Evidence map›Paper›PMID 26373806›Full record

ArticleScientific reports2015

High diversity and rapid diversification in the head louse, Pediculus humanus (Pediculidae: Phthiraptera).

Muhammad Ashfaq, Sean Prosser, Saima Nasir, Mariyam Masood, Sujeevan Ratnasingham, Paul D N Hebert

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
10.6field-weighted citation impact, top 2% 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

29 citing papers in PubMed, 1 synthesis or guideline pooled it, 59 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. High prevalence of knockdown resistance mutations, genetic clade diversity, and detection ofCurrent research in parasitology & vector-borne diseases · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Morphological and molecular evidence reveals a new species of chewing louseInternational journal for parasitology. Parasites and wildlife · 2023
    Article
  9. Article
  10. Human pediculosis, a global public health problem.Infectious diseases of poverty · 2022
    Review
  11. Article
  12. Article
  13. High Genetic Diversity andFrontiers in cellular and infection microbiology · 2022
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Where Are We With Human Lice? A Review of the Current State of Knowledge.Frontiers in cellular and infection microbiology · 2019
    Review
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

6 authors at 2 institutions in 2 countries.

Muhammad AshfaqBiodiversity Institute of Ontario, University of Guelph, Guelph, ON, Canada.
Sean ProsserBiodiversity Institute of Ontario, University of Guelph, Guelph, ON, Canada.
Saima NasirPakistan Council for Science and Technology, Islamabad, Pakistan.
Mariyam MasoodNational Institute for Biotechnology and Genetic Engineering, Jhang Road, Faisalabad, Pakistan.
Sujeevan RatnasinghamBiodiversity Institute of Ontario, University of Guelph, Guelph, ON, Canada.
Paul D N HebertBiodiversity Institute of Ontario, University of Guelph, Guelph, ON, Canada.
University of Guelph · CANational Institute for Biotechnology and Genetic Engineering · PK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The study analyzes sequence variation of two mitochondrial genes (COI, cytb) in Pediculus humanus from three countries (Egypt, Pakistan, South Africa) that have received little prior attention, and integrates these results with prior data. Analysis indicates a maximum K2P distance of 10.3% among 960 COI sequences and 13.8% among 479 cytb sequences. Three analytical methods (BIN, PTP, ABGD) reveal five concordant OTUs for COI and cytb. Neighbor-Joining analysis of the COI sequences confirm five clusters; three corresponding to previously recognized mitochondrial clades A, B, C and two new clades, "D" and "E", showing 2.3% and 2.8% divergence from their nearest neighbors (NN). Cytb data corroborate five clusters showing that clades "D" and "E" are both 4.6% divergent from their respective NN clades. Phylogenetic analysis supports the monophyly of all clusters recovered by NJ analysis. Divergence time estimates suggest that the earliest split of P. humanus clades occurred slightly more than one million years ago (MYa) and the latest about 0.3 MYa. Sequence divergences in COI and cytb among the five clades of P. humanus are 10X those in their human host, a difference that likely reflects both rate acceleration and the acquisition of lice clades from several archaic hominid lineages.

Indexed as

Genetic VariationAnimalsDNA Barcoding, TaxonomicGenes, InsectGenes, MitochondrialHaplotypesPediculusPhylogenySequence Analysis, DNA

Identifiers

PMID26373806
PMCPMC4570997
OpenAlexW2415928940

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.