摘要
植物中RNA编辑发生在叶绿体和线粒体两种细胞器中,通过对非维管植物(角苔)和维管植物(蕨类和被子植物)线粒体中4 892个RNA编辑位点和叶绿体中1 228个RNA编辑位点的(1)氨基酸转移概率、(2)密码子转移概率、(3)编辑位点在密码子中出现位置概率(、4)编辑位点-1位碱基出现概率(、5)编辑位点+1位碱基出现概率5个方面进行比较分析。结果发现,被子植物中线粒体和叶绿体RNA编辑在氨基酸转移概率、密码子转移概率方面存在显著差异。
In plants, the process of RNA editing occurs in organelles chloroplasts and mitochondria. In this work, we analyzed the 4 89：2 mitochondrial RNA editing sites and ! 228 chloroplastic RNA editing sites of non-vascular and vascular land plants in features of （ 1 ） the probabilities of amino acid transitions, （ ：2 ） the probabilities of codon transitions, （ 3 ） the probabilities of positions of editing site occurring in the codon, （ 4 ） the probabilities of the occurrence of four bases at the minus 1 position near the RNA editing site, and （ 5 ） the probabilities of the occurrence of four bases at the plus 1 position near the RNA editing site. We find that in eudicot, the probabilities of amino acid transitions and the probabilities of codon transitions are both significantly different between mitochondrial and chloroplast RNA editing.
出处
《生物技术通报》
CAS
CSCD
北大核心
2013年第3期90-95,共6页
Biotechnology Bulletin
关键词
非维管植物
维管植物
线粒体
叶绿体
RNA编辑
Non-vascular land plants
Vascular land plants
Mitochondrion
Chloroplast
RNA editing
