Table 1.

Known examples of sex chromosomes in gekkotan lizards as determined by cytogenetic analyses

Species	Family	Chromosome number	Sex chromosomes	Source
Christinus m. alexanderi	G	36	ZW	King and Rofe, 1976
Christinus m. marmoratus	G	34	ZW	King and Rofe, 1976
Christinus m. marmoratus	G	32	ZW	King and King, 1977
Cyrtodactylus pubisulcus	G	42	ZW	Ota et al., 1992
Dixonius siamensis	G	42	ZW	Ota et al., 2001
Gehyra australis	G	40	ZW	King, 1983
Gehyra cf. nana	G	44	ZW	Moritz, 1986
Gehyra purpurascens	G	40	ZW	Moritz, 1984a
Gekko gecko	G	38	XY	Solleder and Schmid, 1984
Gekko hokouensis	G	38	ZW	Kawai et al., 2009
Gekko japonicus	G	38	XY	Yoshida and Itoh, 1974
Hemidactylus vietnamensis ‘triploid’	G	60	ZW	Darevsky et al., 1984
Heteronotia binoei	G	42	ZW	Moritz, 1984b; Moritz et al., 1990
Heteronotia binoei ‘triploid’	G	63	ZW	Moritz, 1984b
Lepidodactylus lugubris	G	44	ZW	Volobouev and Pasteur, 1988
Lygodactylus picturatus	G	39, 40, 41	OW?	Castiglia, 2004
Delma inornata	P	36	XY	King, 1990
Lialis burtonis	P	33, 34	XXY	Gorman and Gress, 1970
Phyllodactylus cf. lanei	Ph	34	ZW	King, 1991
Gonatodes ceciliae	S	22, 26	XY	McBee et al., 1987

Family names are abbreviated: G = Gekkonidae, P = Pygopodidae, Ph = Phyllodactylidae; S = Sphaerodac-tylidae. Chromosome number is 2n for all species except 2 labeled triploid species that are 3n. Note that only some Gehyra australis populations possess heteromorphic sex chromosomes [King, 1983].