[1]李兴,任毅,马娟,等.牛蒡叶绿体基因组密码子偏好性分析[J].江苏农业科学,2025,53(22):193-201.
 Li Xing,et al.Analysis of codon usage bias in chloroplast genome of Arctium lappa L.[J].Jiangsu Agricultural Sciences,2025,53(22):193-201.
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牛蒡叶绿体基因组密码子偏好性分析()

《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第53卷
期数:
2025年第22期
页码:
193-201
栏目:
园艺与林学
出版日期:
2025-11-20

文章信息/Info

Title:
Analysis of codon usage bias in chloroplast genome of Arctium lappa L.
作者:
李兴1任毅1马娟1赵嘉晨3李锦萍12
1.青海师范大学生命科学学院,青海西宁 810016; 2.青海师范大学高原科学与可持续发展研究院,青海西宁 810016;3.陕西中医药大学生命科学学院,陕西咸阳 712046
Author(s):
Li Xinget al
关键词:
牛蒡叶绿体基因组最优密码子自然选择菊科
Keywords:
-
分类号:
S188;S567.23+9.01
DOI:
-
文献标志码:
A
摘要:
本研究旨在探讨牛蒡叶绿体基因组中密码子的使用偏好,并分析其主要影响因素,同时确定最优密码子,为菊科植物叶绿体基因组研究提供参考。根据NCBI数据库中GenBank登录号MH375874.1,下载牛蒡叶绿体基因序列构建图谱分析,并筛选出49条CDS序列利用Codon W、CUSP、Excel及SPSS软件进行参数获取、绘图以及最优密码子分析。牛蒡叶绿体基因组全长152 767 bp,GC含量为37.87%,且GC1(46.05%)>GC2(37.97%)>GC3(29.61%),密码子第3位碱基倾向以A/U结束;ENC值均大于35,CAI均值为0.171,CBI均值为-0.093,Fop均值为0.356,这些指标共同表明其密码子偏好性较弱;通过ENC-plot绘图、PR2-plot绘图以及中性绘图分析,发现自然选择是塑造密码子使用偏好的主要驱动因素。最终鉴定出14个最优密码子,其中仅有1个以G结尾密码子,其余密码子均以A或U结尾。研究表明,影响牛蒡叶绿体基因组密码子偏好性形成的关键因素是自然选择,该研究为深入挖掘和利用牛蒡的潜在价值提供了理论依据。
Abstract:
-

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2024-11-21
基金项目:青海省科技计划应用基础研究项目(编号:2023-ZJ-749)。
作者简介:李兴(2000—),男,陕西泾阳人,硕士研究生,主要从事药用植物资源评价研究。E-mail:lx20242024@126.com。
通信作者:李锦萍,博士,教授,主要从事资源生理生态学及资源化学等研究。E-mail:2008ljp@163.com。
更新日期/Last Update: 2025-11-20