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GenomeFingerprinter 及用于系统比较基因组学的通用基因组指纹分析

GenomeFingerprinter and universal genome fingerprint analysis for systematic comparative genomics

State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University(中山大学生命科学学院,生物控制国家重点实验室)

Yuncan Ai, Hannan Ai, Fanmei Meng, Lei Zhao

AI总结:

提出 GenomeFingerprinter 方法,通过从序列生成三维坐标并绘制指纹图谱,结合通用基因组指纹分析(UGFM)和系统比较基因组学(SCG),实现跨遗传类别(染色体、质粒、噬菌体)和大尺寸范围(Kbp 到 Mbp)的基因组快速比较。

摘要:

如何大规模比较全基因组序列尚未通过基于成对碱基比较的传统方法实现;然而,目前尚未关注一次性处理跨越遗传类别(染色体、质粒和噬菌体)且具有较大分歧(同源性很少或没有)以及大尺寸范围(从Kbp到Mbp)的多个基因组。我们创建了一种新方法GenomeFingerprinter,能够从序列明确生成三维坐标,随后通过一个三维图和六个二维轨迹投影来展示全基因组指纹。我们进一步开发了一套概念和工具,从而建立了一种新方法——通用基因组指纹分析。我们通过对一百多个基因组序列的案例研究展示了它们的应用。特别是,我们定义了总遗传组分配置(TGCC)(即染色体、质粒和噬菌体)用于将菌株描述为一个系统,以及TGCC的通用基因组指纹图谱(UGFM)用于将菌株区分为一个通用系统,以及系统比较基因组学(SCG)用于一次性比较不同菌株中跨越遗传类别的多个基因组。通过使用UGFM、UGFM-TGCC和UGFM-TGCC-SCG,我们比较了多个具有较大分歧(染色体、质粒和噬菌体;细菌、古细菌和病毒)且尺寸范围大(6Kbp~5Mbp)的基因组序列,为后基因组时代微生物基因组学中的关键问题提供了新见解。本文提供了一种新方法,用于在指纹水平上快速计算、几何可视化和直观比较基因组序列,从而为系统比较基因组学建立了一种通用基因组指纹分析的新方法。

英文摘要:

How to compare whole genome sequences at large scale has not been achieved via conventional methods based on pair-wisely base-to-base comparison; nevertheless, no attention was paid to handle in-one-sitting a number of genomes crossing genetic category (chromosome, plasmid, and phage) with farther divergences (much less or no homologous) over large size ranges (from Kbp to Mbp). We created a new method, GenomeFingerprinter, to unambiguously produce three-dimensional coordinates from a sequence, followed by one three-dimensional plot and six two-dimensional trajectory projections to illustrate whole genome fingerprints. We further developed a set of concepts and tools and thereby established a new method, universal genome fingerprint analysis. We demonstrated their applications through case studies on over a hundred of genome sequences. Particularly, we defined the total genetic component configuration (TGCC) (i.e., chromosome, plasmid, and phage) for describing a strain as a system, and the universal genome fingerprint map (UGFM) of TGCC for differentiating a strain as a universal system, as well as the systematic comparative genomics (SCG) for comparing in-one-sitting a number of genomes crossing genetic category in diverse strains. By using UGFM, UGFM-TGCC, and UGFM-TGCC-SCG, we compared a number of genome sequences with farther divergences (chromosome, plasmid, and phage; bacterium, archaeal bacterium, and virus) over large size ranges (6Kbp~5Mbp), giving new insights into critical problematic issues in microbial genomics in the post-genomic era. This paper provided a new method for rapidly computing, geometrically visualizing, and intuitively comparing genome sequences at fingerprint level, and hence established a new method of universal genome fingerprint analysis for systematic comparative genomics.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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