Data/hora: 10/06/2024 08:21:21

Provedor de dados: | Genetics and Molecular Biology
País: | Brazil
Título: | Nucleolar organizer regions in Sittasomus griseicapillus and Lepidocolaptes angustirostris (Aves, Dendrocolaptidae): evidence of a chromosome inversion
Autores: | Barbosa,Marcelo de Oliveira; Silva,Rubens Rodrigues da; Correia,Vanessa Carolina de Sena; Santos,Luana Pereira dos; Garnero,Analía del Valle; Gunski,Ricardo José.
Data: | 2013-01-01
Ano: | 2013
Palavras-chave: | Cytogenetics; Woodcreepers; Ag-NOR; Chromosomal inversion.
Resumo: | Cytogenetic studies in birds are still scarce compared to other vertebrates. Woodcreepers (Dendrocolaptidae) are part of a highly specialized group within the Suboscines of the New World. They are forest birds exclusive to the Neotropical region and similar to woodpeckers, at a comparable evolutionary stage. This paper describes for the first time the karyotypes of the Olivaceous and the Narrow-billed Woodcreeper using conventional staining with Giemsa and silver nitrate staining of the nucleolar organizer regions (Ag-NORs). Metaphases were obtained by fibular bone marrow culture. The chromosome number of the Olivaceous Woodcreeper was 2n = 82 and of the Narrow-billed Woodcreeper, 2n = 82. Ag-NORs in the largest macrochromosome pair and evidence of a chromosome inversion are described herein for the first time for this group.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000100010
Editor: | Sociedade Brasileira de Genética
Relação: | 10.1590/S1415-47572013000100010
Formato: | text/html
Fonte: | Genetics and Molecular Biology  v.36 n.1 2013
Fonte: | info:eu-repo/semantics/openAccess