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|Type:||Artigo de periódico|
|Title:||Cytogenetic analysis of four central Amazonian species of Colostethus (Anura-Dendrobatidae) with a diploid complement of 22 chromosomes|
|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:||Unicamp - Artigos e Outros Documentos|
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