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| 藏鸡群体遗传关系和遗传多样性分析 | |
| 引用本文： | 翟明霞,强巴央宗,李齐发,商鹏,谢庄. 藏鸡群体遗传关系和遗传多样性分析[J]. 南京农业大学学报, 2010, 33(1) |
| 作者姓名： | 翟明霞 强巴央宗 李齐发 商鹏 谢庄 |
| 作者单位： | 1. 南京农业大学动物科技学院,江苏,南京,210095 2. 西藏大学动物科技学院,西藏,林芝,860000 |
| 基金项目： | 农业部948项目(2005-711) |
| 摘 要： | 通过19对微卫星引物对西藏不同地区的藏鸡群体(拉萨、林芝、山南和日喀则)进行遗传多样性分析,统计了藏鸡群体多态信息含量(PIC)、遗传杂合度(H)、F-统计量和群体内遗传距离,并采用UPGMA法构建群体的聚类图,比较藏鸡不同地方鸡群体间的遗传变异。试验结果表明:藏鸡群体多态等位基因数为2～8个,平均有效等位基因数为3.9个,藏鸡群体PIC值分布在0.223 2～0.823 1之间,H值在0.256 8～0.846 0之间,PIC和H平均值分别为0.615 1和0.694 3。在所检测的4个地方群体中,各群体均有较高的遗传多态性和遗传杂合度。哈代-温伯平衡检测结果表明:藏鸡群体大部分微卫星标记均处在不平衡状态。UPGMA法聚类分析显示,拉萨群体和日喀则群体之间的遗传距离较近,林芝群体则与山南群体之间的遗传距离较近,这说明不同地区间藏鸡群体有一定程度的遗传分化。 |
| 关 键 词： | 藏鸡 群体 微卫星 遗传多样性 遗传距离 |
Analysis on the genetic relationship and diversity of Tibetan chicken population |
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| ZHAI Ming-xia,CHAMBA Yang-zong,LI Qi-fa,SHANG Peng,XIE Zhuang. Analysis on the genetic relationship and diversity of Tibetan chicken population[J]. Journal of Nanjing Agricultural University, 2010, 33(1) | |
| Authors: | ZHAI Ming-xia CHAMBA Yang-zong LI Qi-fa SHANG Peng XIE Zhuang |
| Affiliation: | 1*;1.College of Animal Sciences and Technology/a>;Nanjing Agricultural University/a>;Nanjing 210095/a>;China/a>;2.College of Animal Sciences and Technology/a>;Tibet University/a>;Linzhi 860000/a>;China |
| Abstract: | Nineteen microsatellites were used to analyze the genetic diversity of Tibetan chicken population.The genetic variations between and within the populations coming from four different places(Lhasa,Linzhi,Rikeze and Shannan) of Tibetan chicken were calculated by polymorphism information content(PIC),heterozygosity(H),F-statistics and Nei's genetic distance and UPGMA.All loci detected in the study showed that the number of polimorphic alleles ranged from 2 to 8 in total populations with mean value 3.9 per locu... |
| Keywords: | Tibetan chicken population microsatellite genetic diversity genetic distance |
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