PG2 — Zea mays

Summary

ZM00001EB129970 (PG2, also known as ZmPGL13) on maize chromosome 3 encodes a polygalacturonase with a Glyco_hydro_28 domain and pectin lyase fold. The gene is associated with pollen adhesion, cell wall modification involved in abscission, aerenchyma formation, and carbohydrate breakdown, and its product localises to the apoplast and extracellular space. Associations include traits such as grain yield, plant height, spike length, biomass yield, cellulose content, heterosis, cytoplasmic male sterility, pollen fertility, leaf rolling, brittle culm, and salt tolerance. Studies of related genes in other species link the family to drought tolerance, bacterial blight resistance, and plant development.