| 湖北光敏感核不育水稻的遗传研究 |
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| 引用本文： | 张廷璧.湖北光敏感核不育水稻的遗传研究[J].中国水稻科学,1988,2(3):123-128. |
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| 作者姓名： | 张廷璧 |
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| 作者单位： | 武汉大学生物系遗传研究室 |
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| 摘 要： | 湖北光敏感细胞核雄性不育水稻至今最高世代已在20代以上,虽经长期单株选择,群体的不育性仍在分离之中,本试验阐明造成这种分离的原因是这种雄性不育的遗传特性和小育基因所处的遗传背景密切相关。遗传背景不同,育性分离的模式也不相同,因而表现为同一杂交组合后代经连续多代单株选择的株系内仍有育性分离。因为由不育株后代不断分离出可育株,这种雄性不育特性不可能用来生产杂交种子。
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| 关 键 词： | 湖北光敏感核不育水稻 雄性不育性稳定性 遗传 |
| 收稿时间： | 1900-01-01; |
Studies on the Inheritance of the Hubei Photoperiod-sensitive Genic Male-sterile Rice |
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| Zhang Tingbi.Studies on the Inheritance of the Hubei Photoperiod-sensitive Genic Male-sterile Rice[J].Chinese Journal of Rice Science,1988,2(3):123-128. |
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| Authors: | Zhang Tingbi |
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| Abstract: | Since 1973, when the "Hubei Photoperiod-sensitive Male-sterileRice"was discovered, fifteen years have passed. So far, this kind of male-sterile rice has not been used for producing hybrid seeds.
Our studies have shown that this kind of male sterility is inherited in relation to the genetic background of the strain. The mode of segregation of this male sterility was different in various lines of the F_5 or F_7 generation derived from the same crossing. The majority of plants in various lines may be sterile, semi-sterile or fertile.The segregational proportions differ from the Mendelian mode in which selfed progenies of recessive individuals do not segregate.
Plants of the F_5 or F_7 generation derived from the selected male-sterile plants continue segregating in later generations. Because of this segregation in the descendants of recessive individuals this kind of male sterile lines could not be used for hybrid seed production in rice. |
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| Keywords: | Hubei Photoperiod-sensitive Genic Male-sterile Rice Stability of male sterility |
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