Pm3b — Triticum aestivum

Summary

TRAESCS1A02G008100, symbol Pm3b (synonym RGA4) on bread wheat chromosome 1A, encodes a protein containing NB-ARC and leucine-rich repeat domains, with ADP binding, ATP binding, and metal binding activities. The gene is associated with powdery mildew resistance in wheat. It is also linked to a wide range of biological processes including gene conversion, vitamin and sulfur compound metabolism, tRNA metabolism, photosynthesis, and responses to UV-A. The encoded protein localises to the membrane and cytoplasm. Studies of related genes in other species connect the family to brown planthopper defense and nitrogen responses, while broader sequence similarity links the family to insect damage and sucrose content traits.