Evidence map›Paper›PMID 12019240›Full record

ArticleGenetics2002

Larger genetic differences within africans than between Africans and Eurasians.

Ning Yu, Feng-Chi Chen, Satoshi Ota, Lynn B Jorde, Pekka Pamilo, Laszlo Patthy, Michele Ramsay, Trefor Jenkins, Song-Kun Shyue, Wen-Hsiung Li

Abstract read
In one paragraph

Article in Genetics, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
74citing 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

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

  1. Pooled it
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  8. Article
  9. Review
  10. Monoclonal Gammopathies in Africa.Clinical lymphoma, myeloma & leukemia · 2025
    Review
  11. Article
  12. Review
  13. Review
  14. Article
  15. Article
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14 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

10 authors.

Ning YuDepartment of Ecology and Evolution, University of Chicago, Chicago, Illinois 60637, USA.
Feng-Chi Chen
Satoshi Ota
Lynn B Jorde
Pekka Pamilo
Laszlo Patthy
Michele Ramsay
Trefor Jenkins
Song-Kun Shyue
Wen-Hsiung Li

Funding

POPULATION GENETICS OF MOBILE ELEMENTSR01GM059290 · NIGMS · UNIVERSITY OF UTAH · PI BATZER, MARK A, FESCHOTTE, CEDRIC · 1999 to 2018
$8.5M
STATISTICAL STUDIES OF DNA EVOLUTIONR37GM030998 · NIGMS · UNIVERSITY OF CHICAGO · PI LI, WEN-HSIUNG · 2000 to 2009
$1.9M
HUMAN DNA POLYMORPHISM AND EVOLUTIONR01GM055759 · NIGMS · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI LI, WEN-HSIUNG · 1998 to 2001
$574k
MOLECULAR COEVOLUTION OF GROWTH HORMONE AND ITS RECEPTORR01HD038287 · NICHD · UNIVERSITY OF CHICAGO · PI LI, WEN-HSIUNG · 1999 to 2002
$522k
STATISTICAL STUDIES OF DNA EVOLUTIONR01GM030998 · NIGMS · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI LI, WEN-HSIUNG · 1985 to 1999
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NICHD NIH HHS HD38287NIGMS NIH HHS GM30998NIGMS NIH HHS GM55759NIGMS NIH HHS GM59290
6 · The paper itself

Abstract

The worldwide pattern of single nucleotide polymorphism (SNP) variation is of great interest to human geneticists, population geneticists, and evolutionists, but remains incompletely understood. We studied the pattern in noncoding regions, because they are less affected by natural selection than are coding regions. Thus, it can reflect better the history of human evolution and can serve as a baseline for understanding the maintenance of SNPs in human populations. We sequenced 50 noncoding DNA segments each approximately 500 bp long in 10 Africans, 10 Europeans, and 10 Asians. An analysis of the data suggests that the sampling scheme is adequate for our purpose. The average nucleotide diversity (pi) for the 50 segments is only 0.061% +/- 0.010% among Asians and 0.064% +/- 0.011% among Europeans but almost twice as high (0.115% +/- 0.016%) among Africans. The African diversity estimate is even higher than that between Africans and Eurasians (0.096% +/- 0.012%). From available data for noncoding autosomal regions (total length = 47,038 bp) and X-linked regions (47,421 bp), we estimated the pi-values for autosomal regions to be 0.105, 0.070, 0.069, and 0.097% for Africans, Asians, Europeans, and between Africans and Eurasians, and the corresponding values for X-linked regions to be 0.088, 0.042, 0.053, and 0.082%. Thus, Africans differ from one another slightly more than from Eurasians, and the genetic diversity in Eurasians is largely a subset of that in Africans, supporting the out of Africa model of human evolution. Clearly, one must specify the geographic origins of the individuals sampled when studying pi or SNP density.

Indexed as

Polymorphism, Single NucleotideAfricaAsiaAsian PeopleBiological EvolutionBlack PeopleEuropeEvolution, MolecularGenetic VariationHumansWhite People

Identifiers

PMID12019240
PMCPMC1462113

What OpenQuestion holds

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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.