系统地识别动员载荷的遗传元素,揭示了真核生物多样性的新维度
Emile Gluck-Thaler1,2,3, Aaron A Vogan4
1Laboratory of Evolutionary Genetics, Institute of Biology, University of Neuchâtel, Neuchâtel, Neuchâtel 2000, Switzerland.
Nucleic acids research
|April 30, 2024
概括
我们开发了海星,这是一个用于注释真核细胞移动遗传元素的计算工具,称为星际飞船. 这种工具显著扩大了在真菌基因组中发现这些元素的范围,揭示了它们的多样性和快速进化.
科学领域:
- 遗传学 是一个遗传学.
- 计算生物学 计算生物学
- 菌类学 菌类学是指菌类学.
背景情况:
- 载荷移动元件 (CMEs) 是能够转移蛋白质编码序列的遗传实体.
- 由于缺乏高效的注释工具,真核生物CME,特别是巨型真菌星际飞船,人们对其了解甚少.
- 手动策划星际飞船是耗时的,阻碍了功能和多样性研究.
研究的目的:
- 开发一个计算工作流程,用于对真核生物CME的高通量注释.
- 为了使星际飞船多样性,功能和基因组整合策略的大规模调查.
- 建立一个框架,以推进真核生物中的移动元素生物学.
主要方法:
- 开发"海星",用于真核生物CME注释的计算工作流程.
- 将海星应用于来自1649种真菌的2899个基因组.
- 星际飞船多样性,货物和插入地点偏好的分析.
主要成果:
- 海星达到了95%的精度和已知的星际飞船的召回,增加了十倍的注释元素.
- 确定了11个不同的星际船家族,在各种真菌类中具有不同的丰富模式.
- 观察到家族内的快速载荷演变和融合插入到5SrDNA和AT丰富区域.
结论:
- 海星工作流程为真核生物CME注释提供了一个可扩展的解决方案.
- 星际飞船的多样性和快速进化表明,它们对真菌基因组动力学和适应有重大贡献.
- 这项工作通过移动元素探索真核生物遗传多样性的新途径.
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