Fig. 7.

Analysis of sexual dimorphism in secretions from different strains. a Preference indices for all combinations of stimulus pairs. Black squares denote indices that are not significantly different from zero. White squares represent comparisons that cannot be made using our dataset since no neurons were tested with both stimuli. b The four pairwise indices comparing male and female urine from each of the four strains (BALB/c, C57Bl/6, wild-derived, and wild). Data and colors are the same as for the corresponding squares in a. c Fraction of selective neurons for each pair of stimuli. A selective neuron shows a significant response to either of the two stimuli in a pair, but not to both. A fraction of 1 corresponds to a scenario where all neurons respond to one of the stimuli but not to both, while a fraction of 0 corresponds to a scenario where all neurons respond to both stimuli. d Highlight of the 4 values in c that represent male to female comparisons within each of the 4 tested strains