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Note on the banded karyotype of the enigmatic South Asian loach Vaillantella maassi (Cypriniformes: Vaillantellidae)

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    0305778 - ÚŽFG 2008 RIV JP eng J - Journal Article
    Bohlen, Jörg - Völker, M. - Rábová, Marie - Ráb, Petr
    Note on the banded karyotype of the enigmatic South Asian loach Vaillantella maassi (Cypriniformes: Vaillantellidae).
    [Poznámka o diferencovaně barveném karyotypu záhadné jihosijské sekavcovité ryby, Vaillantella maassi (Cypriniformes: Vaillantellidae).]
    Ichthyological Research. Roč. 55, - (2008), s. 82-84. ISSN 1341-8998. E-ISSN 1616-3915
    R&D Projects: GA ČR GA206/05/2556; GA ČR GA206/00/0668; GA AV ČR IBS5045111; GA AV ČR IAA600450508
    Institutional research plan: CEZ:AV0Z50450515
    Keywords : fish cytogenetics * CMA3 banding * NOR phenotype
    Subject RIV: EG - Zoology
    Impact factor: 0.624, year: 2008

    The karyotype of Vaillantella maassi, a loach with an unusually long dorsal fin, was investigated using sequentialCMA3 and AgNO3 staining to test if this character evolved in parallel with Vaillantella's morphological distinctness. The karyotype was 2n = 50 with 13 pairs of metacentric-submetacentric and 12 pairs of subtelocentric chromosomes. Sequential CMA3 banding and AgNO3 staining evidenced NORs in the short arms of pair no. 2. Additional CMA3-positive, Ag-negative signals were present in the short arms of pairs 14 and 15. The karyotype paralleled those of most other cobitoid loaches studied so far and is apparently not associated with the morphological distinctness of Vaillantella.

    Byl vyšetřen karyotyp záhadné a velmi málo známé jihoasijské sekavcovité ryby s neobvykle dlouhou hřbetní ploutví, Vaillantella maassi, pomocí několika typů barvení chromozómů. Karyotyp s diploidním počtem chromozómů 2n = 50 byl obdobný jako u ostatních sekavcovitých a nepotvrdila se hypotéza, že morfologická odlišnost souvisí i se změnami tohoto znaku.
    Permanent Link: http://hdl.handle.net/11104/0158952

     
     
Number of the records: 1  

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