Fig. 1

Maximum likelihood phylogeny of the copia-like superfamily. The phylogeny was constructed from 493 aligned amino acid positions using the PROTCAT model, and estimated amino acid frequencies, with the RTREV substitution matrix. Values for mlBP and biPP are shown above and below the branches respectively. 100% mlBP and 1.00 biPP are both denoted by “*”. Values < 50% mlBP and < 0.70 biPP are denoted by “-”. Choanoflagellate proteins are written in light blue font. Metazoan proteins are written in dark blue, fungal proteins in brown, stramenopile proteins in orange and archaeplastid proteins in green