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。
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.
出处
《生物技术通报》
CAS
CSCD
北大核心
2013年第5期73-76,共4页
Biotechnology Bulletin
关键词
进化
叶绿体
RNA编辑
非维管植物
维管植物
Evolution Chloroplast RNA editing Non-vascular land plants Vascular land plants
