SVP — Solanum tuberosum

Summary

PGSC0003DMG400009363, designated StSVP (also known as StAGL22, StFAQ1, or STMADS16) on potato chromosome 4, encodes a MADS-box transcription factor containing MEF2-like and K-box domains. The protein exhibits DNA-binding transcription factor activity, transcription corepressor activity, and chromatin binding. StSVP is associated with downregulation of short-day photoperiodism, upregulation of vernalization response, maintenance of inflorescence and floral meristem identity, floral whorl development, and fruit abscission and dehiscence. It is linked to numerous agronomic traits including photoperiod sensitivity, flower number, fruit number, seed yield, starch content, and temperature stress response. The gene has also been connected to leaf formation, shoot morphogenesis, gibberellin catabolism, and inhibition of brassinosteroid signalling.