Fig. 4

Dispatching of Copia clusters in clades among metazoan taxa and their environment. Taxa are arranged according to a simplified classification shown on the left (C = Chelicerata, D = Deuterostomia, S = Sarcopterygii, A = Amniota) and their global environment is indicated by colour (marine/brackish in blue, freshwater in green, and terrestrial in brown). The number of genomes represents those with at least one Copia RT/RNaseH sequence identifiable in distance trees out of the total number of species studied. The clades are organized into 2 sets according to their comparable distribution among taxa. Clades represented only by orphan sequences are illustrated with a 0