Fig. 1
From: Prediction of gene expression regulation by human microRNAs in Plasmodium falciparum

Phylogenetic tree of the Alveolata superphylum. The phyla for those the existence of an RNA interference pathway has been demonstrated are denoted in bold. The only known phylum of alveolates – Toxoplasma – is known to possess genes encoding microRNAs and the components of the RISC; for this reason its name is underlined. The names of the phyla for which corresponding studies are lacking are given in brackets. Adapted from Fig. 1 in [9]