In vivo functional analysis of a nuclear restorer PPR protein.

ABSTRACT:

Background

Nuclear restorers of cytoplasmic male fertility (CMS) act to suppress the male sterile phenotype by down-regulating the expression of novel CMS-specifying mitochondrial genes. One such restorer gene is Rfo, which restores fertility to the radish Ogura or ogu CMS. Rfo, like most characterized restorers, encodes a pentatricopeptide repeat (PPR) protein, a family of eukaryotic proteins characterized by tandem repeats of a 35 amino acid motif. While over 400 PPR genes are found in characterized plant genomes and the importance of this gene family in organelle gene expression is widely recognized, few detailed in vivo assessments of primary structure-function relationships in this protein family have been conducted.

Results

In contrast to earlier studies, which identif

SUBMITTER: Qin X 

PROVIDER: S-EPMC4240901 | biostudies-literature | 2014 Nov

REPOSITORIES: biostudies-literature