陆生植物叶绿体RNA编辑进化分析

生物技术通报 ›› 2013, Vol. 0 ›› Issue (5): 73-76.

陆生植物叶绿体RNA编辑进化分析

万平

(首都师范大学生命科学学院，北京 100048)

收稿日期:2012-11-12 修回日期:2013-05-24 出版日期:2013-05-24 发布日期:2013-05-24
作者简介:万平，男，博士，研究方向：生物信息学；E-mail ：wanp_cnu@yahoo.com.cn

Evolution of RNA Editing in Land Plant Chloroplasts

Wan Ping

(College of Life Science, Capital Normal University, Beijing 100048)

Received:2012-11-12 Revised:2013-05-24 Published:2013-05-24 Online:2013-05-24

摘要/Abstract

摘要： RNA编辑现象存在于除地钱外的所有陆生植物中。对非维管植物(角苔、苔藓)和维管植物(蕨类、双子叶植物)中1 514个C-U RNA编辑位点从氨基酸转移概率、密码子转移概率、编辑位点在密码子中的位置、编辑位点-1位置碱基出现频率以及编辑位点+1位置碱基出现频率5个方面进行分析发现，双子叶植物叶绿体RNA编辑在密码子转移方面与其他陆生植物类群存在显著差异。

关键词: 进化, 叶绿体, RNA编辑, 非维管植物, 维管植物

Abstract: RNA editing has been observed in the chloroplasts of all land plants analyzed to date with the exception of liverworts. In this study, we analyzed the 1 514 chloroplast RNA editing sites from non-vascular plants (hornwort and moss) and vascular land plants (fern and eudicot) in features of the probability of amino acid transition, the probability of codon transition, the probability of position of editing site occurring in the codon, the probability of the occurrence of four bases at the minus 1 position near the RNA editing site, and the probability of the occurrence of four bases at the plus 1 position near the RNA editing site. We found that the codon transition of chloroplast RNA editing eudicot is significantly different from that of other plant groups.

Key words: Evolution, Chloroplast, RNA editing, Non-vascular land plants, Vascular land plants

万平. 陆生植物叶绿体RNA编辑进化分析[J]. 生物技术通报, 2013, 0(5): 73-76.

Wan Ping. Evolution of RNA Editing in Land Plant Chloroplasts[J]. Biotechnology Bulletin, 2013, 0(5): 73-76.

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