HI4'OMT — Medicago truncatula

Summary

MTR_4G033015, designated HI4'OMT, encodes a protein with flavanone 4'-O-methyltransferase activity on barrel medic chromosome 4. The product belongs to the COMT-like and SAM-dependent methyltransferase superfamilies and exhibits multiple O-methyltransferase activities, including isoflavone 4'-O-methyltransferase and 6a-hydroxymaackiain-3-O-methyltransferase activity. This gene is associated with isoflavonoid phytoalexin anabolism, chalcone anabolism, jasmonic acid anabolism, phenylpropanoid metabolism, cell wall modification, nodulation, and salinity response. It has been linked to salt tolerance and to agronomic traits including plant height, leaf size, and petiole length. Studies of related genes in other species link the family to additional O-methyltransferase activities (EC 2.1.1.231, 2.1.1.270, 2.1.1.46, 2.1.1.212, and 2.1.1.150).