Evidence map›Paper›PMID 30071897›Full record

ArticleParasites & vectors2018

Diversity and evolution of anuran trypanosomes: insights from the study of European species.

Viktoria V Spodareva, Anastasiia Grybchuk-Ieremenko, Alexander Losev, Jan Votýpka, Julius Lukeš, Vyacheslav Yurchenko, Alexei Yu Kostygov

Abstract read
In one paragraph

Article in Parasites & vectors, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

28 citing papers in PubMed.

  1. Article
  2. Cell cycle ofCurrent zoology · 2026
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  4. Review
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  9. Article
  10. Species distribution and screening ofCurrent research in parasitology & vector-borne diseases · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Viktoria V SpodarevaLife Science Research Centre, Faculty of Science, University of Ostrava, Ostrava, Czechia.
Anastasiia Grybchuk-IeremenkoLife Science Research Centre, Faculty of Science, University of Ostrava, Ostrava, Czechia.
Alexander LosevSchmalhausen Institute of Zoology of National Academy of Sciences of Ukraine, Kyiv, Ukraine.
Jan VotýpkaDepartment of Parasitology, Faculty of Sciences, Charles University, Prague, Czechia.
Julius LukešBiology Centre, Institute of Parasitology, Czech Academy of Sciences, České Budějovice, Czechia.
Vyacheslav YurchenkoLife Science Research Centre, Faculty of Science, University of Ostrava, Ostrava, Czechia. vyacheslav.yurchenko@osu.cz.
Alexei Yu KostygovLife Science Research Centre, Faculty of Science, University of Ostrava, Ostrava, Czechia. aleksei.kostygov@osu.cz.

Funding

Ministerstvo Školství, Mládeže a Tělovýchovy LM2015070Ministerstvo Školství, Mládeže a Tělovýchovy OP VVV 16_019/0000759
6 · The paper itself

Abstract

backgroundAmphibian trypanosomes were the first ever described trypanosomatids. Nevertheless, their taxonomy remains entangled because of pleomorphism and high prevalence of mixed infections. Despite the fact that the first species in this group were described in Europe, virtually none of the trypanosomes from European anurans was analyzed using modern molecular methods.

methodsIn this study, we explored the diversity and phylogeny of trypanosomes in true frogs from Europe using light microscopy and molecular methods.

resultsA comparison of observed morphotypes with previous descriptions allowed us to reliably identify three Trypanosoma spp., whereas the remaining two strains were considered to represent novel taxa. In all cases, more than one morphotype per blood sample was observed, indicating mixed infections. One hundred and thirty obtained 18S rRNA gene sequences were unambiguously subdivided into five groups, correspondent to the previously recognized or novel taxa of anuran trypanosomes.

conclusionsIn this work we studied European frog trypanosomes. Even with a relatively moderate number of isolates, we were able to find not only three well-known species, but also two apparently new ones. We revealed that previous assignments of multiple isolates from distant geographical localities to one species based on superficial resemblance were unjustified. Our work also demonstrated a high prevalence of mixed trypanosome infections in frogs and proposed a plausible scenario of evolution of the genus Trypanosoma.

Indexed as

PhylogenyAnimalsAnuraCloning, MolecularCzechoslovakiaGenetic VariationPolymerase Chain ReactionRNA, ProtozoanRNA, Ribosomal, 18SSpecies SpecificityTrypanosomaUkraineRNA, ProtozoanRNA, Ribosomal, 18SEvolutionFrog trypanosomesMixed infectionsTrypanosomatidae

Identifiers

PMID30071897
PMCPMC6090815

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.