Figure 1From: Evidence for GC-biased gene conversion as a driver of between-lineage differences in avian base compositionGC3 content varies substantially between different avian lineages. Total evidence nucleotide tree [33] showing differences in GC3 content between lineages. Ancestral GC3 was estimated by ML using contMap from R phytools for illustration. See Additional file 1 for species names.Back to article page