Data/hora: 10/06/2024 14:09:45

Provedor de dados: | Anais da Academia Brasileira de Ciências
País: | Brazil
Título: | Karyotypic analysis in species of the genus Dasyprocta (Rodentia: Dasyproctidae) found in Brazilian Amazon
Autores: | RAMOS,ROSEMAR S. L.; VALE,WILLIAM G.; ASSIS,FÁTIMA L.
Data: | 2003-03-01
Ano: | 2003
Palavras-chave: | Cytogenetics; Hystricognathi; Dasyprocta; Karyotype.
Resumo: | A total of 30 animals of the genus Dasyprocta were cytogenetically studied. They belong to the following species: D. prymnolopha (N=20), D. leporina (N=6), D. fuliginosa (N=1) and Dasyprocta sp. (N=3) (Dasyproctidae, Hystricognathi). Cell suspensions were obtained by peripheral blood culture, besides bone marrow and spleen cells, from D. prymnolopha and D. leporina. The diploid number was 64/65 for all samples. The karyotypes showed similarity, and chromosomal polymorphism was not detected by Giemsa conventional staining and G banding. The constitutive heterochromatin distribution at the pericentromeric region of all the chromosomes was similar in all species. D. prymnolopha, D. leporina and Dasyprocta sp. presented variation in the heterochromatical block size at one of the homologues of the A18 pair. D. fuliginosa presented the heterochromatin uniformly distributed in all chromosomes. There was not variation in the NORs pattern in the species studied.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652003000100007
Editor: | Academia Brasileira de Ciências
Relação: | 10.1590/S0001-37652003000100007
Formato: | text/html
Fonte: | Anais da Academia Brasileira de Ciências  v.75 n.1 2003
Fonte: | info:eu-repo/semantics/openAccess