FLO22

2015-01-20 | Categories genes | Tags growth development starch map-based cloning oxidative R protein plant growth endosperm sucrose endosperm development

Information
- Symbol: FLO22
- MSU: LOC_Os07g08180
- RAPdb: Os07g0179000
Publication
- Rice FLOURY ENDOSPERM22, encoding a pentatricopeptide repeat protein, is involved in both mitochondrial RNA splicing and editing and is crucial for endosperm development., 2022, J Integr Plant Biol.
Genbank accession number
Key message
- The present work indicated that FLO22 plays an important role in endosperm development and plant growth by participating in nad1 maturation and multi-site editing of mitochondrial mRNA
- RNA-seq analysis showed that expression levels of many genes involved in starch and sucrose metabolism were significantly down-regulated in the flo22 mutant compared with the wild type, whereas genes related to oxidative phosphorylation and the tricarboxylic acid (TCA) cycle were significantly up-regulated
- Map-based cloning and complementation tests demonstrated that FLO22 encodes a mitochondrion-localized P-type PPR protein
- In addition to involving in splicing as a P-type PPR protein, we found that FLO22 interacted with DYW3, a DYW-type PPR protein, and they may function synergistically in mitochondrial RNA editing
Connection

Prev Next