Use este identificador para citar ou linkar para este item: https://repositorio.inpa.gov.br/handle/1/18961
Título: Cytogenetic analysis of four central Amazonian species of Colostethus (Anura - Dendrobatidae) with a diploid complement of 22 chromosomes
Autor: Veiga-Menoncello, Ana Cristina Prado
Lima, Albertina Pimental
Pimentel, Shirlei Maria Recco
Palavras-chave: Ribosome Dna
C Banding
Chromosome 22
Chromosome Nor
Chromosome Rearrangement
Cytogenetics
Diploidy
Female
In Situ Hybridization, Fluorescence
Frogs And Toads
Heterochromatin
Karyotype
Male
Metaphase
Molecular Biology
Morphology
Nonhuman
Animal
Anura
Chromosome Banding
Chromosomes
Diploidy
Female
Karyotyping
Male
Species Specificity
Amphibia
Anura
Colostethus
Colostethus Marchesianus
Dendrobatidae
Reptilia
Data do documento: 2003
Revista: Hereditas
Encontra-se em: 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.
DOI: 10.1111/j.1601-5223.2003.01805.x
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