Additional file 2: of Evolution of salivary glue genes in Drosophila species

Figure S1. Ancestral states for the Sgs1–3–7-8 gene family inferred by CAFE. Species tips are labeled with the observed gene count and internal nodes are labeled with inferred gene counts. Orange branches represent gene losses, blue branches represent gene gains, while black branches represent lineages in which no change in gene copy number is observed. Branches marked with asterisks have marginally significant p-values (< 0.05). (PDF 173 kb)