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Cytogenetic mapping of the W chromosome in the genus Leporinus (Teleostei, Anostomidae) using a highly repetitive DNA sequence
Author(s) -
Marreta M. E.,
Faldoni F. L. C.,
PariseMaltempi P. P.
Publication year - 2012
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.1095-8649.2011.03199.x
Subject(s) - biology , teleostei , karyotype , genus , chromosome , repeated sequence , zoology , evolutionary biology , dna sequencing , fluorescence in situ hybridization , genetics , fish <actinopterygii> , genome , dna , fishery , gene
The distribution of the Leporinus elongatus Le Spe I repetitive sequence in other Leporinus species was studied in an attempt to elucidate the evolutionary history of sex chromosomes in this genus using chromosome fluorescence in situ hybridization. The presence of fluorescent signals only in species that have differentiated sex chromosomes suggests that this sequence is related to the differentiation of sex chromosomes in this genus. Thus, these data will contribute to a better understanding of chromosome evolution, especially for sex chromosomes, in the Leporinus genus.