Orthology established by Bentrop et al., 2008 (9 genes)

Orthology for fech ( Chr: 21 )
Orthology for st8sia1 ( Chr: 4 )
Orthology for st8sia2 ( Chr: 18 )
Orthology for st8sia3 ( Chr: 21 )
Orthology for st8sia4 ( Chr: 10 )