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Fig. 5 | BMC Evolutionary Biology

Fig. 5

From: Selection shapes turnover and magnitude of sex-biased expression in Drosophila gonads

Fig. 5

Summary of dN/dS values from various gene sets for the four species of Drosophila. a) Box plots of dN/dS values for genes with clade-wide testis-biased, ovary-biased and unbiased expression per species (clade-wide biases shown in dark red, blue, grey); b) Box plots of dN/dS values for the subset of genes with LSTs from unbiased to testis-biased status and unbiased to ovary-biased status (standard blue, red); c) dN/dS for testis-biased genes subdivided by testis-specificity, that includes genes that were testis-biased but not testis-specific (testis-biased-NS), genes that were testis-specific and not universally testis-specific (testis-specific-NU), and universally testis-specific genes (testis-specific-U); and d) The median dN/dS values for testis-biased and ovary-biased genes per fold bias category and unbiased genes for each species under study. Different letters under each set of grouped bars in panel a and c indicate a statistically significant difference (ranked ANOVA and Dunn’s paired contrast (P < 0.05) and between the two species per group in panel b (MWU-tests P < 0.05). In panel d, Spearman’s R and P values for paired contrasts of species are shown. Ts = testis-biased, Ov = ovary-biased. Also, for each fold bias category per species in panel d, testis-biased genes had higher dN/dS than ovary-biased genes (MWU-test P < 0.05)

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