|本期目录/Table of Contents|

[1]高杨,田灿,姜京京,等.基于微卫星标记的克氏原螯虾种群遗传多样性和遗传结构分析[J].江苏农业科学,2023,51(5):191-199.
 Gao Yang,et al.Genetic diversity and genetic structure analysis of Procambarus clarkii population based on microsatellite markers[J].Jiangsu Agricultural Sciences,2023,51(5):191-199.
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基于微卫星标记的克氏原螯虾种群遗传多样性和遗传结构分析(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第51卷
期数:
2023年第5期
页码:
191-199
栏目:
畜牧兽医与水产蚕桑
出版日期:
2023-03-05

文章信息/Info

Title:
Genetic diversity and genetic structure analysis of Procambarus clarkii population based on microsatellite markers
作者:
高杨1田灿3姜京京1唐永凯12张成锋2冯文荣2李冰2陈铭2卢泽宇2苏胜彦12朱健12
1.南京农业大学无锡渔业学院,江苏无锡 214081; 2.农业农村部淡水渔业和种质资源利用重点实验室/农业农村部渔综合种养生态重点实验室,江苏无锡 214081; 3.上海海洋大学水产科学国家级实验教学示范中心,上海 201306
Author(s):
Gao Yanget al
关键词:
克氏原螯虾遗传多样性:微卫星标记遗传结构
Keywords:
-
分类号:
S917;S966.12
DOI:
-
文献标志码:
A
摘要:
为了解当前我国不同地区克氏原螯虾种群的遗传背景情况,以期为人工养殖、新品种选育和资源保护提供参考依据。选取江苏洪泽湖(HZH)、湖北洪湖(HH)、湖南洞庭湖(DTH)、山东微山湖(WSH)、安徽巢湖(CH)、江西鄱阳湖(PYH)6个典型区域的克氏原螯虾群体作为研究对象,采用14对微卫星引物对来自6个地区的168份样品进行遗传多样性检测。结果可知,各群体不同标记位点的等位基因数在3~14之间,平均期望杂合度为081,平均多态信息含量分布在0.42~0.59之间,各群体均处于中高度遗传多样性水平。6个群体均发生一定程度Hardy-Weinberg平衡偏离,仅有少数位点在单一群体满足Hardy-Weinberg平衡,同时连锁不平衡检测发现9个连锁座位对处于不平衡状态。遗传距离结果显示,6个克氏原螯虾群体的遗传一致度(I)处于0.127 8~0.643 9之间,各群体间遗传距离(D)处于0.440 2~2.057 3之间。群体间遗传分化指数(Fst)接近0.5,反映出群体间的基因交流水平较弱,存在高度的遗传分化。AMOVA分析发现,39.65%的遗传变异来源于群体间,97.99%的遗传变异来源于个体间。遗传结构数据显示,K=5时,6个群体间存在显著的结构差异。上叙结果可知,6个地区的克氏原螯虾群体具有丰富的遗传多样性,群体间出现了显著分化,可通过隔离保种、杂交、选择育种等方式保护利用克氏原螯虾的种质资源,为我国克氏原鳌虾产业的持续健康发展提供良种支持。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2022-04-13
资助项目:中国水产科学研究院基本科研业务费(编号:2022XT01);江苏省种业振兴“揭榜挂帅”项目(编号:JBGS[2021]123);中国水产科学研究院淡水渔业研究中心基本科研业务费项目(编号:2021JBFM21)。
作者简介:高杨(1997—),男,安徽铜陵人,硕士研究生,研究方向为水产动物遗传育种。E-mail:1463455739@qq.com。
通信作者:苏胜彦,博士,副研究员,研究方向为虾蟹遗传育种,E-mail:ouhaicourse@hotmail.com;朱健,博士,研究员,研究方向为水产动物遗传育种和水产养殖,E-mail:zhuj@ffrc.cn。
更新日期/Last Update: 2023-03-05