GO enrichment analysis of protein-coding genes associated with siRNA21 or siRNA24 loci. (A) Frequency of enriched GO terms in the 38 species analyzed (hbr-b0, tcc-b1.1, fan-b1.0, mdm-b3.0, csi-b2, ccm-b0.32, ccm-b0.1, can-b1.6, nta-b0, and hvu-b1 were excluded because no gene annotation or no GO annotation was available). (B) Species distribution of well-conserved enriched GO terms, common to 10 or more plant species (car-b2.0, egu-b5.1, mac-b2, pab-b1.0c, ppt-b3.0, and mpo-b3.0 were not displayed because they were not enriched in any of these terms). Each row is a given species (for species codes, see Table 1), grouped taxonomically. (Eu) Eudicots; (BA) basal angiosperm.
