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This study provides new DNA sequences for trypanosomatid parasites, aiding in their classification and supporting biodiversity research. These validated sequences from biological collections enhance taxonomic studies and parasite identification.

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Area of Science:

  • Parasitology
  • Molecular Biology
  • Biodiversity Studies

Background:

  • Reliable DNA sequences are crucial for biodiversity and phylogenetic research.
  • Institutional biological collections offer vouchered specimens for genetic analysis.
  • DNA sequencing of collection samples aids taxonomy, evolution, and biodiversity studies.

Purpose of the Study:

  • To generate phylogenetic trees for simplifying new trypanosomatid isolate screenings.
  • To classify and reclassify trypanosomatid specimens using DNA sequence data.
  • To identify potential new genera and species within Trypanosomatidae.

Main Methods:

  • Sequencing of glycosomal glyceraldehyde phosphate dehydrogenase (gGAPDH) and SSU rRNA (V7/V8) genes.
  • Analysis of 102 trypanosomatid cultures sourced from a biological collection.
  • Phylogenetic inference using generated DNA sequences and existing data.

Main Results:

  • First-time DNA sequence data provided for multiple isolates.
  • Phylogenetic analysis enabled classification and reclassification of specimens.
  • Identification of candidates for new genera and species, and taxonomic validation of deposits.

Conclusions:

  • Presents a validated list of species with associated DNA sequences.
  • Offers historical context for each isolate to support research.
  • Promotes the use of culture collections for taxonomic and biodiversity research.