Cited by 398Genomic variations and chromosomal abnormalitiesChromosomal and Genetic VariationsGenome Rearrangement Algorithms

A genome-wide comparison of recent chimpanzee and human segmental duplications

Cheng, Ze, Ventura, Mario, She, Xinwei, Khaitovich, Philipp, Graves, Tina, Osoegawa, Kazutoyo, Church, Deanna, DeJong, Pieter +4 more·2005·Nature

Abstract

We present a global comparison of differences in content of segmental duplication between human and chimpanzee, and determine that 33% of human duplications (> 94% sequence identity) are not duplicated in chimpanzee, including some human disease-causing duplications. Combining experimental and computational approaches, we estimate a genomic duplication rate of 4-5 megabases per million years since divergence. These changes have resulted in gene expression differences between the species. In terms of numbers of base pairs affected, we determine that de novo duplication has contributed most significantly to differences between the species, followed by deletion of ancestral duplications. Post-speciation gene conversion accounts for less than 10% of recent segmental duplication. Chimpanzee-specific hyperexpansion (> 100 copies) of particular segments of DNA have resulted in marked quantitative differences and alterations in the genome landscape between chimpanzee and human. Almost all of the most extreme differences relate to changes in chromosome structure, including the emergence of African great ape subterminal heterochromatin. Nevertheless, base per base, large segmental duplication events have had a greater impact (2.7%) in altering the genomic landscape of these two species than single-base-pair substitution (1.2%).

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Crossref · 10.1038/nature04000

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  • Chimpanzee chromosomes 2A and 2B are capped with hyper-expanded segmental duplications and tandem repeats (StSats) not existing in the human genome.

    “since the chimpanzee chromosomes 2A and 2B are capped with hyper-expanded segmental duplications and tandem repeats (StSats) not existing in the human genome [8, 40], we cannot measure the magnitude of the accumulation of BCS in those fragments comparing to the human reference.”

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Authors
Cheng, Z., Ventura, M., She, X., Khaitovich, P., Graves, T., Osoegawa, K., Church, D., DeJong, P., Wilson, R. K., Pääbo, S., Rocchi, M., & Eichler, E. E.
Affiliations
  • Howard Hughes Medical Institute (US)
  • University of Bari Aldo Moro (IT)
  • Max Planck Institute for Evolutionary Anthropology (DE)
  • Washington University in St. Louis (US)
  • National Institutes of Health (US)
Corresponding author
Eichler, Evan E.
Venue
Nature
Published
2005-09
Volume
437
Issue
7055
Pages
88-93
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W1971369643
Cited by
398
References
31
Citations by year
2026: 3 · 2025: 4 · 2024: 17 · 2023: 4 · 2022: 4 · 2021: 5 · 2020: 17 · 2019: 10 · 2018: 11 · 2017: 13 · 2016: 6 · 2015: 10 · 2014: 15 · 2013: 22 · 2012: 18
FWCI
27.23
Type
journal article
Language
en
Open access
closed
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • Max Planck Institute for Plasma Physics (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
  • CINECA IRIS Institutional Research Information System (University of Bari Aldo Moro) (submittedVersion)
Funders
  • European Commission
  • Bundesministerium für Bildung und Forschung
  • National Institute of General Medical Sciences
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomic variations and chromosomal abnormalities
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Chromosomal and Genetic Variations
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genome Rearrangement Algorithms
Keywords
segmental duplication, human-chimpanzee comparison, de novo duplication, gene conversion, subtelomeric heterochromatin, gene expression differences, primate genome evolution, human evolution, chimpanzee genome, Y-linked genes, chromosome structure, comparative genomics
MeSH terms
Animals, Pan troglodytes, Gene Conversion, Humans, Species Specificity, Time Factors, Genome, Human, Evolution, Molecular, Computational Biology, Gene Duplication, Genomics, Chromosomes, Mammalian

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