SAP1 — Asparagus officinalis

Summary

A4U43_C01F2280, designated AoSAP1, encodes a protein containing AN1 and A20 zinc-finger domains and is associated with ubiquitin ligase activity, microtubule binding, DNA binding, and transmembrane receptor serine/threonine kinase activity. In asparagus, this gene is linked to defense responses, phloem transport, leaf vascular tissue pattern formation, protein ubiquitination, responses to auxin, brassinosteroid signaling, heat, and hypoxia, and osmotic response. It localizes to the plasmodesma, cytosol, plasmalemma, cytoplasm, and nucleus. Associations include leaf vein morphology, brassinosteroid sensitivity, germination rate, flowering time, salt tolerance, osmotic stress tolerance, lateral root development, and leaf senescence. Studies of related SAP family members in other species link this gene family to drought tolerance, disease resistance, ABA sensitivity, and immunity against Pseudomonas syringae.