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作为适应温度变化的Pseudofabraea citricarpa的功能进化

Saifei Liu¹, Li Chen², Xinghua Qiao²

¹Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), College of Plant Protection, Southwest University, Beibei, Chongqing 400716, China.

Journal of fungi (Basel, Switzerland)

|February 23, 2024

概括

类点 Pseudofabraea citricarpa在温暖的地区显示出更高的耐热性和病原性. 基因组分析揭示了关键的基因差异,包括酸盐氧酶,推动了这种进化.

科学领域:

植物病理学植物病理学
菌类学菌类学是指菌类学.
基因组学就是基因组学.
气候变化生物学气候变化生物学

背景情况:

的目标点,由Pseudofabraea citricarpa引起,此前被认为是耐寒的.
这种疾病现在正在从高度地区扩散到低度地区,这表明了适应.
了解这种传播背后的进化机制对于疾病管理至关重要.

研究的目的:

为了比较两个不同度的Pseudofabraea citricarpa菌株的生理和基因组特征.
在低度菌株中调查热耐受性和致病性增加的遗传基础.
阐明植物病原体适应气候变化的进化策略.

主要方法:

在两个真菌菌株 (CQWZ和SXCG) 上进行生理观察和致病性测定.
对比基因组分析,包括基因组测序和对线性分析.
基因注释侧重于代谢途径,氧化应激和毒性因素.
分析与代谢物产生和调节途径相关的基因集群.

主要成果:

低度CQWZ菌株表现出比高度SXCG菌株更高的耐温性和病原性.
基因组分析揭示了基因组大小,重组和基因含量的差异.
CQWZ在异生菌代谢中拥有更多的基因 (包括酸盐基酶) 和特定的毒性因子,如热冲击蛋白和LysM效应器.
在代谢物生产途径和HOG信号通路中发现了显著的差异.

结论:

Pseudofabraea citricarpa正在发展出增强的耐热性和致病性,促进其扩散到新的地区.
基因组适应,特别是在异生物代谢和应激反应途径中,是这种进化的关键驱动力.
研究结果提供了全球气候变化下的病原体适应机制的见解,有助于未来的疾病控制策略.

关键词:

果点是果的目标点.进行比较的基因组学.高温适应能力适应性适应性病毒性进化的演化.

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