小尾寒羊与滩羊系统地位的模糊性模式判别  

The discriminant for fussy pattern of Small-Tailed Han Sheep and Tan sheep's systemic status

作　　者：杜垒[1] 常洪[2] 角田健司 刘太宇[1] 

机构地区：[1]郑州牧业工程高等专科学校畜牧工程系,河南郑州450011 [2]扬州大学动物科技学院,江苏扬州225009 [3]昭和大学医学部

出　　处：《西北农林科技大学学报（自然科学版）》2005年第8期51-57,共7页Journal of Northwest A&F University(Natural Science Edition)

基　　金：国家自然科学基金国际合作项目(30213001);河南省科技攻关重大项目(0422011100)

摘　　要：用系统地位已知的16个地方绵羊群体10个结构基因座位上的33个等位基因频率,验证了中亚以东南绵羊群体血统地位判别式,并对滩羊和小尾寒羊基因频率抽样估计值的可靠性、精确度进行了统计学分析和认定,分别以“一般贴近度”和“遗传贴近度”模糊性判别模式,根据滩羊和小尾寒羊的相应基因频率数据对两者的系统地位作了判别。结果表明,滩羊和小尾寒羊在血统上归属于“蒙古羊”集团,这些都符合史料记载。本研究结果再次确认“遗传贴近度”模糊性判别模式适用于地方绵羊系统地位的判别,也适合于对其他种群的血统研究,以及对微卫星等其他遗传标记的血统研究。Based on the information using the 33 allele frequencies on 10 loci 16 native sheep populations ,whose systematic status have been known ,the discriminant of extractional status of sheep population in Middle and South East Asia were detected ,the reliability ,precision of sampling valuation of the genetic frequencies were analyzed and cognazed. Then the genetic frequencies of Tan sheep and Small Tailed Han sheep were used to discrimint their systematic stastus with two discriminant of fussy pattern respectively, General approach degree and Genetic approach degree. The results showed that：Tan sheep and Small Tailed Han sheep are thought to belong to “Mongolia sheep” group,which corresponds with the historical _records exactly. At the same time ,the research confirms again that the discriminant of fussy pattern based on Genetic approach degree can be suited to discrimint the local sheep population＇s extractional status. Of course ,it may be used to research other breed＇s extraction and other genetic markers extraction too ,such as microsatellite.

关 键 词：小尾寒羊 滩羊 血统 遗传贴近度 模式判别 

分 类 号：S826.2[农业科学—畜牧学]