HB51 — Brassica oleracea

Summary

BoHB51, also known as BoLMI1, encodes a homeodomain-leucine zipper (HD-Zip) class I transcription factor that localises to the nucleus and binds sequence-specific DNA and RNA polymerase II. In cabbage, this gene is associated with leaf formation and morphogenesis, floral meristem determinacy, the timing of the vegetative-to-reproductive transition, and responses to hormones and lipids. It has also been connected to virus-induced post-transcriptional gene silencing and to traits such as flower colour, leaf shape, and meristem identity. Phenotypic associations include bract formation, altered leaf proportion, and enhanced meristem identity defects with increased secondary inflorescences and bracts. Related genes in other species link the family to leaf morphology, floral organ identity, and bract morphology traits.