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橙色莫桑比克罗非鱼和荷那龙罗非鱼的染色体核型分析
引用本文:朱华平,卢迈新,黄樟翰,高风英,杨丽萍,陈昆慈.橙色莫桑比克罗非鱼和荷那龙罗非鱼的染色体核型分析[J].淡水渔业,2009,39(5).
作者姓名:朱华平  卢迈新  黄樟翰  高风英  杨丽萍  陈昆慈
作者单位:中国水产科学研究院珠江水产研究所,广州,510380
基金项目:国家科技支撑计划,农业部公益性行业科研专项,广东省农业重点项目,广东省海洋渔业科技推广专项,淡水生态与生物技术国家重点实验室开放课题 
摘    要:采用体腔注射PHA-空气干燥法对橙色莫桑比克罗非鱼(Oreochromis mossambicus)和荷那龙罗非鱼(O.hornorum)染色体数量、形态和核型进行了分析和比较。结果显示:两种罗非鱼的二倍体染色体数目均为2n=44,都具有1对特大的染色体,未发现中部着丝粒染色体对和异型染色体。两种罗非鱼的染色体组型形态基本相似,它们的核型公式为2n=44,6sm+24st+14t,NF=50,用常规染色体染色的方法难以区分。研究结果表明,这两种罗非鱼的常规核型差异不显著,在分类地位上非常接近。

关 键 词:橙色莫桑比克罗非鱼(Oreochromis  mossambicus)  荷那龙罗非鱼(Oreochromis  hornorum)  染色体  核型

The karyotypes of Mozambique tilapia and Zanzibar tilapia
ZHU Hua-ping,LU Mai-xin,HUANG Zhang-han,GAO Feng-ying,YANG Li-ping,CHEN Kun-ci.The karyotypes of Mozambique tilapia and Zanzibar tilapia[J].Freshwater Fisheries,2009,39(5).
Authors:ZHU Hua-ping  LU Mai-xin  HUANG Zhang-han  GAO Feng-ying  YANG Li-ping  CHEN Kun-ci
Institution:ZHU Hua-ping,LU Mai-xin,HUANG Zhang-han,GAO Feng-ying,YANG Li-ping,CHEN Kun-ci(Pearl River Fisheries Research Institute,Chinese Academy of Fishery Sciences,Guangzhou 510380)
Abstract:Chromosome numbers,forms and karyotype of Mozambique tilapia(Oreochromis mossambicus) and Zanzibar tilapia(Oreochromis hornorum) were analyzed and compared by using PHA-injection air drying method.Both of the two species of Tilapia had a diploid chromosome number of 44 with a large and long chromosome pairs.No metacentric chromosome pairs and heteromorphic chromosomes were found.The two fishes had similar karyotype and the conventional karyotype formula is 2n=44,6sm+24st+14t,NF=50.It was difficult to distin...
Keywords:Oreochromis mossambicus  Oreochromis hornorum  chromosome  karyotype  
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