Evidence map›Paper›PMID 25190631›Full record

ArticleParasites & vectors2014

The mitochondrial genome of Parascaris univalens--implications for a "forgotten" parasite.

Abdul Jabbar, D Timothy J Littlewood, Namitha Mohandas, Andrew G Briscoe, Peter G Foster, Fritz Müller, Georg von Samson-Himmelstjerna, Aaron R Jex, Robin B Gasser

Open access · goldAbstract read
In one paragraph

Article in Parasites & vectors, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
4.4field-weighted citation impact, top 6% 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

17 citing papers in PubMed, 49 citations in OpenAlex.

  1. First report of the complete mitochondrial genome of anInternational journal for parasitology. Parasites and wildlife · 2026
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  2. Article
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  6. The Complete Mitogenome ofAnimals : an open access journal from MDPI · 2022
    Article
  7. Article
  8. An inactivated bacterium (paraprobiotic) expressingOne health (Amsterdam, Netherlands) · 2021
    Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Molecular characterization of β-tubulin gene associated with benzimidazole resistance in larvae of field isolates ofJournal of parasitic diseases : official organ of the Indian Society for Parasitology · 2019
    Article
  14. Molecular identification and characterization of partial COX1 gene from caecal worm (International journal for parasitology. Parasites and wildlife · 2017
    Article
  15. Article
  16. Article
  17. Article
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

9 authors at 3 institutions in 3 countries.

Abdul JabbarFaculty of Veterinary and Agricultural Sciences, The University of Melbourne, Melbourne, Victoria, Australia. jabbara@unimelb.edu.au.
D Timothy J Littlewood
Namitha Mohandas
Andrew G Briscoe
Peter G Foster
Fritz Müller
Georg von Samson-Himmelstjerna
Aaron R Jex
Robin B Gasser
University of Melbourne · AUNatural History Museum · GBInstitute of Zoology · KZ

Funding

Biotechnology and Biological Sciences Research Council BB/H023534/1
6 · The paper itself

Abstract

backgroundParascaris univalens is an ascaridoid nematode of equids. Little is known about its epidemiology and population genetics in domestic and wild horse populations. PCR-based methods are suited to support studies in these areas, provided that reliable genetic markers are used. Recent studies have shown that mitochondrial (mt) genomic markers are applicable in such methods, but no such markers have been defined for P. univalens.

methodsMt genome regions were amplified from total genomic DNA isolated from P. univalens eggs by long-PCR and sequenced using Illumina technology. The mt genome was assembled and annotated using an established bioinformatic pipeline. Amino acid sequences inferred from all protein-encoding genes of the mt genomes were compared with those from other ascaridoid nematodes, and concatenated sequences were subjected to phylogenetic analysis by Bayesian inference.

resultsThe circular mt genome was 13,920 bp in length and contained two ribosomal RNA, 12 protein-coding and 22 transfer RNA genes, consistent with those of other ascaridoids. Phylogenetic analysis of the concatenated amino acid sequence data for the 12 mt proteins showed that P. univalens was most closely related to Ascaris lumbricoides and A. suum, to the exclusion of other ascaridoids.

conclusionsThis mt genome representing P. univalens now provides a rich source of genetic markers for future studies of the genetics and epidemiology of this parasite and its congener, P. equorum. This focus is significant, given that there is no published information on the specific prevalence and distribution of P. univalens infection in domestic and wild horse populations.

Indexed as

Amino Acid SequenceAnimalsAscaridoideaDNA, HelminthGenome, MitochondrialPhylogenyDNA, Helminth

Identifiers

PMID25190631
PMCPMC4262126
OpenAlexW1996882775

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.