使用高效的本地搜索,ScisTree2可大规模推断细胞系树和基因型调用
Haotian Zhang1, Yiming Zhang1, Teng Gao2
1University of Connecticut.
Genome research
|September 3, 2025
概括
ScisTree2准确地推断细胞谱系树,并从大型单细胞数据集中调用基因型. 这种计算方法通过有效地分析复杂的进化历史来增强对发育,衰老和癌症的研究.
科学领域:
- 计算生物学
- 基因组学
- 进化生物学
背景情况:
- 多细胞生物中的细胞系具有共同的进化历史,对于理解发育,衰老和癌症至关重要.
- 单细胞测序推进了细胞谱系树推断,但数据稀疏性,噪音和规模构成了计算挑战.
研究的目的:
- 介绍ScisTree2,一种用于快速准确的细胞谱系树推断和基因型调用的新计算方法.
- 解决分析大规模单细胞数据的计算挑战,以重建进化历史.
主要方法:
- ScisTree2使用无限位模型进行细胞谱系树推断.
- 使用高效的本地搜索算法来识别最佳的遗传树.
- 基于推断的血统树结构集成单细胞基因型调用.
主要成果:
- 与模拟和真实生物数据的现有方法相比,ScisTree2显示出更高的准确性和显著提高的效率.
- 在大型数据集上实现强大的性能,处理数万个或更多的细胞.
- 介绍了第一个基于模型的细胞谱系树推断和基因型调用可扩展到庞大的单细胞数据集.
结论:
- ScisTree2为细胞谱系树推断和基因型调用提供了计算效率高和准确的解决方案.
- 通过分析大型单细胞数据集,可以更深入地了解细胞进化和疾病机制.
- 代表了单细胞基因组研究的计算工具的重大进步.
相关概念视频
Evolutionary Relationships through Genome Comparisons
6.1K
Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
6.1K
Lineage Commitment
3.1K
Commitment is the process whereby stem cells:
3.1K
Applications of Molecular Taxonomy
98
Molecular taxonomy has revolutionized the understanding and classification of bacteria, providing precise insights into their diversity, evolutionary relationships, and ecological roles. By utilizing molecular techniques such as DNA sequencing and fingerprinting, researchers have made significant strides in various fields related to bacterial studies.Resolving Taxonomic AmbiguitiesMolecular taxonomy has been instrumental in distinguishing closely related bacterial species initially thought to...
98


