APO1 — Triticum turgidum subsp. durum

Summary

TRITD2AV1G246450 (symbol APO1, also known as TtAPO1 or ISC39) on durum wheat chromosome 2A encodes an APO domain-containing protein with RNA-binding and zinc-binding molecular functions. The gene is associated with regulation of gene expression, group II intron splicing, chloroplast organization, and chloroplast localization. APO1 is associated with grains per spike, grain number, and grain yield. Phenotypic associations include chloroplast [4Fe-4S] cluster complex accumulation, photoautotrophic growth, and accumulation of chloroplast antenna proteins, photosystem I, and NADH dehydrogenase complex. Studies of related genes in other species link the APO1 family to chloroplast group II intron splicing and chloroplast RNA splicing.