Orthology established by van de Peer et al., 2002 (18 genes)

Orthology for dlx2a ( Chr: 9 )
Orthology for dlx2b ( Chr: 1 )
Orthology for en1a ( Chr: 9 )
Orthology for en1b ( Chr: 1 )
Orthology for en2a ( Chr: 7 )
Orthology for en2b ( Chr: 2 )
Orthology for foxb1a ( Chr: 25 )
Orthology for foxb1b ( Chr: 7 )
Orthology for jak2a ( Chr: 21 )