Journal of Molecular Evolution

, Volume 53, Issue 4, pp 327–332

Comparative Analysis of RNA Editing Sites in Higher Plant Chloroplasts

  • Takahiko  Tsudzuki
  • Tatsuya  Wakasugi
  • Masahiro  Sugiura

DOI: 10.1007/s002390010222

Cite this article as:
Tsudzuki, T., Wakasugi, T. & Sugiura, M. J Mol Evol (2001) 53: 327. doi:10.1007/s002390010222


Transcripts of land plant chloroplast genomes undergo C-to-U RNA editing. Systematic search disclosed 31 editing sites in tobacco, 27 in maize, and 21 in rice. Based on these identified sites, potential editing sites have been predicted in the transcripts from four angiosperm chloroplast genomes which have been completely sequenced. Most RNA editing events occur in internal codons, which result in amino-acid substitutions. The initiation codon AUG was found to be created from ACG by RNA editing in the transcripts from rpl2, psbL, and ndhD genes. Comparison of editing patterns raises a possibility that many editing sites were acquired in the evolution of angiosperms.

Key words: Angiosperm — Chloroplast — Initiation codon — RNA editing — Tobacco — Transcript

Copyright information

© Springer-Verlag New York Inc. 2001

Authors and Affiliations

  • Takahiko  Tsudzuki
    • 1
  • Tatsuya  Wakasugi
    • 2
  • Masahiro  Sugiura
    • 3
  1. 1.Computer Center, Aichi-Gakuin University, Araike 12, Iwasaki, Nisshin 470-0795, JapanJP
  2. 2.Department of Biology, Toyama University, Gofuku 3190, Toyama 930-8555, JapanJP
  3. 3.Graduate School of Natural Sciences, Nagoya City University, Yamanhata, Mizuho, Nagoya 467-8501, JapanJP