CF-9 — Solanum lycopersicum

Summary

SOLYC01G005730.3, the tomato Cf-9 gene on chromosome 1, encodes a pattern recognition receptor (PRR) with protein serine/threonine kinase activity, ATP binding, and steroid binding functions, belonging to the RLP23-like and leucine-rich repeat (LRR) domain families. In tomato, Cf-9 is associated with resistance to Cladosporium infection, fungal resistance, leaf mould disease resistance, and a hypersensitive response to Cladosporium. It is linked to biological processes including immune response-regulating cell surface receptor signaling, activation of innate immune response, hydrogen peroxide metabolic process, defense response to parasitic plants, and immune memory response. The gene is also associated with traits such as disease tolerance, leaf chlorosis, and stomatal opening, and localizes to the plasma membrane. Studies of related genes in other species link the family to rice leaf blast disease response.