HSS — Brassica oleracea

Summary

BoHSS (BOLC102_C03P069430.1) on cabbage chromosome 3 encodes a protein with transcription corepressor activity, protein heterodimerization activity, sequence-specific DNA binding, protein kinase activity, transcription cis-regulatory region binding, identical protein binding, protein serine/threonine kinase activity, protein homodimerization activity, DNA binding transcription factor activity, and protein binding, and contains ARF, AUX/IAA, and B3 DNA-binding domains. It is associated with negative regulation of transcription by RNA polymerase II, inhibition of brassinosteroid mediated signalling, downregulation of cell proliferation, maintenance of floral meristem identity, fruit ripening, fruit dehiscence, floral organ abscission, root hair cell differentiation, vacuole organization, and gibberellic acid homeostasis. The gene is linked to numerous traits including flower, petal, sepal, stamen, and inflorescence morphology, flowering time, photoperiod-sensitive flowering time, auxin sensitivity, abscisic acid sensitivity, jasmonic acid content, root thickness, seed growth, chloroplast development, low temperature stress response, disease tolerance, and salt tolerance. Studies of related genes in other species connect the family to organ size, senescence, seed mass, drought tolerance, chlorophyll biosynthesis, root growth, and resistance to Sclerotinia sclerotiorum.