PPR — Capsicum annuum

Summary

CaPPR (T459_25498) on pepper chromosome 10 encodes a pentatricopeptide repeat (PPR) protein with an Smr domain, and its product is annotated for mRNA binding. The gene is associated with cytoplasmic male sterility. Studies of related genes in other species link the family to additional traits including pungency, leaf color, lycopene content, pollen fertility, chlorophyll content, drought tolerance, and salt tolerance, though these associations are not yet established for CaPPR itself. The encoded protein is predicted to localise to the chloroplast based on ontology annotation.