Evidence map›Paper›PMID 26712024›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2016

Neolithic and Bronze Age migration to Ireland and establishment of the insular Atlantic genome.

Lara M Cassidy, Rui Martiniano, Eileen M Murphy, Matthew D Teasdale, James Mallory, Barrie Hartwell, Daniel G Bradley

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 111 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
111citing papers in PubMed, 2 pooled it
–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

111 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Estimating human mobility in Holocene Western Eurasia with large-scale ancient genomic data.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Pooled it
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  5. Genes · 2026
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  12. Global patterns of natural selection inferred using ancient DNA.bioRxiv : the preprint server for biology · 2026
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51 more citing papers are in PubMed but not listed here.

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.

Lara M CassidySmurfit Institute of Genetics, Trinity College, Dublin 2, Ireland;
Rui MartinianoSmurfit Institute of Genetics, Trinity College, Dublin 2, Ireland;
Eileen M MurphySchool of Geography, Archaeology and Palaeoecology, Queen's University Belfast, Belfast BT7 1NN, Northern Ireland.
Matthew D TeasdaleSmurfit Institute of Genetics, Trinity College, Dublin 2, Ireland;
James MallorySchool of Geography, Archaeology and Palaeoecology, Queen's University Belfast, Belfast BT7 1NN, Northern Ireland.
Barrie HartwellSchool of Geography, Archaeology and Palaeoecology, Queen's University Belfast, Belfast BT7 1NN, Northern Ireland.
Daniel G BradleySmurfit Institute of Genetics, Trinity College, Dublin 2, Ireland; dbradley@tcd.ie.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The Neolithic and Bronze Age transitions were profound cultural shifts catalyzed in parts of Europe by migrations, first of early farmers from the Near East and then Bronze Age herders from the Pontic Steppe. However, a decades-long, unresolved controversy is whether population change or cultural adoption occurred at the Atlantic edge, within the British Isles. We address this issue by using the first whole genome data from prehistoric Irish individuals. A Neolithic woman (3343-3020 cal BC) from a megalithic burial (10.3× coverage) possessed a genome of predominantly Near Eastern origin. She had some hunter-gatherer ancestry but belonged to a population of large effective size, suggesting a substantial influx of early farmers to the island. Three Bronze Age individuals from Rathlin Island (2026-1534 cal BC), including one high coverage (10.5×) genome, showed substantial Steppe genetic heritage indicating that the European population upheavals of the third millennium manifested all of the way from southern Siberia to the western ocean. This turnover invites the possibility of accompanying introduction of Indo-European, perhaps early Celtic, language. Irish Bronze Age haplotypic similarity is strongest within modern Irish, Scottish, and Welsh populations, and several important genetic variants that today show maximal or very high frequencies in Ireland appear at this horizon. These include those coding for lactase persistence, blue eye color, Y chromosome R1b haplotypes, and the hemochromatosis C282Y allele; to our knowledge, the first detection of a known Mendelian disease variant in prehistory. These findings together suggest the establishment of central attributes of the Irish genome 4,000 y ago.

Indexed as

Genome, HumanHuman MigrationAtlantic OceanDNAGene PoolHaplotypesHomozygoteHumansIrelandPhenotypePrincipal Component AnalysisSequence Analysis, DNATime FactorsDNAancient DNAgenomicspopulation genetics

Identifiers

PMID26712024
PMCPMC4720318

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.