Diversity of trypanosomatids (Kinetoplastea: Trypanosomatidae) parasitizing fleas (Insecta: Siphonaptera) and description of a new genus Blechomonas gen. n
Jazyk angličtina Země Německo Médium print-electronic
Typ dokumentu časopisecké články, práce podpořená grantem
PubMed
24113136
DOI
10.1016/j.protis.2013.08.002
PII: S1434-4610(13)00078-3
Knihovny.cz E-zdroje
- Klíčová slova
- Blechomonas, SL, SSU, Siphonaptera, TU, Trypanosomatidae, co-evolution., gGAPDH, glycosomal glyceraldehyde-3-phosphate dehydrogenase, host specificity, kDNA, kinetoplast DNA, phylogeny, small subunit ribosomal RNA, spliced leader RNA gene repeats, typing unit,
- MeSH
- biodiverzita * MeSH
- fylogeneze MeSH
- hlodavci MeSH
- molekulární sekvence - údaje MeSH
- Siphonaptera klasifikace genetika parazitologie MeSH
- Trypanosomatina klasifikace genetika izolace a purifikace fyziologie MeSH
- zvířata MeSH
- Check Tag
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Geografické názvy
- Česká republika MeSH
To further investigate the diversity of Trypanosomatidae we have examined the species present within the flea (Siphonaptera) population in the Czech Republic. Out of 1549 fleas, 239 were found to be infected by trypanosomatids. Axenic cultures were established from 90 infected specimens and 29 of them were further characterized. Molecular phylogenetic analysis of the SL RNA, gGAPDH, and SSU rRNA genes revealed a striking diversity within this group and analyzed isolates were classified into 16 Typing units (TUs) of which 15 typified new species. In addition to one Trypanosoma species, two TUs grouped within the sub-family Leishmaniinae, two clustered together with Herpetomonas, wheras 11 TUs formed a novel clade branching off between Trypanosoma spp. and remaining trypanosomatids. We propose to recognize this clade as a new genus Blechomonas and a new subfamily Blechomonadinae, and provide molecular and morphological description of 11 TUs representing this genus. Our finding of such an ancient host-specific group sheds new light at the origin of Trypanosomatidae and the roots of dixenous parasitism. The strict host restriction of Blechomonas to Siphonaptera with adult fleas' dependence on blood meal may reflect passing of parasites from larvae through pupae to adults and implies potential transmission to the warm-blooded vertebrates.
Department of Parasitology Faculty of Science Charles University 128 44 Prague Czech Republic
Life Science Research Centre Faculty of Sciences University of Ostrava 710 00 Ostrava Czech Republic
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