“…Still, our insight into PRC2 evolution in the green lineage is limited (reviewed in the work of [ 250 ]), and most of the current understanding of plant PRC2 composition or function comes from studies in the dicot flowering plant model Arabidopsis thaliana (reviewed in the work of [ 3 , 18 , 45 , 47 , 101 , 251 , 252 , 253 ]) and monocot crop species such as rice ( Oryza sativa ) [ 91 , 254 ], maize ( Zea mays) [ 94 , 255 ], and, more recently, bread wheat ( Triticum aestivum ) [ 97 ]. Information on PRC2 structure and function in the green lineage outside of angiosperms is scarce; however, a recent study in Norway spruce ( Picea abies ) brought first insights into gymnosperm PRC2 function [ 92 ]. Conservation of PRC2 subunits in bryophytes [ 89 ] together with the determination of their developmental roles [ 61 , 62 , 256 ] and recent elucidation of H3K27me3 distribution [ 166 , 257 ] brought first insights into PRC2 function in non-vascular land plants.…”