The
sum of the additive effects when jointly estimated in the full
model was 0.85. Thus, the expected difference between
individuals homozygous for all MS alleles and those
homozygous for all LW alleles was 1.71, slightly less than
the range between flop (1) and fully erect (3) ears. Two
suggestive QTL on SSC9 and SSC12 had smaller effects.