HB51 — Brassica oleracea var. botrytis

Summary

BoHB51, also known as HB51 or BoLMI1, encodes a homeodomain leucine zipper (HD-Zip) class I transcription factor on cauliflower chromosome 3. The protein localises to the nucleus and exhibits DNA-binding transcription factor activity, sequence-specific DNA binding, and identical protein binding. This gene is associated with bract morphogenesis, floral meristem determinacy, leaf morphogenesis, flower development, and the regulation of vegetative-to-reproductive phase transition. It has also been connected to responses to lipids, hormones, and thirst. Phenotypic associations include bract formation, leaf morphology and proportion, floral meristem identity, and enhanced meristem identity defects with increased secondary inflorescences and bracts. Related genes in other species are linked to leaf shape, leaf position, flower colour, and floral organ identity traits.