title: The Karyology of Uraeotyphlus gansi, and Its Implications for the Systematics and Evolution of Uraeotyphlidae (Amphibia: Gymnophiona).
abstract: 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.
authors.affiliation: Centre for Applied Genetics, Department of Zoology, Bangalore University, Bangalore, India.
authors.forename: G
authors.initials: G
authors.lastname: Venu
authors.forename: A
authors.initials: A
authors.lastname: Rajendran
authors.forename: G
authors.initials: G
authors.lastname: Venkatachalaiah
authors.forename: D J
authors.initials: DJ
authors.lastname: Gower
mesh_terms: D000663:Amphibians / Q000145:classification / Q000235:genetics*; D000818:Animals; D002871:Chromosome Banding; D002875:Chromosomes / Q000235:genetics*; D019143:Evolution, Molecular; D005260:Female; D007621:Karyotyping; D008297:Male; D010802:Phylogeny