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Related Concept Videos

Next-generation Sequencing03:00

Next-generation Sequencing

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The first human genome sequencing project cost $2.7 billion and was declared complete in 2003, after 15 years of international cooperation and collaboration between several research teams and funding agencies. Today, with the advent of next-generation sequencing technologies, the cost and time of sequencing a human genome have dropped over 100 fold.
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features....
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Related Experiment Video

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Detection of Rare Genomic Variants from Pooled Sequencing Using SPLINTER
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High-resolution sweep metagenomics using fast probabilistic inference.

Tommi Mäklin1, Teemu Kallonen2,3, Sophia David4

  • 1Helsinki Institute for Information Technology HIIT, Department of Mathematics and Statistics, University of Helsinki, Helsinki, Finland.

Wellcome Open Research
|November 10, 2021
PubMed
Summary
This summary is machine-generated.

Identifying bacterial lineages below species level is difficult. The mSWEEP pipeline improves accuracy in quantifying and detecting bacterial lineages from enrichment cultures, enabling new research in plate sweep metagenomics.

Keywords:
bacterial strain identificationmetagenomicsmicrobial communitiesplate sweepsprobabilistic modeling

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Area of Science:

  • Microbiology
  • Bioinformatics
  • Genomics

Background:

  • Distinguishing closely related bacterial species is challenging due to genomic similarities.
  • Accurate identification of bacterial community composition is crucial for various research fields.

Purpose of the Study:

  • To introduce the mSWEEP pipeline for enhanced bacterial lineage identification and abundance estimation.
  • To improve the accuracy of analyzing bacterial communities from enrichment cultures.

Main Methods:

  • Developed the mSWEEP pipeline utilizing biologically grouped sequence assembly databases.
  • Applied probabilistic modeling and incorporated false positive controls.
  • Tested the pipeline on sequencing data from major pathogens.

Main Results:

  • mSWEEP demonstrated significant improvements in lineage quantification accuracy.
  • The pipeline enhanced the detection accuracy of bacterial lineages.
  • Successfully applied to cultures with mixed bacterial compositions.

Conclusions:

  • mSWEEP provides a robust method for analyzing bacterial communities at a finer resolution.
  • The pipeline facilitates deeper investigation of microbial cultures.
  • Opens new avenues for plate sweep metagenomics research.