使用Recomb-Mix进行快速准确的当地祖先推断
Yuan Wei1, Degui Zhi2, Shaojie Zhang1
1Department of Computer Science, University of Central Florida, Orlando, FL, USA.
bioRxiv : the preprint server for biology
|November 28, 2023
概括
在混合种群中,Recomb-Mix增强了局部祖先推断 (LAI),改善了大型生物库中的遗传结构分析. 与现有方法相比,这种新方法提供了更高的精度和效率.
科学领域:
- 遗传学 是一个遗传学.
- 生物信息学是一种生物信息学.
- 人口遗传学 人口遗传学
背景情况:
- 大型基因型队列为混合种群中的高分辨率遗传结构分析提供了机会.
- 当地祖先推断 (LAI) 是至关重要的,但面临着类似的参考人群,众多的参考或深层混合事件的挑战.
研究的目的:
- 引入Recomb-Mix,一种用于局部祖先推断 (LAI) 的新方法.
- 提高LAI在复杂混合群体中的准确性和效率.
主要方法:
- 复合混合集成了李和斯蒂芬斯的模型与一个新的图形崩技术.
- 该方法简化了具有相同祖先标签读数的计数路径.
主要成果:
- 在各种模拟场景中,Recomb-Mix在现有的LAI方法中表现出卓越的准确性.
- 该方法显示了具有竞争力的资源效率.
结论:
- 复合混合是一种有价值的工具,用于推进混合种群的遗传研究.
- 该方法预计对于具有复杂混合历史的大型生物库特别有用.
相关概念视频
Homologous Recombination
4.6K
4.6K
Conservative Site-specific Recombination and Phase Variation
6.0K
Because the DNA segments are cut and reorganized in a direction-specific manner, site-specific recombination has emerged as an efficient genetic engineering technique. Flippase and Cyclization recombinases or Flp and Cre, respectively, are two members of the tyrosine recombinase family derived from bacteriophages, that are used to mediate site-specific DNA insertions, deletions, and targeted expression of proteins in mammalian cell lines.
The recognition sites for Cre recombinase called LoxP...
The recognition sites for Cre recombinase called LoxP...
6.0K
Exon Recombination
3.6K
The evolution of new genes is critical for speciation. Exon recombination, also known as exon shuffling or domain shuffling, is an important means of new gene formation. It is observed across vertebrates, invertebrates, and in some plants such as potatoes and sunflowers. During exon recombination, exons from the same or different genes recombine and produce new exon-intron combinations, which might evolve into new genes.
Exon shuffling follows “splice frame rules.” Each exon...
Exon shuffling follows “splice frame rules.” Each exon...
3.6K
Viral Recombination
23.5K
Cells are sometimes infected by more than one virus at once. When two viruses disassemble to expose their genomes for replication in the same cell, similar regions of their genomes can pair together and exchange sequences in a process called recombination. Alternatively, viruses with segmented genomes can swap segments in a process called reassortment.
23.5K
Evolutionary Relationships through Genome Comparisons
5.8K
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...
5.8K
Gene Conversion
9.8K
Other than maintaining genome stability via DNA repair, homologous recombination plays an important role in diversifying the genome. In fact, the recombination of sequences forms the molecular basis of genomic evolution. Random and non-random permutations of genomic sequences create a library of new amalgamated sequences. These newly formed genomes can determine the fitness and survival of cells. In bacteria, homologous and non-homologous types of recombination lead to the evolution of new...
9.8K


