Plant and Cell Physiology Advance Access published online on December 14, 2006
Plant and Cell Physiology, doi:10.1093/pcp/pcl058
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Identification of RNA editing sites in chloroplast transcripts of Phalaenopsis aphrodite and comparative analysis with those of other seed plants
1Institute of Biotechnology, National Cheng Kung University, Tainan, Taiwan 701
2Department of Biological Science and Technology, Meiho Institute of Technology, Pingtung, Taiwan 912
Corresponding author: Ching-Chun Chang, 1 Ta-Hsueh Rd. Tainan, Taiwan 701, Tel: +886-6-2757575 ext. 65623 Fax: +886-6-2766505 E-mail: chingcc{at}mail.ncku.edu.tw
| Abstract |
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RNA editing sites were systematically examined for the transcripts of 74 known protein-coding genes in the chloroplasts of Phalaenopsis aphrodite. A total of 44 editing sites were identified in twenty-four transcripts, the highest reported in seed plants. In addition, twenty-one editing sites are unique to Phalaenopsis orchid as compared to other seed plants. All editing is C-to-U conversion, and 42 sites of editing bring about the change in amino acids. One of the remaining two editing sites occurs in the transcripts of ndhB pseudogene, and another in the 5' untranslated region of psbH transcripts.
Keywords: chloroplast - moth orchid - Phalaenopsis aphrodite - RNA editing
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