Karyotypic analyses and morphological comments on the endemic and endangered Brazilian painted tree rat Callistomys pictus (Rodentia, Echimyidae)

Autor(es)

Ventura, Karen ^[1] ; Iack Ximenes, Gilson Evaristo ^[2] ; Pardini, Renata ^[3] ; Nobrega de Sousa, Marcos A. ^[4] ; Yonenaga-Yassuda, Yatiyo ^[1] ; Silva, Maria Jose de J. ^[5]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Biociencias, Dept Genet & Biol Evolut, Sao Paulo - Brazil

^[2] Univ Estadual Santa Cruz, Dept Ciencias Biol, Ilheus, BA - Brazil

^[3] Univ Sao Paulo, Inst Biociencias, Dept Zool, Sao Paulo - Brazil

^[4] Univ Estadual Paraiba, Ctr Ciencias Biol & Sociais Aplicadas, Joao Pessoa, Paraiba - Brazil

^[5] Inst Butantan, Lab Especial Ecol & Evolucao, BR-05503900 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: GENETICS AND MOLECULAR BIOLOGY; v. 31, n. 3, p. 697-703, 2008.
• Citações Web of Science: 4

Resumo

The genus Callistomys belongs to the rodent family Echimyidae, subfamily Echimyinae, and its only living representative is Callistomys pictus, a rare and vulnerable endemic species of the state of Bahia, Brazil. Callistomys has been previously classified as Nelomys, Loncheres, Isothrix and Echimys. In this paper we present the karyotype of Callistomys pictus, including CBG and GTG-banding patterns and silver staining of the nucleolus organizer regions (Ag-NORs). Comments on Callistomys pictus morphological traits and a compilation of Echimyinae chromosomal data are also included. Our analyses revealed that Callistomys can be recognized both by its distintinctive morphology and by its karyotype. (AU)

• Processo FAPESP: 05/04557-3 - Estudos citogenéticos e moleculares em pequenos roedores neotropicais
• Beneficiário: Maria José de Jesus Silva
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores