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| “黄海1号”中国对虾不同世代间的AFLP分析 | |
| 引用本文： | 安丽,刘萍,李健,何玉英,王清印,孔晓瑜.“黄海1号”中国对虾不同世代间的AFLP分析[J].中国海洋大学学报(自然科学版),2008,38(6). |
| 作者姓名： | 安丽 刘萍 李健 何玉英 王清印 孔晓瑜 |
| 作者单位： | 1. 中国海洋大学水产学院,山东,青岛,266003;中国水产科学研究,院黄海水产研究所,山东,青岛,266071 2. 中国水产科学研究,院黄海水产研究所,山东,青岛,266071 3. 中国海洋大学水产学院,山东,青岛,266003 |
| 基金项目： | 国家科技支撑计划，山东省青岛市科技发展基金，国家自然科学基金 |
| 摘 要： | 采用AFLP技术对中国对虾野生群体和第9、10代选育群体的遗传多样性及遗传分化进行分析,计算了3个群体间的遗传多态度、遗传距离及分化系数.结果显示,5对引物共产生了137条带,其中多态性条带有63条,平均每对引物检测到 12.6条多态性条带.3个群体的多态位点比例分别为45.99%、40.57%和41.02%;Shannon 多样性指数分别为0.181 8,0.180 7和0.177 4;野生群体与选育群体之间的遗传距离及分化都比较大,但选育群体之间的遗传距离和分化都很小分别为0.003 1和0.020 6.结果表明,选育群体相较于野生群体多态位点比例和遗传多态度均有所下降,随着选育时间的延长,相邻世代群体间遗传距离和分化也均有所下降,出现趋同现象,显示出"黄海1号"新品种具有遗传上的稳定性. |
| 关 键 词： | 中国对虾 选育群体 遗传结构 |
AFLP Analysis on Selected Populations of Shrimp Fenneropenaeus chinensis Named Yellow Sea 1 |
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| AN Li,LIU Ping,LI Jian,HE Yu-Ying,WANG QingYin,KONG Xiao-Yu.AFLP Analysis on Selected Populations of Shrimp Fenneropenaeus chinensis Named Yellow Sea 1[J].Periodical of Ocean University of China,2008,38(6). | |
| Authors: | AN Li LIU Ping LI Jian HE Yu-Ying WANG QingYin KONG Xiao-Yu |
| Institution: | AN Li1,2,LIU Ping2,LI Jian2,HE Yu-Ying2,WANG Qing-Yin2,KONG Xiao-Yu1(1.College of Fisheries,Ocean University of China,Qingdao 266003,China,2.Yellow Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Qingdao 266071,China) |
| Abstract: | The AFLP technique was used to analyze the genetic diversity and genetic differentiation of a wild population and 2 consecutive selected populations of shrimp Fenneropenaeus Chinensis.The genetic polymorphisms,genetic distances and differentiation indexes were calculated according to the AFLP results.The results showed that 137 bands were generated with 5 primer sets,and 63 bands were polymorphic bands.On the average,every primer set had detected 12.6 polymorphic bands.The proportions of polymorphic loci we... |
| Keywords: | AFLP |
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