Cytogenetic characterization of the large South American siluriform fish species Zungaro zungaro (Pisces, Pimelodidae)

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抄録

The family Pimelodidae represents a very specious fish group but their phylogenetic relationships are still poorly known. In the present paper were cyiogenetically analyzed five specimens of Zungaro zungaro. Was observed a diploid number of 56 chromosomes and the karyotype are constituted by 32 M, 6 SM, 8 ST and 10 A chromosomes, with a fundamental number (FN) of 102. The nucleolus organizer regions (NORs) detected by AgNO_3 and CMA_3 Staining as well as fluorescence in situ hybridization with 18S rDNA probe, are located at terminal position on the short arms of a subtelocentric chromosome pair. All the applied techniques evidence a strong size heteromorphism between the NOR-bearing homologous chromosomes.

収録刊行物

  • Chromosome science

    Chromosome science 5(1), 51-55, 2001-10-01

    Society of Chromosome Research

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各種コード

  • NII論文ID(NAID)
    110003723516
  • NII書誌ID(NCID)
    AA11163057
  • 本文言語コード
    ENG
  • 資料種別
    SHO
  • ISSN
    13441051
  • NDL 記事登録ID
    6263065
  • NDL 雑誌分類
    ZR1(科学技術--生物学)
  • NDL 請求記号
    Z54-J215
  • データ提供元
    CJP書誌  CJP引用  NDL  NII-ELS  NDL-Digital 
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