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Chromosomes of the brazilian cricetid rodent Wiedomys pyrrhorhinos (Wied, 1821)

Vilna Maia^I; Alfredo Langguth^II

^IDepartamento de Biologia Geral, Universidade Federal de Pernambuco, Cidade Universitária, 50000 Recife, PE, Brasil. Send correspondence to V.M.
^IIDepartamento de Sistemática e Ecologia, CCEN, Universidade Federal da Paraiba, Campus Universitário, 58000 Joao Pessoa, PB, Brasil

ABSTRACT

The karyotype of Wiedomys pyrrohorhinos (Wied, 1821), the only living member of the tribe Wiedomyini of the Neotropical Cricetids, is described (2n = 62, FN = 86) with data on banding patterns (G and C bands) and nucleolus organizer regions (NORs). This information contributes to the study of the phylogenetic interrelationships of this species within the Sigmodontinae.

Keywords: chromosomes; cricetid; rodent; Wiedomys pyrrhorhinos .

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