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对状菌根真菌中可移植元素的分析支持与细丝植物病原体的进化并行

Jordana I N Oliveira¹, Catrina Lane¹, Ken Mugambi¹

¹Department of Biology, University of Ottawa, Ottawa, ON K1N 6N5, Canada.

Genome biology and evolution

|March 28, 2025

概括

可转移的元素推动了有益的状菌根真菌基因组的多样性. 这些DNA序列影响基因调节和蛋白质进化,类似于植物病原体中的机制.

科学领域:

基因组学就是基因组学.
进化生物学进化生物学
菌类学菌类学是指菌类学.

背景情况:

可转移元素 (TE) 是移动DNA序列,影响基因组进化.
状菌根真菌 (AMF) 拥有庞大的,富含 TE 的基因组,在 TE 丰度和演化方面存在显著差异.
了解AMF中的TE动态对于它们作为植物共生体的作用至关重要.

研究的目的:

综合调查TEs在所有已知的状菌根真菌家族中的功能和演变.
了解 TE 活动如何为 AMF 产品线的多样化做出贡献.
探索TEs对AMF基因调节和效应蛋白演化的影响.

主要方法:

来自各种AMF家族的组装基因组的比较基因组学分析.
可转移元素插入和活动的识别和表征.
与基因相对 TE 局部化的分析,特别是候选效应因子和促进因子.

主要成果:

确定了多个可转移元素插入的家族特异性突发,表明在AMF谱系中具有可变的TE活性.
可转移的元素优先位于候选效应体/分泌蛋白质基因和促进体附近.
转基因有助于参与宿主-共生体相互作用和基因调节的蛋白质的多样化.

结论:

可转移的元素在塑造基因组和推动状菌根真菌进化的过程中发挥着重要作用.
TEs有助于AMF中效应蛋白和基因调节的多样性,影响它们的共生能力.
在AMF中观察到的TE进化机制类似于线状植物病原体中的进化机制,这表明趋同的进化压力.

关键词:

有效分子蛋白质的作用.移动基因组是一个移动基因组.植物共生体是植物的共生体.一个重复性的DNA DNA.

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