VRN2 — Brassica oleracea

Summary

BoVRN2 (BOLC102_C01P026880.1) on cabbage chromosome 1 encodes a Polycomb-group protein containing Znf_SUZ12 and VEFS-Box domains, with histone H3K27 trimethylase, chromatin-binding and transcription-corepressor-binding activities. It is associated with photoperiodism, flowering-time regulation, vernalization response, and the vegetative-to-reproductive phase transition. The gene is linked to reproductive processes, endosperm and seed development, trichome differentiation, shoot morphogenesis, and cellular cold response. Associations include leaf water potential, sulfur and oleic acid content, anthocyanin content, auxin levels, ethylene and abscisic acid sensitivity, disease tolerance, and root system architecture. It localizes to PcG and chromatin-silencing complexes, euchromatin, heterochromatin, and plasmodesmata. Studies of related genes in other species link the family to H3K27me3 histone modification, shoot apical meristem development, drought stress response, and fungal resistance.