WRKY1 — Solanum tuberosum

Summary

PGSC0003DMG400009051, designated StWRKY1 (also known as WRKY23 or WRKY46) on potato chromosome 1, encodes a WRKY transcription factor of the IIc subgroup, containing a WRKY DNA-binding domain. The protein localises to the nucleus and exhibits sequence-specific DNA binding, transcription cis-regulatory region binding, protein homodimerisation activity, and ATP binding. StWRKY1 is associated with cell wall thickening, positive regulation of leaf senescence, and responses to chitin, fungi, bacteria, salicylate, jasmonic acid, and gibberellin. It is linked to abscisic acid-mediated signalling in stomatal movement and downregulation of both abscisic acid and gibberellic acid signalling. The gene has been connected to drought tolerance and salt tolerance. Studies of related genes in other species link the family to amino acid content, proline content, anthocyanin content, and root number.