跨元基因组分类学分类器的整合性分析:在整合性长寿OMICS研究中,对肠道微生物群的衰老和长寿的案例研究
Tanya T Karagiannis1,2, Ye Chen3, Sarah Bald4
1Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, Massachusetts, United States of America.
PLoS computational biology
|January 12, 2026
概括
对微生物组分析的分类学分类器进行比较,发现使用多种方法,如MetaPhlAn和Kraken,可以比单个分类器方法更全面地了解与年龄相关的微生物变化.
科学领域:
- 微生物组研究的研究.
- 计算生物学是一种计算生物学.
- 生物信息学是一种生物信息学.
背景情况:
- 在微生物组研究中,步枪元基因组学至关重要.
- MetaPhlAn (标记基因) 和Kraken (k-mer) 是流行的分类学分类器.
- 大多数研究都使用单一的分类器,可能缺少洞察力.
研究的目的:
- 将MetaPhlAn4和Kraken2进行与年龄相关的微生物组分析.
- 评估共识和元分析方法,以整合分类器结果.
- 强调微生物组研究中多分类器策略的价值.
主要方法:
- 应用了MetaPhlAn4和Kraken2来收集两个队伍的元基因组数据.
- 分析了分类学多样性和相对丰度与年龄的关联.
- 开发和实施共识和元分析整合方法.
主要成果:
- 许多与年龄相关的微生物发现在各分类器中一致.
- 观察到特定于分类器的推断,影响了多样性指标.
- 一种元分析方法 (AdjMaxP) 在整个队列中确定了更强大的与年龄相关的类型 (17) .
结论:
- 使用多个分类学分类器可以提高微生物组分析的深度.
- 共识和元分析方法改善了强大的微生物关联的识别.
- 建议整合来自不同分类器的结果,以获得全面的微生物群洞察力.
相关概念视频
Mitochondria
19.5K
Mitochondria are eukaryotic cellular organelles that are known to produce energy through a process called oxidative phosphorylation. Besides their primary function, mitochondria are involved in various cellular processes, including cell growth, differentiation, signaling, metabolism, and senescence. Age-related changes cause a decline in mitochondrial quality and integrity due to increased mitochondrial mutations and oxidative damage. Thus, aging can severely impact mitochondrial functions,...
19.5K
The Effect of Aging on Tissues
3.2K
Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
3.2K
Modern Molecular Taxonomy
576
Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
576


