B-1 — Sorghum bicolor

Summary

SORBI_3006G102400 (symbol SbB-1) on sorghum chromosome 6 encodes a protein with multiple annotated molecular functions, including hexose, monosaccharide, carbohydrate and nitrate transmembrane transporter activities, as well as red/far-red light photoreceptor activity, phosphorelay sensor kinase activity, calcium-dependent protein serine/threonine kinase activity, protein phosphatase activity, and histidine kinase activity. The protein belongs to the MFS sugar transporter family. SbB-1 is associated with monosaccharide and nitrate transmembrane transport, potassium ion import and homeostasis, sucrose anabolism, abscisic acid metabolism, regulation of stomatal opening, basipetal auxin transport, and responses to nutrients and light stimuli. It is linked to traits including photosynthetic ability, biomass yield, carotenoid content, photoperiod-sensitive flowering time, water stress response, leaf drying and curling, root and shoot morphology, and sensitivities to various nutrients and light conditions. Related genes in other species connect the family to nitrate translocation, salt tolerance, and cadmium resistance.