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汇集和表征Ventilago leiocarpa的完整线粒体基因组

Song Guo^1,2, Zeyang Li^1,2, Chunlian Li^1,2

¹College of Food and Biochemical Engineering, Guangxi Science and Technology Normal University, Guangxi Laibin, 546199, People's Republic of China.

Plant cell reports

|February 22, 2024

概括

测序了Ventilago leiocarpa的第一个线粒体基因组,揭示了复杂的结构和545个RNA编辑站点. 这项研究提供了关键的见解线粒体基因表达在这个医学上重要的Rhamnaceae家族植物.

科学领域:

植物基因组学植物基因组学
线粒体DNA研究的研究.
药用植物研究的研究.

背景情况:

藻 (Ventilago leiocarpa) 是拉姆菜科的一种植物,在它的根中具有药用特性.
了解植物线粒体基因组对于进化和功能研究至关重要.
之前对V. leiocarpa的基因组数据,特别是它的线粒基因组,缺乏.

研究的目的:

报告Ventilago leiocarpa.的完整的线粒体基因组序列.
为了研究V. leiocarpa线索基因组中的结构复杂性和RNA编辑事件.
为研究这种物种中的线粒体基因表达提供基础数据.

主要方法:

使用BGI短读和纳米孔长读,组装V. leiocarpa线粒基因组.
蛋白质编码,tRNA和rRNA基因的注释.
使用长读映射,PCR和桑格测序确认分支结构.
与其他 Rosales 线粒体基因组进行比较分析.
使用Deepred-mt,PCR和桑格测序识别和验证RNA编辑部位.

主要成果:

V. leiocarpa的线粒基因组长达331,839bp,包含36个蛋白质编码,16个tRNA和3个rRNA基因.
证实了复杂的分支结构,特定的结合形成圆形或线性分子.
确定了10个线粒体塑序列 (MTPT),包括完整的蛋白质编码和tRNA基因.
总共有545个RNA编辑部位被确定,包括在特定基因中验证的停止和启动编码子 (例如,atp9-223,rps10-391,nad4L-2).
对比分析显示,罗萨莱斯菌群中存在显著的结构差异.

结论:

第一个完整的Ventilago leiocarpa线粒体基因组已经成功组装和注释.
这项研究揭示了复杂的线粒体基因组结构和众多RNA编辑部位,影响基因表达.
这些发现为植物线粒体基因组的演变和功能提供了宝贵的见解,特别是对于医学上相关的物种.

关键词:

在新的组装 De novo.线粒体基因组的基因组线粒体塑基因组DNA的DNA 编辑RNA的网站温蒂拉戈 (Ventilago leiocarpa) 是一种状的鱼类.

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