Fig. 2: Phylogenetic trees of AGO and DCL involved in small RNA pathways across the Archaeplastida.

a A maximum likelihood tree for DCL genes in selected Archaeplastida species. b A maximum likelihood tree for AGO genes in selected Archaeplastida species. Bootstrap values (500 replicates) are shown on some internal branches. The ID to corresponding species names is listed in Supplementary data S3. c AU test to check the most reliable phylogeny among RAxML, Bayesian and IQ trees (for details see “Methods” and Supplementary data S5). d Sequence alignment of the ancestral AGO from K. nitens and C. atmophyticus with AGO from representative species.