Evolution of RNA Editing in Land Plant Mitochondria

Abstract

Abstract: Mitochondria harbor the greatest number of RNA editing sites, why RNA editing emerges so frequently in mitochondria is unclear. In this study, we analyzed the 6 838 mitochondrial RNA editing sites from hornwort, clubmoss, fern, conifer, cycad, monocot and eudicot in features of(1)the probability of amino acid transition, (2)the probability of codon transition, (3)the probability of position of editing site occurring in the codon, (4)the probability of the occurrence of four bases at the minus 1 position near the RNA editing site, and(5)the probability of the occurrence of four bases at the plus 1 position near the RNA editing site. We find that the codon transition of mitochondrial RNA editing in angiosperms(monocot and eudicot)is significantly different from that of other plant groups.

Key words: Evolution, Plant mitochondria, RNA editing, Monocot and eudicot

Wan Ping. Evolution of RNA Editing in Land Plant Mitochondria[J]. Biotechnology Bulletin, 2013, 0(6): 99-103.

References

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