Evidence map›Paper›PMID 18818765›Full record

ArticlePLoS genetics2008

Sex-biased evolutionary forces shape genomic patterns of human diversity.

Michael F Hammer, Fernando L Mendez, Murray P Cox, August E Woerner, Jeffrey D Wall

Open access · goldAbstract read
In one paragraph

Article in PLoS genetics, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 75 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
75citing papers in PubMed, 1 pooled it
10.1field-weighted citation impact, top 2% 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

75 citing papers in PubMed, 1 synthesis or guideline pooled it, 168 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Methods for Assessing Population Relationships and History Using Genomic Data.Annual review of genomics and human genetics · 2023
    Review
  9. Article
  10. Article
  11. A neutral model for the loss of recombination on sex chromosomes.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021
    Article
  12. Article
  13. Article
  14. Genomic Structure ofGenetics · 2019
    Article
  15. Article
  16. Complex patterns of sex-biased demography in canines.Proceedings. Biological sciences · 2019
    Article
  17. Article
  18. Article
  19. Review
  20. Genetic Diversity on the Sex Chromosomes.Genome biology and evolution · 2018
    Review

15 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

5 authors at 2 institutions in 1 country.

Michael F HammerARL Division of Biotechnology, University of Arizona, Tucson, Arizona, USA. mfh@u.arizona.edu
Fernando L Mendez
Murray P Cox
August E Woerner
Jeffrey D Wall
University of Arizona · USUniversity of California, San Francisco · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Comparisons of levels of variability on the autosomes and X chromosome can be used to test hypotheses about factors influencing patterns of genomic variation. While a tremendous amount of nucleotide sequence data from across the genome is now available for multiple human populations, there has been no systematic effort to examine relative levels of neutral polymorphism on the X chromosome versus autosomes. We analyzed approximately 210 kb of DNA sequencing data representing 40 independent noncoding regions on the autosomes and X chromosome from each of 90 humans from six geographically diverse populations. We correct for differences in mutation rates between males and females by considering the ratio of within-human diversity to human-orangutan divergence. We find that relative levels of genetic variation are higher than expected on the X chromosome in all six human populations. We test a number of alternative hypotheses to explain the excess polymorphism on the X chromosome, including models of background selection, changes in population size, and sex-specific migration in a structured population. While each of these processes may have a small effect on the relative ratio of X-linked to autosomal diversity, our results point to a systematic difference between the sexes in the variance in reproductive success; namely, the widespread effects of polygyny in human populations. We conclude that factors leading to a lower male versus female effective population size must be considered as important demographic variables in efforts to construct models of human demographic history and for understanding the forces shaping patterns of human genomic variability.

Indexed as

Evolution, MolecularGenetic VariationChromosomes, HumanChromosomes, Human, XFemaleGenetics, PopulationHumansMaleModels, GeneticMutationPopulation DensitySelection, GeneticSequence Analysis, DNASex Characteristics

Identifiers

PMID18818765
PMCPMC2538571
OpenAlexW2172226817

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.