Evidence map›Paper›PMID 33668210›Full record

ArticleGenes2021

Complete Mitochondrial DNA Genome of Nine Species of Sharks and Rays and Their Phylogenetic Placement among Modern Elasmobranchs.

Vasiliki Kousteni, Sofia Mazzoleni, Katerina Vasileiadou, Michail Rovatsos

Open access · goldAbstract read
In one paragraph

Article in Genes, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
13.6field-weighted citation impact, top 1% 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, 63 citations in OpenAlex.

  1. Article
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  8. Article
  9. Analysis of the Entire Mitogenome of the Threatened Freshwater StingrayInternational journal of molecular sciences · 2025
    Article
  10. The Complete Mitochondrial Genome ofEcology and evolution · 2025
    Article
  11. Article
  12. Article
  13. Article
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  15. The complete mitogenome of the Atlantic longnose chimaeraMitochondrial DNA. Part B, Resources · 2024
    Article
  16. Article
  17. Article
  18. Article
  19. Article
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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

4 authors at 1 institution in 2 countries.

Vasiliki KousteniDepartment of Ecology, Faculty of Science, Charles University, Viničná 7, 12800 Prague, Czech Republic.ORCID 0000-0003-3455-5357
Sofia MazzoleniDepartment of Ecology, Faculty of Science, Charles University, Viničná 7, 12800 Prague, Czech Republic.
Katerina VasileiadouDepartment of Ecology, Faculty of Science, Charles University, Viničná 7, 12800 Prague, Czech Republic.ORCID 0000-0002-5057-6417
Michail RovatsosDepartment of Ecology, Faculty of Science, Charles University, Viničná 7, 12800 Prague, Czech Republic.
Charles University · CZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chondrichthyes occupy a key position in the phylogeny of vertebrates. The complete sequence of the mitochondrial genome (mitogenome) of four species of sharks and five species of rays was obtained by whole genome sequencing (DNA-seq) in the Illumina HiSeq2500 platform. The arrangement and features of the genes in the assembled mitogenomes were identical to those found in vertebrates. Both Maximum Likelihood (ML) and Bayesian Inference (BI) analyses were used to reconstruct the phylogenetic relationships among 172 species (including 163 mitogenomes retrieved from GenBank) based on the concatenated dataset of 13 individual protein coding genes. Both ML and BI analyses did not support the "Hypnosqualea" hypothesis and confirmed the monophyly of sharks and rays. The broad notion in shark phylogeny, namely the division of sharks into Galeomorphii and Squalomorphii and the monophyly of the eight shark orders, was also supported. The phylogenetic placement of all nine species sequenced in this study produced high statistical support values. The present study expands our knowledge on the systematics, genetic differentiation, and conservation genetics of the species studied, and contributes to our understanding of the evolutionary history of Chondrichthyes.

Indexed as

Genome, MitochondrialPhylogenyAnimalsSharksSkates, FishChondrichthyescomplete mitogenomephylogenyrayssharkssystematics

Identifiers

PMID33668210
PMCPMC7995966
OpenAlexW3130053984

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.