| 籼粳杂种糯性基因的异常分离及其特征 |
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| 引用本文： | 徐云碧,申宗坦.籼粳杂种糯性基因的异常分离及其特征[J].中国水稻科学,1992,6(2):89-92. |
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| 作者姓名： | 徐云碧 申宗坦 |
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| 作者单位： | 浙江农业大学，杭州310029 |
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| 摘 要： |
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| 关 键 词： | 异常分离 糯性基因 籼粳交杂种 |
| 收稿时间： | 1900-01-01; |
Distorted Segregation of Waxy Gene and Its Characterization in Indica-Japonica Hybrids |
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| Xu Yunbi,Shen Zongtan.Distorted Segregation of Waxy Gene and Its Characterization in Indica-Japonica Hybrids[J].Chinese Journal of Rice Science,1992,6(2):89-92. |
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| Authors: | Xu Yunbi Shen Zongtan |
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| Abstract: | In order to study the segregation distortion of waxy gene, three intersubspecific compatible japonica varieties Xiushui 117, T8340 and 02428, and Taichung 65 and its four isogenic F1-sterile lines were used to cross and backcross with three pairs of waxy and isogenic nonwaxy indica lines Yuanfengzao vs Yuanfengzao Nuo, Guangluai 4 vs Guangluai 4 Nuo and Zhenzhu 19 vs Zhenzhu 19 Nuo. Results indicated that for grains setting on F1 plants and triple cross F1 plants, the segregation of nonwaxy(n) and waxy(w)could be classified into three types, namely, n: w> 3:1, n: w=3:1 and n: w<3:1. Some genetic factor was found to be responsible for the distorted segregation by influencing pollen competition to some extent and its function was independent of F1 sterility gene. Considering that the distorted segregation showed distinct characterizations from the gametophyte genes reported hitherto, the authors postulated that it could be controlled by the interaction between sporophytic and gametophytic genes. |
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| Keywords: | Distorted segregation Waxy gene Indica-japonica hybrids |
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