan Hybrid Rice Research Center |
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| Abstract: | Four selected lines of rice,designated as API,APⅡ,APⅢ,and APⅣ,exhibited the lines of twin seedlings.The percentages of twin seedlings of them were16.1%,23.4%,32.4% and 5.0% respectively.There were two types of twin seedlings,those with only one-mesocotyl and those with two-mesocotyls.4 crosses we |
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| Keywords: | Twin seedlings Apomixis |
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