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Updated: May 12, 2025

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使用CycloneSEQ高效地构建完整的基因组,以填补细菌草稿组件中的空白

Hewei Liang^1,2,3, Yuanqiang Zou^3,4, Mengmeng Wang^1,5

¹BGI Research, Shenzhen 518083, China.

GigaByte (Hong Kong, China)

|May 7, 2025

概括

风SEQ长读数测序,结合DNBSEQ短读数,可以实现高质量,完整的圆形基因组组合. 这种混合方法克服了微生物基因组学短读测序的局限性.

科学领域:

微生物基因组学微生物基因组学
下一代测序技术是下一代的测序技术.

背景情况:

短读测序平台 (Illumina,DNBSEQ) 具有成本效益,但产生碎片化的基因组草稿.
在组装完整的微生物基因组的局限性阻碍了全面的分析.

研究的目的:

评估CycloneSEQ长读测序,以组装完整的圆形微生物基因组.
评估混合组装的有效性,将长读数和短读数结合起来.

主要方法:

使用CycloneSEQ进行长读序列 (平均长度为11.6kbp).
进行了混合组装,将CycloneSEQ长读数与DNBSEQ短读数集成在一起.
在九种微生物物种中验证了该方法.

主要成果:

与参考基因组相比,实现了高精度的混合组合,错误率低 (0.04个不匹配,每100kbp0.08个indels).
成功组装了完整的圆形基因组,包括多副本的rRNA基因,这仅仅是短读的挑战.
确定最佳数据要求:>500 Mbp的短读数据与100 Mbp的长读数据用于高质量的组件.

结论:

气旋SEQ长读显著提高基因组完整性和精度在混合组装.
混合方法对于从微生物群体中组装完整的循环基因组是有效的.
建议进一步提高CycloneSEQ的基础质量,而DNBSEQ的整合提高了整体准确性.

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相关概念视频

Genome Annotation and Assembly

Genome Annotation and Assembly

The genome refers to all of the genetic material in an organism. It can range from a few million base pairs in microbial cells to several billion base pairs in many eukaryotic organisms. Genome assembly refers to the process of taking the DNA sequencing data and putting it all back together in a correct order to create a close representation of the original genome. This is followed by the identification of functional elements on the newly assembled genome, a process called genome annotation.