Chromosomal studies of five tropical scorpaeniform fishes (Teleostei, Scorpaenidae)

The karyotypes of five species of Scorpaenidae (genera Scorpenopsis, Dendrochirus and Pterois) from the Indian Ocean were analysed using various banding methods and in situ hybridisation with a ribosomal probe. All the species investigated are characterised by a diploid set of 48 chromosomes (mainly...

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Bibliographic Details
Published in:The Italian journal of zoology 2003-01, Vol.70 (3), p.201-204
Main Authors: Caputo, Vincenzo, Cerioni, Paola Nisi, Caniglia, Maria Luisa, Giovannotti, Massimo, Vitturi, Roberto, Colomba, Maria Stella
Format: Article
Language:English
Subjects:
Dendrochirus
karyotype evolution
Marine
Pterois
Scorpaenidae
Scorpaenopsis
Scorpaenopsis - chromosomes
Scorpenopsis
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Summary:The karyotypes of five species of Scorpaenidae (genera Scorpenopsis, Dendrochirus and Pterois) from the Indian Ocean were analysed using various banding methods and in situ hybridisation with a ribosomal probe. All the species investigated are characterised by a diploid set of 48 chromosomes (mainly acrocentric and/or subtelocentric) and by a NOR location on the small arm of a medium-sized pair. All the chromosomes stained uniformly with DAPI, whereas C-banding evidenced a small amount of hete-rochromatin. Despite the marked morphological differences among these species, the low degree of diversification of the chromosome sets with respect to the ancestral set of teleosts (2n = 48 acrocentric chromosomes) suggests that chromosome morphology has not undergone profound rearrangements during the evolution of these taxa.
ISSN:1125-0003
1748-5851
DOI:10.1080/11250000309356517