进化关系和T-BAS互动的植物病原体新兴系谱的植物病原体Phytophthora ramorum的系谱
Amanda Mainello-Land1, Richard O'Hanlon2, Ignazio Carbone3
1North Carolina State University, Entomology and Plant Pathology, Campus Box 7213, Raleigh, North Carolina, United States, 27695; amainelloland@gmail.com.
Phytopathology
|January 7, 2026
概括
致使木突然死亡的Phytophthora ramorum具有一种新的交互性分化,揭示了它的进化历史. 这种工具有助于追踪病原体的传播和全球血统的毒性.
科学领域:
- 植物病理学 植物病理学
- 进化生物学 进化生物学
- 生物信息学是一种生物信息学.
背景情况:
- 在北美和欧洲,Phytophthora ramorum造成了毁灭性的突然树死亡和突然虫死亡.
- 现存的P. ramorum有12个不同的血统,它们在地理分布和病原性上有所不同.
- 以前的遗传学分析缺乏互动性和全面的全球血统表征.
研究的目的:
- 为 Phytophthora ramorum 构建一个动态和交互的最大概率的原生.
- 包括所有已知的全球血统,包括来自东亚,北美和欧洲的血统.
- 提供对P. ramorum血统之间的进化关系的最新理解.
主要方法:
- 使用IQ-TREE和基于树的对齐选择器工具包 (T-BAS) 的家族遗传学分析.
- 根据六个遗传位点推断的系系: avh120, avh121, btub, gweuk.30.30.1, hsp90和 trp1.
- 包括来自全球多个分离的序列数据,包括爱尔兰和北爱尔兰.
主要成果:
- 在T-BAS基因组中,NP1和NP2系是北美NA1和NA2系的祖先.
- 东亚IC1-IC4血统被确定为欧洲EU1和EU2血统的祖先.
- 种系学准确地将来自爱尔兰和北爱尔兰的新测序的分离物定位.
结论:
- 交互式P. ramorum基因组为了解病原体进化提供了一个改进的框架.
- 这种工具促进了新血统的整合,并增强了进化关系的跟踪.
- 研究社区可以通过DeCIFR平台的T-BAS访问类型学.
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