| K型小麦雄性不育体系育性恢复的遗传分析 |
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| 引用本文： | 刘曙东,何蓓如,王忠明,奚亚军,严惠芳.K型小麦雄性不育体系育性恢复的遗传分析[J].西北农业学报,1992,1(4):27-30. |
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| 作者姓名： | 刘曙东 何蓓如 王忠明 奚亚军 严惠芳 |
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| 作者单位： | 西北农业大学 陕西杨陵 712100;西北农业大学 陕西杨陵 712100;西北农业大学 陕西杨陵 712100;西北农业大学 陕西杨陵 712100;西北农业大学 陕西杨陵 712100 |
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| 摘 要： | 选用两个K型小麦雄性不育系K7859A和K80(6)A分别与6个恢复系杂交,F1自交并与母本不育系回交得到12个F2和回交一代群体.分离群体的育性反应可划分成完全可育、中度可育、低度可育和完全不育4级,比例分别为10:3:2:1和1:1:1:1.结果表明,K型小麦雄性不育体系的育性恢复受两对非等效基因控制,恢复作用较强的基因定为Rfk1,较弱者定为Rfk2.它们的显性作用都不完全,具有累加效应,基因型为Rfk1rfk1Rfk2rfk2时即表现完全可育.
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| 关 键 词： | 小麦 育性恢复 遗传 三系矾套 |
| 收稿时间： | 1992/4/21 0:00:00 |
| 修稿时间： | 1992/8/17 0:00:00 |
GENETIC ANAYSIS OF MALE-FERTILITY RESTORATION IN WHEAT WITH AE. KOTSCHYI CYTOPLASM |
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| Liu Shudong,He Peiru,Wang Zhongming,Xi Yajun and Yan Huifang.GENETIC ANAYSIS OF MALE-FERTILITY RESTORATION IN WHEAT WITH AE. KOTSCHYI CYTOPLASM[J].Acta Agriculturae Boreali-occidentalis Sinica,1992,1(4):27-30. |
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| Authors: | Liu Shudong He Peiru Wang Zhongming Xi Yajun and Yan Huifang |
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| Institution: | Nothwestern Agricultural University Yangling, Shaanxi 712100;Nothwestern Agricultural University Yangling, Shaanxi 712100;Nothwestern Agricultural University Yangling, Shaanxi 712100;Nothwestern Agricultural University Yangling, Shaanxi 712100;Nothwestern Agricultural University Yangling, Shaanxi 712100 |
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| Abstract: | Two male-sterile lines of wheat (with Ae.kotschyi Cytoplasm),K7859A and K80(6) A, were crossed with six R-lines, and twelve F2 and BC1F1 generations were obtained by F1 plants selfing and from the crosses of F1 as male with the maternal parent respectively.The ratio of complete fertility: middle fertility:low fertility:sterility in F2 was 10:3:2:1,and in BC1F1 was 1:1:1:1.The results indicate that the fertility restoration involves two major genes.The restoring effect of these genes is unequal,incompletely dominant, and acts in a additive manner.The stronger restorer-gene was symbolized as Rfk1 and the weaker one as Rfk2.The plant with genotype of Rfk1rfk1Rfk2rfk2 is complete male fertility. |
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| Keywords: | Hybrid wheat Male-sterile line Ae kotschyi Restorer-gent Additive effect |
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