叶绿体基因组结构和13种西藏兰叶科植物的植物遗传学分析
Yiming Niu1, Qian Qin1, Yanjing Dong1
1The Research Center for Traditional Chinese Medicine Resources and Ethnic Minority Medicine, Jiangxi University of Chinese Medicine, 330004 Nanchang, Jiangxi, China.
Frontiers in bioscience (Landmark edition)
|July 3, 2023
概括
这项研究测序了来自西藏的13个Lamiaceae叶绿体 (cp) 基因组,揭示了保存的结构,并确定了高度突变的区域. 遗传学分析证实了与形态分类一致的关系.
科学领域:
- 基因组学就是基因组学.
- 植物科学 植物科学
- 生物信息学是一种生物信息学.
背景情况:
- 叶绿体 (cp) 基因组的保存性使其对植物识别,分类和进化研究具有价值.
- 了解Lamiaceae家族的演化,可以从详细的cp基因组分析中获益.
研究的目的:
- 测序,组装和注释来自西藏的13种兰科植物的cp基因组.
- 为拉米亚科家族构建家族遗传树,以了解它们的进化关系.
- 为了识别这些cp基因组内的遗传标记和变异.
主要方法:
- 用生物信息学测序,组装和注释了13种拉米亚科植物的全质体 (cp) 基因组.
- 用最大概率 (ML) 分析与97个cp基因组构建了家族遗传树.
- 分析了简单序列重复 (SSR) 和核酸多样性.
主要成果:
- 所有13个cp基因组都表现出典型的四段结构 (LSC,IR,SSC),长度介于149,081152,312bp和37.6%的GC含量之间.
- 标注的基因包括8688的蛋白质编码,3738的tRNA和8个rRNA基因. 确定了542个SSR位点,主要是单核酸重复.
- 在LSC和SSC地区发现了两个高度突变的区域,IR边界显示保存,除了Nepeta laevigata*.
结论:
- 对97种Lamiaceaecp基因组的遗传学分析将它们分为八个类,与子家族和部落级别的形态分类保持一致.
- cp基因组数据为Lamiaceae系统学和进化研究提供了坚实的基础.
- 特定的cp基因组区域被确定为未来人口遗传学和条码研究的潜在有用区域.
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