Association of the SNP-9 genotypes of NCAPG with carcass weight, LMA, and SFT. The steers of the five families and the cows of Sire D's family were genotyped with SNP-9. The number of offspring of each genotype is shown in the bar of the upper panel. The averages of slaughter year- and age-adjusted phenotypic values were compared between genotypes using a t-test. *, p < 0.05; **, p < 0.01; ***, p < 0.001.