周宸. 2种虾虎鱼染色体的组型分析[J]. 南方水产科学, 2010, 6(4): 72-76. DOI: 10.3969/j.issn.1673-2227.2010.04.012
引用本文: 周宸. 2种虾虎鱼染色体的组型分析[J]. 南方水产科学, 2010, 6(4): 72-76. DOI: 10.3969/j.issn.1673-2227.2010.04.012
shu
ZHOU Huan. Karyotype analysis of chromosome of 2 Gobioid species[J]. South China Fisheries Science, 2010, 6(4): 72-76. DOI: 10.3969/j.issn.1673-2227.2010.04.012
Citation: ZHOU Huan. Karyotype analysis of chromosome of 2 Gobioid species[J]. South China Fisheries Science, 2010, 6(4): 72-76. DOI: 10.3969/j.issn.1673-2227.2010.04.012
shu

2种虾虎鱼染色体的组型分析

Karyotype analysis of chromosome of 2 Gobioid species

    摘要
  • 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。

     

    Abstract: 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.

     

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