APO1 — Triticum turgidum subsp. durum

Summary

TRITD2BV1G208090 (symbol APO1, also known as TtAPO1 or ISC39) on durum wheat chromosome 2B encodes a protein containing an APO domain and is associated with RNA binding and zinc binding. The gene is linked to regulation of gene expression, group II intron splicing, and chloroplast organization, and its product localizes to the chloroplast. APO1 is associated with grain number, grains per spike, and grain yield, as well as with accumulation of chloroplast [4Fe-4S] clusters, photosystem I, NADH dehydrogenase complex, and antenna proteins, and with photoautotrophic growth. Studies of related genes in other species link the APO1 family to chloroplast group II intron splicing and RNA splicing.