Figure 3. Mapping of genes involved in sex determination and differentiation (in blue) residing on sex chromosomes. AR: Androgen receptor; ATRX: Alpha-thalassemia/mental retardation syndrome X-linked; AZF: azoospermia factor; CSF2RA: Colony-stimulating factor 2 receptor alpha; DAX1: DSS-AHC critical region X chromosome gene 1; DAZ: Deleted in azoospermia; FRA-X: Fragile X syndrome; DMD: Duchenne muscular dystrophy; GK: Glycerol kinase; HY: Histocompatibility antigen Y; IL3RA: Interleukin 3 receptor alpha; IL9R: Interleukin 9 receptor; Kal1: Kallmann syndrome 1; PAR: Pseudo-autosomal regions; POLA: DNA polymerase alpha; RBMY: RNA-binding motif protein Y chromosome; SHOX: Short stature homeo box; SRY: Sex-determining region Y chromosome; USP9Y: Ubiquitin-specific protease 9 Y chromosome; XIST: X inactivation-specific transcript; ZFX: Zinc finger protein X-linked; ZFY: Zinc finger protein Y-linked.