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|Title:||Cytogenetic analysis of four central Amazonian species of Colostethus (Anura - Dendrobatidae) with a diploid complement of 22 chromosomes|
|Authors:||Veiga-Menoncello, Ana Cristina Prado|
Lima, Albertina Pimental
Pimentel, Shirlei Maria Recco
In Situ Hybridization, Fluorescence
Frogs And Toads
|metadata.dc.relation.ispartof:||Volume 139, Número 3, Pags. 189-198|
|Abstract:||Colostethus marchesianus from the type locality and three related species had 2n = 22 chromosomes, which differed from most other Colostethus species that have 2n = 24 chromosomes. The species analyzed were morphologically similar and showed a conservative karyotype, although they could be distinguished from each other by their C-banding pattern. Additional NOR sites, heteromorphism in NOR size and heterochromatin, and an additional rDNA site detected by FISH, were observed. These data suggest that chromosomal rearrangements and hetrochromatin-related events may have contributed to the karyotype differentiation of these Colostethus.|
|Appears in Collections:||Artigos|
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