Genetic diversity of Leishmania tropica: Unexpectedly complex distribution pattern.

Acta Trop

Life Science Research Centre, Faculty of Science, University of Ostrava, 702 00 Ostrava, Czech Republic; Zoological Institute of the Russian Academy of Sciences, 199034 St. Petersburg, Russia. Electronic address:

Published: June 2021

AI Article Synopsis

  • This study examined clinical samples from patients in Syria and Turkey suffering from cutaneous leishmaniasis, focusing on the genetic makeup through ITS1 sequences.
  • All sequences identified were of the Leishmania tropica species, contributing to a larger genetic diversity analysis using data from GenBank.
  • The findings suggest a complex distribution of L. tropica haplotypes, with some being widespread while others are limited to specific areas, possibly linked to different vectors or animal reservoirs.

Article Abstract

In this study, we characterized a collection of clinical samples obtained from Syrian and Turkish patients with cutaneous leishmaniasis using internal transcribed spacer 1 (ITS1) sequences. All obtained sequences belonged to Leishmania tropica. Combining them with those available from GenBank allowed us performing a broad-scale analysis of genetic diversity for this species. We demonstrated that L. tropica has a complex phylogeographic pattern with some haplotypes being widespread across endemic countries and others restricted to particular regions. We hypothesize that at least some of them may be associated with alternative vectors or animal reservoirs.

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Source
http://dx.doi.org/10.1016/j.actatropica.2021.105888DOI Listing

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