HiPhase:从HiFi测序中联合分期小,结构和合重复变体
James M Holt1, Christopher T Saunders1, William J Rowell1
1Computational Biology, PacBio, 1305 O'Brien Drive, Menlo Park, CA 94025, United States.
Bioinformatics (Oxford, England)
|January 25, 2024
概括
HiPhase是一个新的工具,可以分阶段小和大变体,包括结构和合重复,使用长,准确的PacBio HiFi测序读取. 它改进了现有的方法,用于二倍体生物体的变异分相.
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.
背景情况:
- 在二倍体生物体中,分阶段分配给单体类型的等位基因.
- PacBio HiFi读取提供长,准确的数据,用于变体调用和分阶段.
- 当前的工具往往无法分期更大的变体,如结构重复或合重复.
研究的目的:
- 开发一个工具,共同分期各种变体类型,包括小型和大型变体.
- 为了提高哈普洛型分期的准确性和连续性.
主要方法:
- 开发了HiPhase,一种新的分期工具.
- 使用双模式等位基因分配用于大变异检测.
- 应用了A*算法以实现高效的分阶段化.
- 嵌入式逻辑可以跨越由对齐问题引起的阶段块断裂.
主要成果:
- HiPhase 实现了 480 kb 的平均阶段块 N50 ,并有 929 个开关翻转错误.
- 93.8%的基因完全分阶段,表现优于最先进的技术.
- 联合阶段SNVs,indels,结构和合重复变体.
- 包括多线程和并发阶段对齐输出.
结论:
- 使用PacBio HiFi阅读,HiPhase有效地分期了广泛的遗传变异.
- 该工具增强了哈普洛型分期的连续性和准确性.
- HiPhase代表了变量分阶段能力的重大进步.
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