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Title: | Cytogenetics of two central Amazonian species of Colostethus (Anura, Dendrobatidae) with nidicolous tadpoles |
Authors: | Veiga-Menoncello, Ana Cristina Prado Pimentel, Shirlei Maria Recco Lima, Albertina Pimental |
Issue Date: | 2003 |
metadata.dc.publisher.journal: | Caryologia |
metadata.dc.relation.ispartof: | Volume 56, Número 3, Pags. 253-260 |
Abstract: | A cytogenetic study of two central Amazonian species of Colostethus with nidicolous tadpoles indicated that Colostethus stepheni had 2n=24 chromosomes, whereas Colostethus nidicola had 2n=22 chromosomes. These species also differed in their NOR localization and C-banding pattern. These results suggest that karyotypic variation with a probable reduction in chromosome number and the presence of nidicolous tadpoles are independent events that may have occurred more than once during dendrobatid evolution. © 2003 Taylor & Francis Group, LLC. |
metadata.dc.identifier.doi: | 10.1080/00087114.2003.10589332 |
Appears in Collections: | Artigos |
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