Figure 7

Tas2r genotype correlates with QHCl taste phenotype. Mean lick ratios of B6, D2 and BXD strains reported in Figure 1 are grouped based on Tas2r haplotype (B6 haplotype = blue, D2 haplotype = red). B6 mice (blue line on left panel) are more sensitive to 1 mM and 3 mM QHCl than are D2 mice (red line on left panel) in brief access taste tests. Similarly, BXD strains with the B6 Tas2r haplotype (blue lines, right panel) are more sensitive to QHCl than are BXD strains with the D2 Tas2r haplotype (red lines, right panel). The BXD strains are listed in order from least to most sensitive to 1 mM QHCL.