Evidence map›Paper›PMID 25471224›Full record

ArticleNature communications2014

Khoisan hunter-gatherers have been the largest population throughout most of modern-human demographic history.

Hie Lim Kim, Aakrosh Ratan, George H Perry, Alvaro Montenegro, Webb Miller, Stephan C Schuster

Abstract read
In one paragraph

Article in Nature communications, 2014. 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
–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

29 citing papers in PubMed.

  1. Article
  2. Article
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  4. Review
  5. Article
  6. Still Standing Inside: A Local Idiom Related to Trauma among Namibian Speakers of Khoekhoegowab.International journal of environmental research and public health · 2022
    Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. The deep population history in Africa.Human molecular genetics · 2021
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Nicotinamide and Demographic and Disease transitions: Moderation is Best.International journal of tryptophan research : IJTR · 2019
    Review
  20. 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.

Hie Lim Kim1] Center for Comparative Genomics and Bioinformatics, Pennsylvania State University, 310 Wartik Lab, University Park, Pennsylvania 16802, USA [2] Singapore Centre on Environmental Life Sciences Engineering, Nanyang Technological University, 60 Nanyang Drive, SBS-01N-27, Singapore 637551, Singapore.
Aakrosh Ratan1] Center for Comparative Genomics and Bioinformatics, Pennsylvania State University, 310 Wartik Lab, University Park, Pennsylvania 16802, USA [2] Department of Public Health Sciences and Center for Public Health Genomics, University of Virginia, Charlottesville, Virginia 22908, USA.
George H PerryDepartments of Anthropology and Biology, Pennsylvania State University, 513 Carpenter Building, University Park, Pennsylvania 16802, USA.
Alvaro Montenegro1] Department of Geography, Ohio State University, 154 North Oval Mall, Columbus, Ohio 43210, USA [2] Campus do Litoral Paulista, Unesp-Univ Estadual Paulista, São Vicente 11330-900, Brazil.
Webb MillerCenter for Comparative Genomics and Bioinformatics, Pennsylvania State University, 310 Wartik Lab, University Park, Pennsylvania 16802, USA.
Stephan C Schuster1] Center for Comparative Genomics and Bioinformatics, Pennsylvania State University, 310 Wartik Lab, University Park, Pennsylvania 16802, USA [2] Singapore Centre on Environmental Life Sciences Engineering, Nanyang Technological University, 60 Nanyang Drive, SBS-01N-27, Singapore 637551, Singapore.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The Khoisan people from Southern Africa maintained ancient lifestyles as hunter-gatherers or pastoralists up to modern times, though little else is known about their early history. Here we infer early demographic histories of modern humans using whole-genome sequences of five Khoisan individuals and one Bantu speaker. Comparison with a 420 K SNP data set from worldwide individuals demonstrates that two of the Khoisan genomes from the Ju/'hoansi population contain exclusive Khoisan ancestry. Coalescent analysis shows that the Khoisan and their ancestors have been the largest populations since their split with the non-Khoisan population ~100-150 kyr ago. In contrast, the ancestors of the non-Khoisan groups, including Bantu-speakers and non-Africans, experienced population declines after the split and lost more than half of their genetic diversity. Paleoclimate records indicate that the precipitation in southern Africa increased ~80-100 kyr ago while west-central Africa became drier. We hypothesize that these climate differences might be related to the divergent-ancient histories among human populations.

Indexed as

Genetics, PopulationGenetic VariationSequence Analysis, DNAAfrica, SouthernBlack PeopleDemographyFemaleHumansMale

Identifiers

PMID25471224
PMCPMC4268704

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.