FIGURE 3.

Behavioral response of Taar2-9^−/− and wild type (WT) males to different odors. Mean (±SEM) periods of time Taar2-9^−/− and WT males spent sniffing (A) male (blue) and female (red) odors, (B) mixtures of three amines in different concentrations, and (C) single amines in different concentrations during a period of 2 min. Male and female odors were obtained from two different cages inhabited by males (male odor 1 and 2) and females (female odor 1 and 2), respectively. Male and female odors were presented three times (P1–P3) and amine mixtures were presented twice (P1–P2); odors were freshly prepared for each trial. DMA, dimethylamine; CA, cinnamide; TMAO, trimethylamine oxide; IBA, isobutylamine; DAP, diaminopropane; DEA, diethylamine. N = 5–9 male mice/group. ^∗P < 0.05, ^∗∗P < 0.01, ^∗∗∗P < 0.001.