| 我国十个鹅品种的遗传结构及遗传分化研究 |
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| 引用本文： | 李慧芳,宋卫涛,徐文娟,朱文奇,汤青萍,陈宽维.我国十个鹅品种的遗传结构及遗传分化研究[J].家畜生态,2009(2). |
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| 作者姓名： | 李慧芳 宋卫涛 徐文娟 朱文奇 汤青萍 陈宽维 |
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| 作者单位： | 中国农业科学院家禽研究所江苏省家禽遗传育种实验室; |
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| 基金项目： | 国家科技支撑计划(2008BADB2B08);;国家科技基础条件平台资助项目(2005DKA21101);;江苏省科技服务平台项目(BM2008170) |
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| 摘 要： | 利用多态性丰富的15个微卫星标记对列入国家级畜禽保护名录的10个鹅品种群体遗传结构、遗传分化及基因流进行研究。结果表明:10个鹅群体总近交系数(Fit)为-0.044,群体内近交系数(Fis)为-0.408,群体间基因分化系数(Fst)为0.257,3个固定指数只有Fst达到极显著水平(P<0.01)。鹅群体内近交系数(Fis)均为负值。各个鹅群体间,豁眼鹅与伊犁鹅的基因流值最小(Nm=0.416),四川白鹅与伊犁鹅间基因流值最大(Nm=1.430)。结合基因流和STRUCTURE分析结果,10个地方鹅品种可划分为四类:兴国灰鹅、豁眼鹅和太湖鹅为一类,四川白鹅、狮头鹅和乌鬃鹅为一类,酃县白鹅和皖西白鹅为一类,雁鹅和伊犁鹅为一类,这种聚类结果与各个品种的选育历史和地理分布等一致。
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| 关 键 词： | 遗传结构 遗传分化 鹅 微卫星 STRUCTURE程序 |
Genetic Structure and Genetic Differentiation of 10 Domestic Chinese Geese Populations |
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| LI Hui-fang,SONG Wei-tao,XU Wen-juan,ZHU Wen-qi,TANG Qing-ping,CHEN Kuan-wei.Genetic Structure and Genetic Differentiation of 10 Domestic Chinese Geese Populations[J].Ecology of Domestic Animal,2009(2). |
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| Authors: | LI Hui-fang SONG Wei-tao XU Wen-juan ZHU Wen-qi TANG Qing-ping CHEN Kuan-wei |
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| Institution: | Jiangsu Provincial Key lab Lnstitute of Poultry Science;Chinese Academy of Agriculture Science for Genetics and Breeding of Poultry;Yangzhou;Jiangsu 225003;China |
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| Abstract: | The experiment adopted the information frommicrosatellites to estmate the genetic structure,genetic differentiation and gene flow of 10 geese breeds on the national animal and poultry protection list.The results showed that the inbreeding coefficient of ten populations(Fit) was 0.044,the inbreeding coefficient(Fis) within the populations was-0.408,and the gene coefficient of differentiation among the populations(Fst) was 0.257,and of the three fixed index only Fst achieved significant difference(P<0.01).The... |
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| Keywords: | genetic structure genetic differentiation goose microsatellite STRUCTURE program |
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