Fig. 2.—

Relationship between lineage-specific EBRs and TEs in avian species. The phylogenetic tree is based on (Jarvis et al. 2014). Red bars indicate a significant enrichment of TEs from one or more abundant avian TE families (LINE-CR1, LTR-ERVL, LTR-ERVK, and LTR-ERV1) in lineage-specific EBRs (P value <0.05; FDR < 10%); green bars show significant negative associations of TEs with lineage-specific EBRs (P value <0.05; FDR < 10%); and grey bars indicate elevated numbers of the TE families in lineage EBRs (higher number of TEs in EBRs compared to the rest of the genome but not reaching a significance level of P value <0.05 and FDR < 10% likely due to a low number of lineage-specific EBRs resulting in low power of the statistical test).