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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
Author: Veiga-Menoncello A.C.P.
Lima A.P.
Recco-Pimentel S.M.
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.
Rights: aberto
Identifier DOI: 10.1111/j.1601-5223.2003.01805.x
Date Issue: 2003
Appears in Collections:Unicamp - Artigos e Outros Documentos

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