一个实用的组装指南,用于基因组具有不同级别的异构性
Takako Mochizuki1, Mika Sakamoto1, Yasuhiro Tanizawa1
1Genome Informatics Laboratory, National Institute of Genetics.
Briefings in bioinformatics
|October 5, 2023
概括
这项研究系统地评估了长时间读取的基因组组件,用于具有不同异构性变异的双倍基因组. 它提供了使用高性能组装器进行 Haplotype 重建,抛光和 Haplotig 移除的指导方针.
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:
- 长读测序有助于基因组组装,但存在较高的错误率.
- 现有的组装器缺乏系统评估双倍基因组跨异构性水平.
研究的目的:
- 系统地评估二倍体基因组的长读汇编器.
- 制定基于异合性的最佳基因组重建指南.
- 评估 de novo 的组装,抛光和 haplotig 移除策略.
主要方法:
- 评估了六个具有多样性异构性双体基因组.
- 评估了五个长时间的只读 (Canu,Flye,miniasm,NextDenovo,Redbean) 和五个混合组装器 (HASLR,MaSuRCA,Platanus-allee,SPAdes,WENGAN). 这两种组装器都被评估了.
- 包括基因组特征估计,新组装,抛光和基结合去除.
主要成果:
- 确定了Redbean,Fly和MaSuRCA作为稳定和高性能组装厂商.
- 建立了一个指导方针,以构建基于异构的哈普类型表示.
- 证明了有效的抛光和形净化策略.
结论:
- 系统评估为选择组装器和二倍体基因组重建策略提供了一个框架.
- 指导方针有助于在不同的异质合体性中准确地表现单双型和基因组组装.
- 推的组装器为复杂的双倍基因组提供了强大的性能.
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