Studies on the Mitotic Karyotype and Synoptonemal Complex of Gekko Gecko

The diploid chromosome number of the Gekko gecko is 38 for the 2 male and 2 female studied.The karyotype consists of 2 pairs metacentric elements (Nos.1,4);3 pairs submetacentric (Nos.2,3,5)and 14 pairs telocentric or subtelocentric elements (Nos.6-19).No heteromorphic sex chromosomes is observed in the karyotype of Gekko Gecko.A pair of Ag-NOR on the terminal of No.7 chromosome is found.The identification and progression of the prophase stages of meiosis in Gekko gecko gonads are reported.With a combination of surface spreading and silver staining technique synaptonemal complex (S.C) of the Gekko gecko was studied by electron microscopy.The S.C karyotype of the Gekko gecko with 19 bivalents has been constructed.