可转移的元素在星际飞船上穿越真菌基因组
Hanne Griem-Krey1, Júlia de Fraga Sant'Ana2, Ursula Oggenfuss3
1Fungal Evolutionary Genetics, Christian-Albrechts University of Kiel, Kiel, Germany.
Nature communications
|February 11, 2026
概括
大型转位子称为星际飞船,在真菌中促进可转位元素 (TEs) 的水平转移. 这种转移可以导致遗传变异和TE活动的爆发,影响真菌特征,如致病性.
科学领域:
- 遗传学 是一个遗传学.
- 菌类学 菌类学是指菌类学.
- 进化生物学 进化生物学
背景情况:
- 可转移元素 (TE) 的水平转移是真核生物中遗传变异的重要驱动因素.
- TE活动通常与进化爆发和基因组变化有关.
研究的目的:
- 为了研究最近的一种可转移元素 (TE) 在昆虫病原菌 Metarhizium anisopliae.e.中爆发.
- 确定星际飞船在调解跨真菌物种的TE水平转移中的作用.
主要方法:
- 在Metarhizium anisopliae中分析TE活性和基因组结构.
- 在522种真菌物种中,星际舰元素的比较基因组学.
- 与星际飞船相关的特E的识别和水平转移的签名.
主要成果:
- 最近在Metarhizium anisopliae中发现了一个TE爆发,与通过星际飞船引入积极转移TE有关.
- 这种TE爆发与广泛的染色体重组和病原性丧失相关.
- 星际飞船被发现是菌中TE水平转移的普遍载体,75%的藏着TE,许多显示最近的爆发活动.
结论:
- 星际飞船是菌中水平TE转移的主要载体.
- 太空船介导的TE转移可以导致显著的基因组变化,并影响真菌特征,包括病原性.
- 了解星际飞船-TE相互作用为真菌基因组进化和适应提供了洞察力.
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