PPI2 — Pisum sativum

Summary

PSAT7G064640 (PPI2, PsPPI2) on garden pea chromosome 7LG7 encodes a protein with domains characteristic of the Toc159 family, including Toc86_159 and TOC159_MAD, and is annotated with chloroplast targeting sequence receptor activity and protein translocase activity. The gene is associated with the Toc and Tic complexes, chloroplast membranes, and thylakoids, and is linked to protein-chloroplast targeting, chloroplast stroma protein import, and regulation of photosynthesis. Associations include downregulation of photosynthesis, regulation of stomatal opening, and responses to cold, carbon dioxide, and absence of light. Traits connected to PPI2 encompass photosynthetic rate, water use efficiency, biomass yield, seed yield, seed viability, leaf color, flowering time, and stress responses including low temperature tolerance. Studies of related genes in other species link the family to plastid protein import, chloroplast development, photosystem II quantum yield, and stomatal ABA responsiveness.