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Type: Artigo de periódico
Title: Karyotypic variation in the genus Megaelosia (Anura, Hylodinae) with the first description of a B-chromosome in a leptodactylid frog
Author: Rosa, C
Aguiar, O
Giaretta, AA
Recco-Pimentel, SM
Abstract: Three species of the genus Alegaelosia (Megaelosia massarti, Megaelosia boticariana, and Megaelosia lutzae) were studied karyotypically using conventional Giemsa staining, C-banding, and NOR techniques. Megaelosia lutzae had 2n = 32 chromosomes, a new diploid number for this genus and for the subfamily Hylodinae. Two morphotypes of B-chromosomes were found in two specimens of M. massarti. C-banding patterns and NOR location varied among the species. Nevertheless, some chromosome pairs, as well as the NOR-bearing secondary constriction and the large pericentromeric C-block on the short arm of chromosome 10, were consistent among the three species. Megaelosia differs markedly from other Hylodinae and Dendrobatidae in terms of karyotype.
Country: EUA
Editor: Amer Soc Ichthyologists Herpetologists
Citation: Copeia. Amer Soc Ichthyologists Herpetologists, n. 1, n. 166, n. 174, 2003.
Rights: fechado
Date Issue: 2003
Appears in Collections:Unicamp - Artigos e Outros Documentos

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