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生物MAP:一个生物导体友好的,GPU加速的管道,用于二硫酸盐测序数据.

Nicholas J Eagles1, Richard Wilton2, Andrew E Jaffe1

  • 1Lieber Institute for Brain Development, Johns Hopkins Medical Campus, Baltimore, 21205, USA.

BMC bioinformatics
|September 13, 2023
PubMed
概括

BiocMAP使用GPU对齐和内存高效的数据处理加速了全基因组二硫酸盐测序 (WGBS) 分析. 这一管道使得复杂的基因组甲基化分析对研究人员来说更容易获得,并且在计算上更可行.

关键词:
亚里奥克亚里奥克 (Arioc Arioc) 是一种有色的植物.生物导体是一种生物导体.管道管道 管道管道管道这是WGBS的WGBS.

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科学领域:

  • 基因组学就是基因组学.
  • 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
  • 生物信息学是一种生物信息学.

背景情况:

  • 全基因组双硫酸盐测序 (WGBS) 对于理解疾病中的表观遗传修饰至关重要.
  • 传统的WGBS工作流程在读取对齐和内存密集型数据处理方面面临计算瓶.
  • 现有的管道对于研究人员来说可能是不切实际的,因为计算要求很高.

研究的目的:

  • 为WGBS数据分析开发一个计算效率高和储存效率高的管道.
  • 使用GPU加速软件加快对齐步骤.
  • 为更广泛的可访问性提供一个生物导体友好的工作流程.

主要方法:

  • 使用Nextflow实现了一个由两个模块组成的管道,BiocMAP.
  • 模块1使用Arioc,这是一个GPU加速的对齐器,用于计算密集的读取对齐.
  • 模块2在没有GPU的环境中提取和合并DNA甲基化比例,使用磁盘上的数据表示.

主要成果:

  • 生物MAP显著减少了WGBS对齐的计算时间.
  • 该管道通过磁盘上的数据表示,大大降低了主内存需求.
  • 生物MAP的输出对象与R和生物导体兼容,提高了可用性.

结论:

  • 生物MAP为WGBS分析提供了可复制和高效的解决方案.
  • 该管道通过容器化 (Docker,Singularity) 和调度器 (SLURM,SGE) 支持各种计算环境.
  • 生物MAP促进与现有的开源分析工具进行整合,以获取甲基化数据.