| 华东地区家鸭资源群体的遗传结构分析 |
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| 引用本文： | 李慧芳,宋卫涛,朱文奇,徐文娟,汤青萍.华东地区家鸭资源群体的遗传结构分析[J].农业生物技术学报,2008,16(2):248-252. |
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| 作者姓名： | 李慧芳 宋卫涛 朱文奇 徐文娟 汤青萍 |
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| 作者单位： | 中国农业科学院家禽研究所,扬州,225003 |
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| 基金项目： | 国家自然科学基金
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科技部科技基础条件平台建设计划 |
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| 摘 要： | 本实验通过微卫星标记技术对我国华东地区9个家鸭资源群体（微山麻鸭、巢湖麻鸭、绍兴鸭、高邮鸭、大余鸭、金定鸭、连城白鸭、莆田黑鸭、山麻鸭）的遗传结构进行了评估。结果表明：9个品种的平均杂合度都较高，最低的为金定鸭，最高的为山麻鸭，杂合度范围为0.5137～0.6055，群体平均杂合度为0.5523，反映了各鸭种的杂合度都较高，遗传多样性丰富；华东区各鸭种间存在较大的遗传分化，25.65%的遗传变异来源于品种间的差异，更进一步反映了各品种具有本品种特征特性的多样性；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聚类结果将华东区家鸭资源聚为4类，NJ的聚类结果分析与几个鸭品种的地域分布和经济用途有一定关系。研究结果充分反映了华东区家鸭资源的遗传结构，对促进资源优势向经济优势的转化具有重要科学意义。
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| 关 键 词： | 鸭 微卫星 遗传多样性 |
| 文章编号： | 1006-1304(2008)02-0248-05 |
| 收稿时间： | 2007-3-13 |
| 修稿时间： | 2007年3月13日 |
Genetic Structure Analysis of Domestic Duck Populations in East China |
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| LI Hui-fang,SONG Wei-tao,ZHU Wen-qi,XU Wen-juan,TANG Qing-ping.Genetic Structure Analysis of Domestic Duck Populations in East China[J].Journal of Agricultural Biotechnology,2008,16(2):248-252. |
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| Authors: | LI Hui-fang SONG Wei-tao ZHU Wen-qi XU Wen-juan TANG Qing-ping |
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| Abstract: | By using microsatellite markers, the genetic structure of 9 domestic duck populations in East china, including Weishan sheldrake, Chaohu sheldrake, Shaoxing, Gaoyou, Dayu, Jinding, Liancheng white, Putian black and San sheldrake, was analyzed in this experiment. The results showed that the average heterozygosity was higher in 9 populations，the lowest is Jinding, the highest is San sheldrake, which ranged from 0.5137~0.6055. The average heterozygosity of 9 duck populations was 0.5523, which reflected the rich diversity. Considerable breed differentiation was observed and 25.65% of the total genetic variation came from breed differences, this result affirmed each breed was of own genetic diversity. The DA genetic distances suggested the longer differentiation existed between those breeds. The domestic duck breeds in East China were clustered into four groups based on the NJ clustering, the clustering results had some relationship with the distributions and economic utilizations of these duck breeds. All results not only fully analyzed the genetic structure of domestic duck breeds in East China, but also was of important value to transform resource advantage to economic advantage. |
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