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Chromosome analysis of Bothus podas (Pisces, Pleuronectiformes) from the Mediterranean Sea
Author(s) -
Vitturi R.,
Catalano E.,
Colombera D.
Publication year - 1993
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1993.tb00424.x
Subject(s) - biology , ploidy , mediterranean sea , chromosome , zoology , fish <actinopterygii> , mediterranean climate , genetics , evolutionary biology , fishery , ecology , gene
A modal diploid number 2 n =38 has been determined in both sexes of the pleuronectiform Bothus podas from the Gulf of Palermo (Mediterranean). An XX‐XY sex‐determining mechanism presumably occurs in this species. Application of silver staining (NORs) along with G‐ and C‐banding techniques showed that secondary constrictions occurring in a large metacentric pair were variable in length in different fish. Polymorphisms of these areas seem to have a genetic, rather than transcriptional, basis.