PPO2 (TRAESCS2B02G366300) — triticum aestivum
Summary
TRAESCS2B02G366300, designated PPO2 on bread wheat chromosome 2B, encodes a protoporphyrinogen oxidase (EC 1.3.3.4) with oxygen-dependent protoporphyrinogen oxidase activity, FAD or FADH2 binding, and redox activity. The gene is associated with porphyrin-containing compound biosynthesis, heme and chlorophyll anabolism, embryo development ending in seed dormancy, and epigenetic regulation of gene expression. It has been connected to grain flour browning, shrunken endosperm, flour color, seed shape, seed weight, grain size, grain weight, and starch content. The product localizes to plastid thylakoid and chloroplast membranes, as well as mitochondrial inner membranes. Studies of related genes in other species link the family to grain color, plant height, root length, and grain yield.
Annotations
- Chromosome
- 2B
- Related genes
- PPO2, WRI, DEL1, TRAESCS1B02G308800, E2F1, SIZ2, TRAESCSU02G075300, TRAESCS4A02G214700
- GO terms
- heme anabolism, Mitochondrial Inner Membrane, GO:0006782, Plastid, FAD or FADH2 binding, Embryo Development Ending In Seed Dormancy, mitochondria, secondary metabolism
- Publications
- 27990150, 31614786, PMID:16618929, PMID:12938931, PMID:20061580, PMID:28887381, PMID:18089549, PMID:17098813
- Traits
- protoporphyrinogen oxidase activity, embryo viability, tetrapyrrole biosynthesis, Grain size, Grain yield, Grain color, Plant height, Grain weight