| 摘要: |
| 应用扩展的Nei·M公式对陕西境内4个黄牛群体毛色位点的表型遗传分化进行了研究。结果表明，各总群平均表型异质度与其选种水平密切相关，各总群的表型遗传分化程度与各畜群规模及分布范围有关，各总群遗传变异来源在系统内和系统间存在明显差异，部分表型遗传分化程度较高的指标可作为未来品系育种的研究对象。 |
| 关键词: 黄牛，总群体，毛色，表型遗传分化 |
| DOI： |
| 分类号:S823.812 |
| 基金项目:国家“七五”攻关课题,高等学校博士点基金资助项目 |
|
| Phenotypic Genetic Differentiation of Coat Clolor Locus in Yellow Cattle |
|
Geng Shemin,Chang Hong,Qin Guoqing,Wu Bin, Chen Youchun,Geng Shemin,Chang Hong,Qin Guoqing,Wu Bin, Chen Youchun,Geng Shemin,Chang Hong,Qin Guoqing,Wu Bin, Chen Youchun
|
| Abstract: |
| The study on phenotypic genetic differentiation of coat color locus in 4 yellow cattle popuiations of Shaanxi was carried out with the extension of Nei.M.formula.The result indicated that the average phenotypic heterogenety degree of every genral population is closely related to its selection level;and the phenotypic genetic differentiation degree of every general population to its population scale and distribution-scope;the origins of every general population genetic variation has a distinct difference both within the system and between systems;some items with higher level of phenotypic genetic differentiation can be used as the subject for the further study in strain breeding. |
| Key words: yellow cattle.general population,coat color,phenotypic genetic differentiation |
