CCR — Zea mays

Summary

ZmCCR (ZM00001EB307060) on maize chromosome 7 encodes a cinnamoyl-CoA reductase (EC 1.2.1.44), an NAD(P)-dependent oxidoreductase with a dehydratase/epimerase domain. The gene is associated with lignin metabolism, cell wall assembly, and ear and seed development. It has been linked to numerous agronomic traits including plant height, stem length, grain filling period, grain number, grain size, grain yield, cellulose content, photosynthetic rate, transpiration rate, stomatal resistance, seed dormancy, and seed shattering. Additional associations include flower color, plant fresh weight, brittle culm, IAA content, and culm length. The gene is also connected to lignin content, saccharification yield, male sterility, drought and cold stress responses, salt tolerance, senescence, immunity, and plastid development. Studies of related genes in other species link the CCR family to cell wall structure, disease resistance, and abiotic stress tolerance.