Evidence map›Paper›PMID 34118950›Full record

ArticleMalaria journal2021

Low MSP-1 haplotype diversity in the West Palearctic population of the avian malaria parasite Plasmodium relictum.

Olof Hellgren, Victor Kelbskopf, Vincenzo A Ellis, Arif Ciloglu, Mélanie Duc, Xi Huang, Ricardo J Lopes, Vanessa A Mata, Sargis A Aghayan, Abdullah Inci and 1 more

Open access · goldAbstract read
In one paragraph

Article in Malaria journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
4.4field-weighted citation impact, top 5% of its field
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

5 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
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  3. HiddenCurrent 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

11 authors at 5 institutions in 7 countries.

Olof HellgrenDepartment of Biology, Lund University, Lund, Sweden. Olof.Hellgren@biol.lu.se.ORCID http://orcid.org/0000-0002-4062-7276
Victor KelbskopfDepartment of Biology, Lund University, Lund, Sweden.
Vincenzo A EllisDepartment of Biology, Lund University, Lund, Sweden.
Arif CilogluDepartment of Biology, Lund University, Lund, Sweden.
Mélanie DucDepartment of Biology, Lund University, Lund, Sweden.
Xi HuangDepartment of Biology, Lund University, Lund, Sweden.
Ricardo J LopesCIBIO, Centro de Investigação Em Biodiversidade E Recursos Genéticos, InBIO Laboratório Associado, Universidade Do Porto, Vairão, Portugal.
Vanessa A MataCIBIO, Centro de Investigação Em Biodiversidade E Recursos Genéticos, InBIO Laboratório Associado, Universidade Do Porto, Vairão, Portugal.
Sargis A AghayanYerevan State University, 1 Alex Manoogian, Yerevan, 0025, Republic of Armenia.
Abdullah InciDepartment of Parasitology, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Turkey.
Sergei V DrovetskiUS Geological Survey, Eastern Ecological Research Center at Patuxent Research Refuge, Beltsville, MD, 20705, USA.ORCID https://orcid.org/0000-0002-1832-5597
Lund University · SEUniversidade do Porto · PTErciyes University · TRUnited States Geological Survey · USYerevan State University · AM

Funding

COMPETE POPH/ QREN/FSEFundação para a Ciência e a Tecnologia FCOMP-01-0124- FEDER-008941; PTDC/BIA-BEC/103435/2008Fundação para a Ciência e Tecnologia DL57/2016/CP1440/CT0006Vetenskapsrådet 2016-03419
6 · The paper itself

Abstract

backgroundAlthough avian Plasmodium species are widespread and common across the globe, limited data exist on how genetically variable their populations are. Here, the hypothesis that the avian blood parasite Plasmodium relictum exhibits very low genetic diversity in its Western Palearctic transmission area (from Morocco to Sweden in the north and Transcaucasia in the east) was tested.

methodsThe genetic diversity of Plasmodium relictum was investigated by sequencing a portion (block 14) of the fast-evolving merozoite surface protein 1 (MSP1) gene in 75 different P. relictum infections from 36 host species. Furthermore, the full-length MSP1 sequences representing the common block 14 allele was sequenced in order to investigate if additional variation could be found outside block 14.

resultsThe majority (72 of 75) of the sequenced infections shared the same MSP1 allele. This common allele has previously been found to be the dominant allele transmitted in Europe.

conclusionThe results corroborate earlier findings derived from a limited dataset that the globally transmitted malaria parasite P. relictum exhibits very low genetic diversity in its Western Palearctic transmission area. This is likely the result of a recent introduction event or a selective sweep.

Indexed as

Genetic VariationHaplotypesAnimalsArmeniaMerozoite Surface Protein 1MoroccoPlasmodiumPortugalRussiaSongbirdsMerozoite Surface Protein 1Avian malariaHaemosporidaHost specificityMerozoite surface protein 1Parasite population structurePlasmodium relictum

Identifiers

PMID34118950
PMCPMC8199812
OpenAlexW3168078475

What OpenQuestion holds

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Registered trials

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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.