RNA Editing of Cytochrome Oxidase Subunit III in Sunflower Mitochondria | Zendy

Adolfo Saiardi | Zendy; Carla Quagliariello | Zendy

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RNA Editing of Cytochrome Oxidase Subunit III in Sunflower Mitochondria

Author(s) -

Adolfo Saiardi,

Carla Quagliariello

Publication year - 1992

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.98.4.1261

Subject(s) - rna editing , cytochrome c oxidase , biology , alternative oxidase , rna , messenger rna , sunflower , rna splicing , mitochondrion , biochemistry , protein subunit , mitochondrial dna , stop codon , genetics , gene , microbiology and biotechnology , agronomy

Direct sequencing of cytochrome oxidase subunit III (coxIII) mRNA with a specific primer confirms RNA editing in sunflower (Helianthus annus) mitochondria. Six instances of mRNA editing could be verified, one of these specific to this species. All the editing events involve C to U transitions in the coxIII mRNA causing codon changes that lead to amino acids better conserved in evolution than those encoded in the genomic DNA. This observation confirms RNA editing to be widespread in higher plant mitochondria.

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