The Karyology of Uraeotyphlus gansi, and Its Implications for the Systematics and Evolution of Uraeotyphlidae (Amphibia: Gymnophiona)

Autor: D.J. Gower, Govindappa Venu, G. Venkatachalaiah, A. Rajendran
Rok vydání: 2010
Předmět:
Zdroj: Cytogenetic and Genome Research. 132:182-187
ISSN: 1424-859X
1424-8581
DOI: 10.1159/000321816
Popis: The gross karyotype of the uraeotyphlid caecilian Uraeotyphlus gansi is described as comprising 2n = 42 and fundamental number = 58. These are the first karyotype data for any species of malabaricus-group Uraeotyphlus, and the diploid number is the same as those ichthyophiids thus far studied and differs from the oxyurus-group Uraeotyphlus (2n = 36). These data support the recognition of two species groups within Uraeotyphlus, the monophyly of the oxyurus group, and the understanding that the ancestral diatriatan was more ichthyophiid- than uraeotyphlid-like.
Databáze: OpenAIRE