中国烟草学报2012，Vol.18Issue(2)：37-43,7.DOI:10.3969/j.issn.1004-5708.2012.02.009
烟草叶绿体密码子的偏好性及聚类分析
Codon usage bias studies and cluster analysis on chloroplastic genes in tobacco
摘要
Abstract
Softwares were used to analyze codon usage bias of 6 genes encoded by chloroplast DNA from 3 species in Nicotiana genus and other control species. Results showed that the codon usage in Nicotiana Tabacum was close to that of Nicotiana sylvestris. Among the 59 codons analyzed, 39 were totally the same in terms of RSCU (Relative Synonymous Codon Usage) value. 30 codons were revealed to be preferable to be used in the CDS (Coding DNA Sequence) of 6 genes encoded in chloroplast from these 8 species. Among these 8 species, the codons of 7 dicotyledon plants tended to end with C while those of rice preferred to end with T or C. Cluster analysis results based on the RSCU value showed that the codon usage bias was related to genes encoded by chloroplast of the plant species. The cluster results of the RSCU from chloroplast genes could be used as a complementary method for systematic developmental analysis.关键词
烟草/叶绿体基因/密码子偏好性/聚类分析Key words
tobacco/chloroplastic gene/codon usage bias/cluster analysis分类
农业科技引用本文复制引用
杨惠娟,刘国顺,张松涛,崔红..烟草叶绿体密码子的偏好性及聚类分析[J].中国烟草学报,2012,18(2):37-43,7.基金项目
河南省教育厅自然科学基础研究计划项目(2011A210019) （2011A210019）
