重建Phytophthora infestans向哥伦比亚的全球迁移历史
Camilo Patarroyo1,2, Florencia Lucca3, Stéphane Dupas2
1Department of Biological Sciences, Universidad de los Andes, Bogotá 111711, Colombia.
Phytopathology
|June 18, 2024
概括
马晚期病是由Phytophthora infestans引起的,可能起源于秘鲁. 全球移民模式表明,最初传播到哥伦比亚和墨西哥,然后到欧洲和亚洲,没有回到南美洲.
科学领域:
- 植物病理学 植物病理学
- 进化生物学 进化生物学
- 遗传学 是一个遗传学.
背景情况:
- 植物病原体的进化,特别是Phytophthora infestans,是由全球迁移驱动的,这给疾病管理带来了挑战.
- 了解北美和欧洲以外的Phytophthora infestans迁徙路线对于疾病控制至关重要.
- 马晚期腐烂是一种重要的农业疾病,由菌体Phytophthora infestans引起.
研究的目的:
- 为了阐明来自哥伦比亚人口的Phytophthora感染者的迁移历史.
- 测试关于Phytophthora infestans的起源和全球迁移路线的假设.
主要方法:
- 利用来自全球人口的1,706个Phytophthora infestans基因型的数据集.
- 采用描述性分析和历史记录来制定迁移假设.
- 应用近似贝叶斯计算来测试三个不同的全球移民场景.
主要成果:
- 最可能的情况表明,Phytophthora infestans.的秘鲁起源.
- 迁移很可能从秘鲁到哥伦比亚和墨西哥,然后到欧洲和亚洲,没有返回南美洲.
- 在哥伦比亚,从秘鲁单次迁移,然后在国内传播是最可能的情况.
结论:
- 这些结果支持Phytophthora infestans的秘鲁起源.
- 全球殖民事件似乎很罕见,对疾病传播有重大影响.
- 了解病原体迁移是有效的植物疾病管理策略的关键.
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