MADS2 — Solanum lycopersicum

Summary

SOLYC05G012020.4, symbol MADS2, encodes a MADS-box transcription factor on tomato chromosome 5. The protein contains MADS-box and K-box domains and exhibits sequence-specific DNA-binding transcription factor activity and protein dimerization activity, localizing to the nucleus. MADS2 is associated with diverse biological processes including lutein anabolism, capsanthin anabolism, carotenoid breakdown, ethene metabolism, C4 photosynthesis, and cell wall organization. It is linked to floral development traits such as sepal size, petal size, flower color, flower abortion, carpel formation, bract development, and floral organ identity. Agronomically, MADS2 has been connected to fruit traits including fruit color, firmness, size, and lycopene, carotene, sucrose, sugar, and anthocyanin content, as well as plant height, root length, stem diameter, lignin content, seed maturation, respiration rate, stomatal resistance, photochemical quenching, and oxidative stress response.