| 棉花光A不育系的遗传鉴定及利用研究 |
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| 引用本文： | 张相琼,张东铭,等.棉花光A不育系的遗传鉴定及利用研究[J].西南农业大学学报,1999,21(2):144-148. |
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| 作者姓名： | 张相琼 张东铭 |
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| 作者单位： | 四川省农科院棉花研究所 |
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| 摘 要： | 对墨西哥半野生棉转育后代中的显性无短绒具长绒和隐性核不育光A材料进行遗传鉴定表明，光A不育性受msc1基因控制。控制光籽特性基因与显性光籽N1为非等位基因。光A光籽纯合态为低衣分，杂合态为高衣分，在遗传背景相同下，光籽组合产量优于毛籽组合。但因光A纯合态的低衣分，其亲本繁殖和杂交制种时皮棉产量降低，故光A不育系在杂种优势中的利用有优势又有劣势。
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| 关 键 词： | 棉花 隐性核雄性不育 遗传鉴定 利用 光A不育系 杂种优势利用 |
GENETIC IDENTIFICATION AND UTILIZATION OF GUANG A A MALE STERILE LINE OF COTTON |
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| Zhang Xiangqiong, Zhang Dongming, Zhou Hongjun Wang Junming, Mu Fangsheng.GENETIC IDENTIFICATION AND UTILIZATION OF GUANG A A MALE STERILE LINE OF COTTON[J].Journal of Southwest Agricultural University,1999,21(2):144-148. |
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| Authors: | Zhang Xiangqiong Zhang Dongming Zhou Hongjun Wang Junming Mu Fangsheng |
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| Abstract: | Guang A, a recessive genetic male sterile line with dominant fuzzless-ness selected from transferred progenies of Gossypium hirsutum var. mexicanum, was used for genetic identification. Its sterility was found to be controlled by msc 1 and the gene responsible for its naked-seeded-ness appeared to be non-allelic to N 1. Guang A had high lint percentage when it was homozygous for naked-seededness and low lint percentage when it was heterozygous for naked-seededness. With similar genetic background, lint yield in combinations of the naked-seeded genotype was higher than that in combinations with the hairy-seeded genotype. However, Guang A has disadvantages as well as advantages in the utilization of heterosis because of its low lint percentage in parent propagation and hybrid seed production. |
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| Keywords: | cotton male sterility inheritance-certification utilization |
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