中国小型鹅种的遗传多样性分析  

Study on Genetic Diversity of Light-body Type Goose Breeds in China

作　　者：李慧芳[1] 朱文奇[2] 高玉时[1] 葛洪伟[2] 许文娟[1] 

机构地区：[1]中国农业科学院家禽研究所,江苏扬州225003 [2]扬州大学动物科学与技术学院,江苏扬州225009

出　　处：《家畜生态学报》2007年第3期11-14,共4页Journal of Domestic Animal Ecology

基　　金："国家自然科技资源条件平台"资助(2005DKA21101)

摘　　要：采用微卫星标记技术对我国13个小型家鹅群体（莲花白鹅、永康灰鹅、太湖鹅、闽北白鹅、长乐鹅、乌棕鹅、阳江鹅、酃县白鹅、右江鹅、籽鹅、百子鹅、豁眼鹅、伊犁鹅）的遗传多样性进行了分析。结果表明：13个品种的平均杂合度都较高,平均杂合度最高的为太湖鹅,最低的为豁眼鹅,杂合度范围为0.5041~0.7145,13个鹅种资源群体平的均杂合度为0.6132,反映了各鹅种的杂合度都较高,遗传多样性丰富;通过计算DA遗传距离发现各群体的遗传距离较远,分化时间较长;NJ聚类结果将13个中型鹅种聚为三大类,NJ的聚类结果分析与几个鹅品种的地域分布和经济用途的关系并不密切。By using microsatellite markers, the genetic diversities of 13 domestic light-body type goose breeds in china, including Lianhua white, Yongkang grey, Taihu, Minbei White, Changle, Wuzong, Yangjiang, Linxian white, Youjiang, Zi, Baizi, Huo and Yili goose breeds, was analyzed in this experiment. The results showed that the mean heterozygosity （H） was higher in 13 breeds, the highest was Zhedong White, the lowest was Yan, ranged from 0. 4958-0. 6547. The mean heterozygosity of 13 goose breeds was 0. 6132, which reflected the rich diversity. The DA genetic distances suggested the longer differentiation among these goose breeds. 13 light-body type goose breeds were clustered into three groups based on the NJ clustering, and the clustering result was not closed to the distributions of these goose breeds and their utilizations.

关 键 词：鹅 品种 微卫星位点 遗传多样性 

分 类 号：S811.5[农业科学—畜牧学]