2种虾虎鱼染色体的核型分析  

Karyotype analysis of chromosome of 2 Gobioid species

作　　者：周宸[1] 

机构地区：[1]福建省水产研究所,福建厦门361012

出　　处：《南方水产》2010年第4期72-76,共5页South China Fisheries Science

基　　金：福建省公益类基本科研专项项目(2009R10011-5)

摘　　要：采用鱼鳍细胞空气干燥法制片,Giemsa染色,对生活于厦门和海南近海沿岸的2种虾虎鱼染色体核型进行分析研究。其中纹缟虾虎鱼(Tridentiger trigonocephalus)2n=44,有2对中部着丝点染色体(M),13对亚中部着丝点染色体(SM),2对亚端部着丝点染色体(ST)和5对端部着丝点染色体(T),NF=78;拟丝虾虎鱼(Cryptocentroides insignis)2n=50,有9对中部着丝点染色体(M),13对亚中部着丝点染色体(SM),2对亚端部着丝点染色体(ST)和1对端部着丝点染色体(T),NF=98。未发现随体、性染色体和异形染色体。The author examined the karyotypes of two Gobioid species from Xiamen and Hainan coastal waters by treating fin cells with colchicine-hypotonic air drying and Giemsa staining methods.The results show that Tridentiger trigonocephalus has a diploid number of 44 chromosomes,among which 2 pairs are metacentric chromosomes （M）,13 pairs submetacentric chromosomes （SM）,2 pairs acrocentric chromosomes （ST） and 5 pairs telocentric chromosomes （T） with a fundamental arm number （NF） amounting to 78.The diploid number of Cryptocentroides insignis is 50,among which 9 pairs are metacentric chromosomes （M）,13 pairs submetacentric chromosomes （SM）,2 pairs acrocentric chromosomes （ST） and 1 pair telocentric chromosome （T）,and its NF is 98.Moreover,no satellite chromosome,sexual chromosome or the special chromosome are detected either in T.trigonocephalus or in C.insignis.

关 键 词：纹缟虾虎鱼 拟丝虾虎鱼 染色体 核型 

分 类 号：Q343.22[生物学—遗传学]