Fig. 1

Schematic representation of the conserved protein domain architecture of Polycomb group (PcG) complexes. The in silico identification of the PRC2 and PRC1 core components in hexaploid wheat was supported by protein alignment with known homologs fromArabidopsisand barley PRC2 and PRC1 and by prediction of main functional protein domains. Homologs of the PRC2 (a) and PRC1 (b) core subunits share highly conserved protein domains amongArabidopsis thaliana(At),Hordeum vulgare(Hv),Triticum dicoccoides(Td) andTriticum aestivum(Ta). Proteins in the figure are representatives of each homologous group from Hv, Td and Ta, which share the same domains and differ only by protein length