Differential expression in the nucleus accumbens of male and female prairie voles following cohabitation. In (A–C), volcano plots depict the log2 fold-change against the −log10 of the uncorrected p-value for each gene in each pairwise comparison in males (A), females (B), or between-sexes (C). Red dots correspond to differentially expressed genes (surviving the 0.1 false-discovery rate). In (D–F), Euler diagrams illustrate the degree of overlap between differentially-expressed genes in males (D), females (E), or between-sexes (F). The area of each circle is proportional to the number of differentially expressed genes it contains. SN: sexually-naive, 24H: 24 hrs of cohabitation, 3W: 3 weeks of cohabitation.