Orthology established by Manoli et al., 2014 (12 genes)

Orthology for nkx2.1 ( Chr: 17 )
Orthology for nkx2.2a ( Chr: 17 )
Orthology for nkx2.3 ( Chr: 13 )
Orthology for nkx2.4a ( Chr: 17 )
Orthology for nkx2.4b ( Chr: 20 )
Orthology for nkx2.5 ( Chr: 14 )