VRN2 — Brassica oleracea var. botrytis

Summary

BoVRN2, located on cauliflower chromosome 1, encodes a Polycomb-group protein containing Znf_SUZ12 and VEFS-Box domains with histone H3K27 trimethylase, H3 histone acetylase, GTP cyclohydrolase II, chromatin and DNA binding, and transcription factor activities. It is associated with photoperiodism, flowering time, vernalization response, cellular response to cold, reproductive processes, seed and endosperm development, trichome differentiation, shoot morphogenesis, callus formation, and epigenetic gene silencing. The gene is linked to traits including days to flowering, photoperiod sensitivity, vegetative to reproductive phase transition, leaf water potential, sulfur and oleic acid content, anthocyanin content, auxin content, ethylene and abscisic acid sensitivity, disease tolerance, and root meristem development. It localizes to PcG protein complexes, chromatin silencing complexes, euchromatin, heterochromatin, and nuclear speckles. Related genes in other species are linked to H3K27me3 modification, drought stress response, and shoot apical meristem development.