| 蒙古羊的群体结构和遗传多态 |
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| 引用本文： | 张立岭.蒙古羊的群体结构和遗传多态[J].内蒙古农业大学学报(自然科学版),1995(3). |
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| 作者姓名： | 张立岭 |
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| 作者单位： | 内蒙古农牧学院动物科学系 |
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| 摘 要： | 用随机遗传漂变理论和扩散方程方法分析了蒙古羊的形成发展过程和不同地域群体的遗传多态现象，包括群体有效大小、世代间隔、世代重叠程度、角型、毛色、尾型的遗传变异及其成因。分析结果表明蒙古羊种群总体上属于大群体，群体有效大小约为１００万只，但由于分成许多小群体，因而使群体有效大小明显缩小，基因的随机遗传漂变作用导致各群体中广泛存在遗传多态并且特长期存在。
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| 关 键 词： | 蒙古羊，群体结构，遗传多态，随机遗传漂变，扩散方程，群体有效大小 |
The Population Structure and Polymorphism of Mongolian Sheep |
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| Zhang Liling.The Population Structure and Polymorphism of Mongolian Sheep[J].Journal of Inner Mongolia Agricultural University(Natural Science Edition),1995(3). |
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| Authors: | Zhang Liling |
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| Abstract: | The genetic polymorphism of horn form,fleece colour,tail types,population structure in Mongolian sheep were researched by random drift theory anddiffusion equatious methods. The effective poptilation size of Mongolian sheep in aboutone million,but it was subdivided into many small local populations.Thepolymorphisms among the local population came from random drift and selections,andwill be continued for a long time. |
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| Keywords: | Mongolan sheep population structure genetic ploymorphism random drift diffussion equation effective poplulation size |
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