A new karyotype for the spiny rat Clyomys laticeps (Thomas, 1909) (Rodentia, Echimyidae) from Central Brazil
| Autor: | Ana Paula Carmignotto, Alexandra M. R. Bezerra, Flávio Henrique Guimarães Rodrigues, Juliana Marge Pagnozzi, Yatiyo Yonenaga-Yassuda |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
semifossorial habit
Autosome biology Rodent Clyomys lcsh:QH426-470 National park cytogenetic Zoology Clyomys laticeps Karyotype Cerrado Plant Science Echimyidae biology.organism_classification Article taxonomy lcsh:Genetics biology.animal Genetics Animal Science and Zoology Taxonomy (biology) Ploidy Biotechnology |
| Zdroj: | Comparative Cytogenetics, Vol 6, Iss 2, Pp 153-161 (2012) Comparative Cytogenetics 6(2): 153-161 Comparative Cytogenetics |
| ISSN: | 1993-0771 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|