BUD1 — Solanum lycopersicum

Summary

SlBUD1 (SOLYC03G097920.1) on tomato chromosome 3 encodes a protein kinase with MAPKK activity, protein serine/threonine kinase activity, and protein tyrosine kinase activity. It is associated with diverse biological processes including regulation of signal transduction, pollen-pistil interaction, gibberellin metabolism, and microtubule dynamics. The gene has been linked to numerous agronomically important traits such as harvest index, seed weight, fruit shape, plant height, stem diameter, sugar content, anthocyanin content, photosynthetic rate, and drought tolerance. Associations also include disease resistance, systemic acquired resistance, ethylene signaling, stomatal development, gravitropism, lateral root development, and phosphate acquisition. The protein localizes to the nucleus, cytoplasm, plasmalemma, mitochondria, and microtubule organizing center. Related genes in other species link the family to immunity, auxin transport, and leaf senescence.