The symbols of the co-annotated genes were FANCA, FANCB, FANCC, FANCE, FANCF, FANCG, FANCL and FANCM. These genes are parts of the Fanconi anaemia (FA) protein complex, which protects the cell against chromosomal breakage (Pace et al., 2002). Here, FANCF is linked to Friedreich ataxia.