亚热带植物科学2025，Vol.54Issue(5)：497-507,11.DOI:10.3969/j.issn.1009-7791.2025.05.002
36种黄精属植物叶绿体基因组密码子使用偏好性分析
Codon Usage Bias in the Chloroplast Genomes of 36 Polygonatum Species
摘要
Abstract
In order to explore the bias of the use of codons and and its influencing factors in the chloroplast genome of Polygonatum medicinal plants,CodonW 1.4.2,CUSP and SPSS27 were used to analyze the codon bias of 36 Polygonatum species.The results showed that the effective number of codons(ENC)ranges between 48.32 and 48.57,and the codon adaptation index(CAI)ranges between 0.166 and 0.168,indicating that the codon preference of the chloroplast genome of Polygonatum was weak.The 36 species of Polygonatum identified five common optimal codons,namely UUU,CUU,ACA,CAA and GGA,which all preferred to end with A/U nucleotides.The codon bias of 36 species of Polygonatum was mainly affected by natural selection.The results provide a theoretical basis for the genetic breeding and germplasm resources protection of Polygonatum medicinal plants.关键词
黄精属/叶绿体基因组/密码子偏好性/最优密码子/自然选择Key words
Polygonatum/chloroplast genome/codon usage bias/optimal codon/natural selection分类
农业科技引用本文复制引用
LI Hong,ZHOU Meng-li,WANG Xia,GUO Lei,WANG Rui-hong..36种黄精属植物叶绿体基因组密码子使用偏好性分析[J].亚热带植物科学,2025,54(5):497-507,11.基金项目
国家自然科学基金(31600183) （31600183）
浙江省基础公益研究计划(LGN22H280005) （LGN22H280005）
浙江理工大学基本科研业务费(24042128-Y) （24042128-Y）
浙江省"尖兵""领雁"研发攻关计划(2023C02017) （2023C02017）
