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https://repositorio.inpa.gov.br/handle/1/18961| 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 |
| Keywords: | 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 |
| Issue Date: | 2003 |
| metadata.dc.publisher.journal: | Hereditas |
| 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. |
| metadata.dc.identifier.doi: | 10.1111/j.1601-5223.2003.01805.x |
| Appears in Collections: | Artigos |
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