Figure 3.—

Lineage-specific evolutionary acceleration of testis-specific, SFP, and spermatogenesis genes. Branch lengths proportional to the number of genes with ω-values significantly higher on the foreground than background branch for genes (A) expressed specifically in head, testis, and ovary, (B) encoding SFPs, (C) encoding FRTPs, and (D) involved in spermatogenesis and oogenesis. Internal branch lengths indicate results for branch tests using the internal branch, as well as all daughter branches. Data are not available for the sim-sec branch.