Fig. 3

Analyses of transposable elements in oyster genomes. a Pie charts in proportion to genome size, indicating the proportions of repeat types present in the genome of each oyster species. The charts show a high contribution from transposable elements, and especially DNA transposons. b Overview of the insertional context of repeats in the Magallana hongkongensis genome, indicating that these are split relatively equally between genic and integenic locations. c Summary of transposable element activity in each oyster genome. These plots suggest a gradual increase in activity, peaking relatively recently, that was driven by increased proliferation of DNA and rolling circle transposons