Selection for Constancy of Expression of the Tabby Gene in the Mouse

Abstract

Selection of Tal + mice for 15 vibrissae caused a reduction in variance of the Tal + score and a slight increase in the probit width of the 15 class. There was an increase in mean score and variance of the TalTa and TalY sibs and a slight decrease in mean score and increases in variance of the + I Y sibs. Selection of TalTa and TalY mice for 7 vibrissae caused a reduction in variance and an increase in probit width of the 7 class in the two selected genotypes. The mean score of Tal + sibs declined and their variance increased.