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Related Experiment Video

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Forward Genetics in African Trypanosomes.

Sebastian Hutchinson1,2, Lucy Glover3

  • 1INSERM, Unit U1201, Paris, France.

Methods in Molecular Biology (Clifton, N.J.)
|March 30, 2020
PubMed
Summary

This study presents a new protocol for genome-scale RNA interference (RNAi) screens in Trypanosoma brucei. This method allows simultaneous study of all genes involved in a specific biological process.

Keywords:
Forward geneticsHigh-throughput sequencingPhenotypic screenRNAiTrypanosoma brucei

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Area of Science:

  • Parasitology
  • Molecular Biology
  • Genetics

Background:

  • Traditional candidate-gene approaches limit the scope of genetic studies.
  • Forward genetic screens offer a powerful alternative for understanding gene function.
  • Trypanosoma brucei presents unique challenges for genetic manipulation.

Purpose of the Study:

  • To describe a comprehensive protocol for generating RNAi library strains in bloodstream form Trypanosoma brucei.
  • To detail methods for conducting genome-scale RNAi screens using drug resistance or reporter gene selection.
  • To outline the process for analyzing high-throughput sequencing data from these screens.

Main Methods:

  • Generation of RNA interference (RNAi) library strains in bloodstream form trypanosomes.
  • Screening using drug resistance selection or a reporter gene system.
  • Processing of high-throughput sequencing data for genome-wide analysis.

Main Results:

  • Successful implementation of a protocol for genome-scale RNAi library screens.
  • Demonstration of the feasibility of studying multiple genes simultaneously.
  • Establishment of a pipeline for analyzing sequencing data from large-scale screens.

Conclusions:

  • The described protocol facilitates a shift from candidate-gene studies to comprehensive, genome-wide functional genomics in Trypanosoma brucei.
  • This approach enables the simultaneous investigation of all genes essential for a given biological process.
  • The methodology provides a robust framework for future genetic screens in trypanosomes.