Evidence map›Paper›PMID 25487335›Full record

ArticlePhilosophical transactions of the Royal Society of London. Series B, Biological sciences2015

Mitochondrial DNA variation in the Viking age population of Norway.

Maja Krzewińska, Gro Bjørnstad, Pontus Skoglund, Pall Isolfur Olason, Jan Bill, Anders Götherström, Erika Hagelberg

Abstract readHistorical Article
In one paragraph

Article in Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

13 citing papers in PubMed.

  1. The Genomic Legacy of the Norman Conquest in Rural England.bioRxiv : the preprint server for biology · 2026
    Article
  2. Article
  3. Phylogeographic history of mitochondrial haplogroup J in Scandinavia.American journal of biological anthropology · 2023
    Article
  4. Article
  5. Article
  6. Mitochondrial function in development and disease.Disease models & mechanisms · 2021
    Review
  7. Article
  8. Article
  9. Article
  10. Paternal comeback in mitochondrial DNA inheritance.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  11. Article
  12. Article
  13. Introduction. Ancient DNA: the first three decades.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2015
    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

7 authors.

Maja KrzewińskaArchaeological Research Laboratory, Department of Archaeology and Classical Studies, Stockholm University, 106 91 Stockholm, Sweden Department of Biosciences, University of Oslo, 0316 Oslo, Norway Museum of Cultural History, University of Oslo, 0130 Oslo, Norway maja.krzewinska@arklab.su.se.
Gro BjørnstadDepartment of Forensic Biology, Norwegian Institute of Public Health, 0403 Oslo, Norway Department of Archaeology, Conservation and History, University of Oslo, 0315 Oslo, Norway.
Pontus SkoglundDepartment of Genetics, Harvard Medical School, Boston, MA 02115, USA Department of Evolutionary Biology, Uppsala University, 752 36 Uppsala, Sweden.
Pall Isolfur OlasonDepartment of Cell and Molecular Biology, Uppsala University, 751 24 Uppsala, Sweden Department of Evolutionary Biology, Uppsala University, 752 36 Uppsala, Sweden.
Jan BillMuseum of Cultural History, University of Oslo, 0130 Oslo, Norway.
Anders GötherströmArchaeological Research Laboratory, Department of Archaeology and Classical Studies, Stockholm University, 106 91 Stockholm, Sweden Department of Evolutionary Biology, Uppsala University, 752 36 Uppsala, Sweden.
Erika HagelbergDepartment of Biosciences, University of Oslo, 0316 Oslo, Norway erika.hagelberg@ibv.uio.no.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The medieval Norsemen or Vikings had an important biological and cultural impact on many parts of Europe through raids, colonization and trade, from about AD 793 to 1066. To help understand the genetic affinities of the ancient Norsemen, and their genetic contribution to the gene pool of other Europeans, we analysed DNA markers in Late Iron Age skeletal remains from Norway. DNA was extracted from 80 individuals, and mitochondrial DNA polymorphisms were detected by next-generation sequencing. The sequences of 45 ancient Norwegians were verified as genuine through the identification of damage patterns characteristic of ancient DNA. The ancient Norwegians were genetically similar to previously analysed ancient Icelanders, and to present-day Shetland and Orkney Islanders, Norwegians, Swedes, Scots, English, German and French. The Viking Age population had higher frequencies of K*, U*, V* and I* haplogroups than their modern counterparts, but a lower proportion of T* and H* haplogroups. Three individuals carried haplotypes that are rare in Norway today (U5b1b1, Hg A* and an uncommon variant of H*). Our combined analyses indicate that Norse women were important agents in the overseas expansion and settlement of the Vikings, and that women from the Orkneys and Western Isles contributed to the colonization of Iceland.

Indexed as

FossilsGenetic VariationBase SequenceBone and BonesDNA, MitochondrialFemaleGenetic MarkersHaplotypesHistory, MedievalHuman MigrationHumansMolecular Sequence DataNorwayNucleic Acid Amplification TechniquesSequence AlignmentSequence Analysis, DNADNA, MitochondrialGenetic Markersancient DNAhuman mitochondrial DNANorwayScandinaviaVikings

Identifiers

PMID25487335
PMCPMC4275891

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.