通过抛光基于纳米孔的平分体组件来构建端粒到端粒的二分体基因组
Joshua Casey Darian1, Ritu Kundu1, Ramesh Rajaby2
1School of Computing, National University of Singapore, Singapore, Singapore.
Nature methods
|March 8, 2024
概括
我们开发了hypo-assembler,这是一个新的管道,使用牛津纳米孔 (ONT) 和Illumina测序来创建高度准确的双倍基因组组件. 这种方法显著减少了错误,甚至可以产生完整的端粒到端粒基因组.
科学领域:
- 基因组学就是基因组学.
- 生物信息学是一种生物信息学.
- 计算生物学 计算生物学
背景情况:
- 从牛津纳米孔技术 (ONT) 长时间阅读的基因组草案往往具有很高的错误率,包括不匹配,indels和单基因型切换错误.
- 现有的基因组抛光工具可能无法完全解决这些错误,从而影响最终组装的质量.
研究的目的:
- 开发新的抛光工具和管道,以从长时间读取的测序数据中提高双倍基因组组合的准确性和完整性.
- 为了应对基于ONT的基因组草稿中高错误率和哈普类型切换的特殊挑战.
主要方法:
- 开发了两种抛光工具:hypo-short (使用Illumina短读) 和hypo-hybrid (使用ONT长读).
- 创建了 hypo-assembler 管道,该管道使用 ONT 长读,Illumina 短读和可选的 Hi-C 读实现双倍基因组组装的自动化.
- 用额外的手动步骤展示端粒对端粒双倍基因组组装能力.
主要成果:
- 虚短有效地降低了基于ONT的草稿组合中的错误率和切换错误.
- 低组件生成高度准确的,连续的,几乎完整的二倍体基因组组件.
- 成功组装了一个完全分相的端粒到端粒双倍基因组 (HG00733) 的质量值超过50.
结论:
- 开发的 hypo-assembler 管道显著提高了从长时间读取测序获得的双倍基因组组件的质量.
- 这种方法提供了一个强大的解决方案,用于生成高精度,分相双倍基因组,包括具有挑战性的端粒到端粒组件.
- 这些工具和管道代表了基因组组装技术的重大进步,特别是在长时间读取数据方面.
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