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A new karyotype for the spiny rat Clyomys laticeps (Thomas, 1909) (Rodentia, Echimyidae) from Central Brazil.
- Source :
-
Comparative Cytogenetics . 2012, Vol. 6 Issue 2, p153-161. 9p. - Publication Year :
- 2012
-
Abstract
- 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, Goiás 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. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 19930771
- Volume :
- 6
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Comparative Cytogenetics
- Publication Type :
- Academic Journal
- Accession number :
- 77324109
- Full Text :
- https://doi.org/10.3897/CompCytogen.v6i2.1980