BUM — Brassica oleracea

Summary

BoBUM (BOLC102_C09P020550.1_BOLC102_V1) on cabbage chromosome 9 encodes a homeodomain-containing protein with KNOX1, KNOX2, and ELK domains, and is annotated as a DNA-binding transcription factor with RNA polymerase II cis-regulatory region binding activity. This gene is associated with shoot meristem identity and maintenance, floral meristem identity, shoot organ boundary specification, floral whorl morphogenesis, internode patterning, and secondary shoot formation. It is linked to regulation of gibberellin biosynthesis and cytokinin anabolism, as well as downregulation of cell proliferation and protein transport. Associations include plant architecture, flowering time, leaf curling, phyllotaxy, peduncle length, fruit development, and vascular tissue morphology. The gene localizes to the nucleus, cytosol, plasmodesma, and microtubule cytoskeleton. Related genes in other species link the family to shoot apical meristem development, compound leaf morphology, and axillary meristem formation.