Empty pericarp7 encodes a mitochondrial E-subgroup pentatricopeptide repeat protein that is required

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RNA editing,converting cytidines(C) to uridines(U) at specific sites in the transcripts of mitochondria and plastids,plays a critical role in organelle gene expression in land plants.Recently pentatricopeptide repeat(PPR) proteins were identified as site-specific recognition factors for RNA editing.
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