BOLC102_C02P005230.1_BOLC102_V1 — Brassica oleracea

Summary

BoHY5, encoded by gene BOLC102_C02P005230.1 on cabbage chromosome 2, is a bZIP transcription factor of the Hac1/HY5 family with DNA-binding transcription activator activity specific to RNA polymerase II. It also exhibits phytochrome binding, red/far-red light photoreceptor activity, and nuclear import signal receptor activity. In cabbage, BoHY5 is associated with regulation of the phytochrome signaling pathway, upregulation of photosynthesis and lateral root development, cellular water homeostasis, sucrose-mediated signaling, and responses to light intensity and UV-A. The gene is linked to numerous agronomic traits including leaf area and angle, seedling cotyledon size, root system morphology, fruit quality, seed coat hardness, osmotic adjustment capacity, cadmium concentration, and glyphosate sensitivity. Studies of related genes in other species connect the family to light-mediated development, flavonol biosynthesis, salt stress tolerance, and grain yield.