TABLE 1.

Genes and cDNAs employed for in situ hybridization.

Gene name	GenBank accession no.	Insert size	Obtained from
Chicken Orthopedia Homeobox (cOtp; here referred as Otp)	AY651764.1	851 bp (1–851)	Caqueret et al., 2005
Chicken single-minded homolog 1 (cSim1; here referred as Sim1)	BU292855.1 (ChEST579o9.1 BBSRC ChickEST database)	874 bp (33–907)	BBSRC ChickEST database (Boardman et al., 2002)
Chicken vesicular glutamate transporter 2 (vGlut2)	XM_001234284 (ChEST45417 BBSRC ChickEST database)	619 bp (4,098–3,479)	BBSRC ChickEST database (Boardman et al., 2002)
Lizard Orthopedia Homeobox (Otp)	Newly cloned from tissue of Psammodromus algirus, using degenerate primers based on the genome of Anolis carolinensis (GenBank Assembly ID GCA_000090745.1). Forward primer: GGSCTSCAGTCYCACCTCTA Reverse primer: GAAGCTCATGGAGACYGTGT The cloned fragment was inserted in: pCRII Vector (Invitrogen/Thermo Fisher Scientific Inc.)	186 bp	Produced at the Molecular Marker Service (SCSIE) of the University of Valencia (Spain)