%0 Journal Article
%T Nucleolar organizer regions in Sittasomus griseicapillus and Lepidocolaptes angustirostris (Aves, Dendrocolaptidae): evidence of a chromosome inversion
%A Barbosa
%A Marcelo de Oliveira
%A Silva
%A Rubens Rodrigues da
%A Correia
%A Vanessa Carolina de Sena
%A Santos
%A Luana Pereira dos
%A Garnero
%A Anal¨ªa del Valle
%A Gunski
%A Ricardo Jos¨¦
%J Genetics and Molecular Biology
%D 2013
%I Sociedade Brasileira de Gen¨¦tica
%R 10.1590/S1415-47572013000100010
%X 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.
%K cytogenetics
%K woodcreepers
%K ag-nor
%K chromosomal inversion.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1415-47572013000100010&lng=en&nrm=iso&tlng=en