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Related Concept Videos

Modern Molecular Taxonomy01:29

Modern Molecular Taxonomy

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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...
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Applications of Molecular Taxonomy01:20

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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...
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Correction to: Changes in hepatitis a seroprevalence over 11 years and the impact of the national vaccination program in Bursa, Türkiye.

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Related Experiment Video

Updated: Feb 28, 2026

Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing
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Basic Microbiome Analysis: Analytical Steps from Sampling to Sequencing.

Gülfem Ece1, Ahmet Aktaş2, Özlem Koyuncu Özyurt3

  • 1Department of Medical Microbiology, İzmir City Hospital, İzmir 35540, Türkiye.

Microorganisms
|February 27, 2026
PubMed
Summary

Methodological variability in human microbiome research hinders reproducibility. This review evaluates current methods from sampling to bioinformatics, emphasizing the need for standardized protocols to advance clinical translation.

Keywords:
bioinformatics pipelinescomputational microbiologyhuman microbiomemachine learningmetagenomicsshotgun metagenomics

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Area of Science:

  • Microbiome research
  • Genomics
  • Bioinformatics

Background:

  • The human microbiome is crucial for health and disease.
  • Methodological inconsistencies limit reproducibility and clinical applications.
  • Current research faces challenges in standardization across all study phases.

Purpose of the Study:

  • To review and critically evaluate current microbiome research methodologies.
  • To identify limitations and biases in pre-analytical, sequencing, and bioinformatics steps.
  • To highlight the need for harmonized protocols for improved reproducibility.

Main Methods:

  • Synthesis of current approaches in microbiome research.
  • Critical evaluation of sampling, nucleic acid extraction, and sequencing technologies.
  • Comparison of bioinformatics pipelines and reference databases.
  • Discussion of integrative multi-omics approaches.

Main Results:

  • Pre-analytical factors significantly introduce bias in microbial community profiles.
  • Various sequencing technologies (16S rRNA, shotgun metagenomics, long-read) offer different resolutions.
  • Bioinformatics pipelines and databases vary in taxonomic and functional profiling.
  • Lack of standardized workflows impedes inter-study comparability and biomarker validation.

Conclusions:

  • Standardized protocols are essential for reliable microbiome research.
  • Harmonization across all research stages is needed to ensure reproducibility.
  • Addressing methodological variability will accelerate the clinical translation of microbiome findings.