MADS2 — Triticum aestivum

Summary

TRAESCS3D02G401700 (symbol MADS2, also known as PI-PLC2) on wheat chromosome 3D encodes a MADS-box transcription factor containing MEF2-like and K-box domains, with RNA polymerase II-specific DNA-binding and protein dimerization activities. The gene is associated with resistance to powdery mildew in wheat, and with specification of petal, stamen and floral meristem identity, as well as flower and seed development. It is linked to numerous agronomic traits including grain yield, grain length and width, spikelet number, days to heading and maturity, leaf rust disease response, starch content, and mineral concentrations such as copper, phosphorus, zinc, iron and cadmium. The encoded protein localises to the nucleus and is connected to pathways including ent-kaurene biosynthesis and phenylalanine degradation. Studies of related genes in other species link the family to floral development and organ size.