Karyotypes of Three Species of the Gennus Draco (Agamidae: Lacertilia) from Sabah, Malaysia

Abstract

The first karyological survey was made for D. cornutus, D. haematopogon, and D. quinquefasciatus by bone marrow cell preparations. Despite the distinct interspecific diversification in external characteristics, the three species have identical karyotypes: somatic chromosomes, 2n=34, consisting of six pairs of large metaccentric, two pairs of small metacentric, and nine pairs of small acrocentric elements. The results seem to indicate the relative chromosomal conservativeness of the genus.