A fertility restorer gene, Rf4, widely used for hybrid rice breeding encodes a pentatricopeptide repeat protein

Rice OGR1 encodes a pentatricopeptide repeat-DYW protein and is essential for RNA editing in mitochondria.

RNA editing is the alteration of RNA sequences via insertion, deletion and conversion of nucleotides. In flowering plants, specific cytidine residues of RNA transcribed from organellar genomes are converted into uridines. Approximately 35 editing sites are present in the chloroplasts of higher plants; six pentatricopeptide repeat genes involved in RNA editing have been identified in Arabidopsis...

شناسایی لاین های بازگرداننده باروری با استفاده از نشانگرهای STS در ارقام مختلف برنج ایران

In order to identify restorer lines in hybrid rice system, sixty lines and cultivars were studied. Two STS makers of RG140 that is linked to Rf3 locus on chromosome 1 and S10019 that is linked to Rf4 locus on chromosome 10 were used to screen restorer line .Then, after digestion with two restriction-enzymes (EcoRI and FnudII), the results showed that 27 lines had Rf3 gene, 3 lines had Rf4 gene ...

PPR8522 encodes a chloroplast-targeted pentatricopeptide repeat protein necessary for maize embryogenesis and vegetative development

The pentatricopeptide repeat (PPR) domain is an RNA binding domain allowing members of the PPR superfamily to participate in post-transcriptional processing of organellar RNA. Loss of PPR8522 from maize (Zea mays) confers an embryo-specific (emb) phenotype. The emb8522 mutation was isolated in an active Mutator (Mu) population and co-segregation analysis revealed that it was tightly linked to a...

Controversy remains: regulation of pH gradient across the thylakoid membrane.

17 Desloire, S. et al. (2003) Identification of the fertility restoration locus, Rfo, in radish, as a member of the pentatricopeptide-repeat protein family. EMBO Rep. 4, 588–594 18 Koizuka, N. et al. (2003) Genetic characterization of a pentatricopeptide repeat protein gene, orf687, that restores fertility in the cytoplasmic male-sterile Kosena radish. Plant J. 34, 407–415 19 Kazama, T. and Tor...

The rice restorer Rf4 for wild-abortive cytoplasmic male sterility encodes a mitochondrial-localized PPR protein that functions in reduction of WA352 transcripts.