Phenotypic variance, repeatability, and heritabilities for melanoma grade, grey level, vitiligo grade, and speckling grade.*

*Results were obtained from the univariate models (see Materials and Methods).**Genetic parameters were calculated as follows: VP = VPOLY+VSTX17+VASIP+Vpe+Ve; R = (VPOLY+VSTX17+VASIP+Vpe,)/VP; c2 = Vpe/VP; h2 = (VPOLY+VSTX17+VASIP)/VP; h2POLY = VPOLY/VP; h2STX17 = VSTX17/VP; h2ASIP = VASIP/VP. For all traits except melanoma, we assumed VASIP = 0. The frequencies ranged from 0.85 to 0.89 for the STX17 G allele and from 0.51 to 0.53 for the ASIP A allele in the various data sets.