| 上位性及其在遗传育种研究中的应用 |
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| 引用本文： | 张文英,程君奇,朱军,吴为人.上位性及其在遗传育种研究中的应用[J].生物信息学,2004,2(2):39-41,50. |
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| 作者姓名： | 张文英 程君奇 朱军 吴为人 |
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| 作者单位： | 浙江大学生物信息学研究所,浙江,杭州,310029 |
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| 摘 要： | 上位性引入遗传学已有一个多世纪,直到近些年才受到广泛关注,成为复杂性状遗传研究体系的一个重要组成部分。上位性可分为统计上位性和功能上位性两类,前者具有群体特性,后者属于基因型现象。分子标记技术是研究上位性的一个有力工具,理论与实验研究证实上位性在动植物数量性状的表现中具有重要作用。上位性在作物育种中的应用因作物的繁殖方式,育种方法等不同而异,上位性是杂种优势形成的重要遗传基础。
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| 关 键 词： | 上位性 遗传学 育种 数量性状基因座 |
| 文章编号： | 1672-5565(2004)-02-0009-04 |
| 修稿时间： | 2004年4月10日 |
Epistasis and its application in genetics and breeding |
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| ZhANG Wen - Ying,CHENG Jun - Qi,ZHU Jun,WU Wei - Ren
Institute of Bioinformatics,Zhejiang Univeristy,Hangzhou ,China.Epistasis and its application in genetics and breeding[J].China Journal of Bioinformation,2004,2(2):39-41,50. |
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| Authors: | ZhANG Wen - Ying CHENG Jun - Qi ZHU Jun WU Wei - Ren
Institute of Bioinformatics Zhejiang Univeristy Hangzhou China |
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| Affiliation: | ZhANG Wen - Ying,CHENG Jun - Qi,ZHU Jun,WU Wei - Ren
Institute of Bioinformatics,Zhejiang Univeristy,Hangzhou 310029,China |
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| Abstract: | Conception and analytical methods of epistasis and its application in genetics and breeding were reviewed. Epistasis was introduced into genetics in 1909, however, it was not received enough attention untill recent years, and it became an indiscerptible part of genetic research system upon complex traits. Epistasis includes statistical epistasia and functional epistasis, the former is a population phenomenon whereas the latter is a genotypic phenomenon. Molecular marker technology is a powerful tool in studying epistasis, evidence from both theoretic researches and empirical experiments have proved that epistasis is important for performance of main quantitative traits. Implications of epistasis for plant breeding methodology should depend on seed production and the methods for breeding. Epistasis is an important genetic basis for basis for the yielding of heterosis crops. |
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| Keywords: | epistasis genetics breeding Quantitative trait locus |
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