HSP70 — Capsicum annuum

Summary

CaHSP70 (T459_12019) on pepper chromosome 4 encodes a transmembrane protein 50 homolog belonging to the UPF0220 domain family. The gene is associated with multiple stress-related biological processes, including response to heat, defense response, ABA signaling, cell death, and virus-induced PTGS, as well as signal transduction and endosome-to-vacuole transport via the MVB sorting pathway. It is linked to membrane localisation and has been connected to fruit length, plant height, and photosynthetic rate. Studies of related genes in other species associate the family with additional traits including drought tolerance, seed weight, chlorophyll content, and net photosynthetic rate, though these relationships are not yet established in pepper.