MAT4 — Solanum tuberosum

Summary

PGSC0003DMG400018292 (MAT4, also known as StMETK1 or StSAMS3) on potato chromosome 1 encodes an S-adenosylmethionine synthetase with methionine adenosyltransferase activity (EC 2.5.1.6). The gene is associated with SAM biosynthetic process, methionine metabolism, one-carbon metabolism, polyamine and lignin anabolism, sumoylation, and responses to auxin, abscisic acid, and cold. It has been linked to traits including respiration rate, callus induction, auxin content, meristem identity, leaf shape, root development, stomatal opening, abscisic acid sensitivity, and plant growth and development. Phenotypic associations include salt stress tolerance, histone methylation, methionine accumulation, lignin content, seed abortion, embryo arrest, root meristem formation, and stem cell maintenance. Studies of related genes in other species link the S-adenosylmethionine synthase family to DNA methylation, shoot regeneration, root meristem regulation, and embryo viability.