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Karyology of the Atlantic forest rodent Juliomys (Cricetidae): a new karyotype from southern Brazil
Provedor de dados: Genetics and Molecular Biology
Autores: Paresque,Roberta; Christoff,Alexandre Uarth; Fagundes,Valéria.
Juliomys is a small rodent from the family Cricetidae which inhabits the Atlantic forest and forests from Argentina to eastern Brazil. The three species recognized so far have different karyotypes. In this paper, we describe a new karyotype with 2n = 32, FN = 48 found in Juliomys specimens from a high-altitude area in the Atlantic forest of southern Brazil. The karyotype was analyzed after G- and C-banding and silver staining of the nucleolus organizer regions (Ag-NOR) and its G-banding patterns were compared with those of the newly described species Juliomys ossitenuis (2n = 20, FN = 36). The 2n = 32 karyomorph presented peculiar features and was very different from those of the other species of the genus: J. pictipes (2n = 36, FN = 34), J. rimofrons (2n...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Juliomys; Karyotype evolution; J. ossitenuis; Comparative G-banding; Ag-NORs.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000200016