平虫的转录体揭示了由菌虫引起的广泛的寄生病
M Ryan Woodcock1,2,3, Kaleigh Powers1, Kirsten Snead2,4
1Department of Biology, Keene State College, Keene, NH, USA.
bioRxiv : the preprint server for biology
|September 25, 2023
概括
吸血虫状动物,包括Tetrahymena,寄生于平虫. 生物信息学在Platyhelminthes中发现了成千上万的状转录,证实了新物种中的寄生虫行为,并暗示了共进化.
科学领域:
- 寄生虫学的寄生虫学
- 生物信息学是一种生物信息学.
- 进化生物学 进化生物学
背景情况:
- 单细胞状动物,如Tetrahymena,是已知的细菌食动物,但也可以是寄生虫,以宿主组织为食.
- 这些吸血性纤毛动物感染了一系列宿主,包括鱼和淡水.
- 平面虫是已知的宿主,但在Platyhelminthes中状寄生虫的程度尚未完全理解.
研究的目的:
- 通过使用一种新的生物信息学方法,调查Platyhelminthes中状寄生虫的流行和多样性.
- 为了确定状动物和平虫之间的新宿主-寄生虫关系.
- 为了探索食状动物及其宿主Platyhelminthes之间的共同进化动态.
主要方法:
- 开发一个生物信息学管道,考虑非标准的毛动物遗传密码.
- 选了超过260万个Platyhelminthes表达序列标签 (ESTs) 的 Ciliophora序列.
- 从各种平面物种中培养和识别Tetrahymena.
主要成果:
- 识别了近6000个高保证度的状体转录,支持7种额外的平虫物种的寄生主义.
- 从九种平面物种中成功培养和识别了Tetrahymena,包括入侵生物和模型生物.
- 科菲尔基因分析提供了强有力的证据,证明了吸血虫状动物和Platyhelminthes宿主的共同进化.
结论:
- 形甲虫 (Platyhelminthes) 作为一个重要的宿主群体,用于食状动物,具有共同进化的潜力.
- 侵入性平虫可能会作为Tetrahymena寄生虫的新型传播载体.
- 这项研究确立了Platyhelminthes作为一个有价值的模型系统,用于研究食状动物的生态和进化.
- 帕罗莫米辛治疗提供了一种方法来研究Tetrahymena对平面生物学的影响.
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