%0 Journal Article
%T A new karyotype for the spiny rat Clyomys laticeps (Thomas, 1909) (Rodentia, Echimyidae) from Central Brazil
%A Alexandra Bezerra
%A Juliana Pagnozzi
%A Ana Paula Carmignotto
%A Yatiyo Yonenaga-Yassuda
%J Comparative Cytogenetics
%D 2012
%I Pensoft Publishers
%R 10.3897/compcytogen.v6i2.1980
%X Clyomys Thomas, 1916 is a semifossorial rodent genus of spiny rats represented by only one species, C. laticeps, which inhabits the tropical savannas and grasslands of central Brazil and eastern Paraguay. Here we describe a new karyotype of C. laticeps found in populations of Emas National Park, Goi¨¢s state, Brazil. The four analyzed specimens had a diploid number (2n) of 32 and a fundamental autosome number (FN) of 54. Cytogenetic data include conventional staining, CBG and GTG-banding. The karyotype presents 12 meta/submetacentric pairs (1 to 12) and 3 pairs of acrocentrics (13 to 15) with gradual decrease in size. The X chromosome is a medium submetacentric and the Y is a medium acrocentric. The semifossorial habits together with habitat specificity could have contributed to the karyological variations found on this genus.
%K Clyomys
%K Cerrado
%K cytogenetic
%K Echimyidae
%K taxonomy
%K semifossorial habit
%U http://www.pensoft.net/journals/compcytogen/article/1980/