Figure 5. TE variation, siRNA–targeting, and differences in proximal gene expression.
(a) Average absolute difference in gene expression for TE− genes (yellow), InvTE+ genes (cyan) and VarTE+ (navy) genes. MWU p[TE−/TE+]<2×10−16, p[InvTE+/VarTE+] = 2×10−5. Expression divergence is also shown for InvTE+ genes divided by whether the proximal TEs are invariably (orange) or variably (red) targeted by siRNA. (b) TE− genes (yellow), InvTE+ (cyan) genes and VarTE+ (navy) genes were divided into subgroups depending on their polymorphism levels. Genes were binned by polymorphism levels into 0–2%, 2–4% and >4% groups. The average absolute change in expression level for each subgroup of genes is shown. ** = p<0.01. Standard errors are shown.