Orthology established by Imanishi et al., 2004 (8 genes)

Orthology for guca1aa ( Chr: 4 )
Orthology for guca1ab.1 ( Chr: 22 )
Orthology for guca1b ( Chr: 23 )
Orthology for guca1c ( Chr: 15 )
Orthology for guca1d ( Chr: 21 )