Allelic Composition: MitfMi/MitfMi,Tfectm1Est/Tfectm1Est
Genetic Background: either: (involves: 129/Sv * 129S1/Sv * C57BL/6J) or (involves: 129S1/Sv * C57BL/6J)
Allelic Composition: MitfMi-wh/MitfMi-wh,Tfe3tm1Est/Tfe3tm1Est,Tfectm1Est/Tfectm1Est
Genetic Background: either: (involves: 129/Sv * 129S1/Sv * C57BL * DBA) or (involves: 129S1/Sv * C57BL * C57BL/6J * DBA)