4.3 Article

Tools for the Genetic Manipulation of Herpetomonas muscarum

Journal

G3-GENES GENOMES GENETICS
Volume 10, Issue 5, Pages 1613-1616

Publisher

GENETICS SOCIETY AMERICA
DOI: 10.1534/g3.120.401048

Keywords

Herpetomonas; Trypanosomatid; Monoxenous; Parasite; Drosophila

Funding

  1. ERC Consolidator Grant [310912]
  2. BBSRC [BB/K003569]
  3. Wellcome Trust
  4. European Research Council (ERC) [310912] Funding Source: European Research Council (ERC)

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Trypanosomatid parasites are causative agents of important human and animal diseases such as sleeping sickness and leishmaniasis. Most trypanosomatids are transmitted to their mammalian hosts by insects, often belonging to Diptera (or true flies). With resistance to both vector-targeted pesticides and trypanocidal drugs being reported, there is a need for novel transmission blocking strategies to be developed. Studies using the blood-feeding vectors themselves are not broadly accessible, as such, new model systems are being developed to unpick insect-trypanosmatids interactions. One such case is the interactions between the model dipteran osophila melanogaster and its natural trypanosomatid Herpetomonas muscarum. Our previous work has found that much of the transcriptomic changes triggered in H. muscarum after ingestion by Drosophila reflect what is known for disease-causing trypanosomatids. Here we describe a set of tools to genetically manipulate the parasite and therefore create a truly tractable insect-parasite interaction system from both sides of this association. These include transgenic fluorescently tagged parasites to follow infection dynamics in the fly gut as well as iterations of plasmids that can be used for generating knock-in and knock-out strains. The tools presented in this short report will facilitate further characterization of trypanosomatid establishment in a model dipteran.

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