Cited by 13Pleistocene-Era Hominins and ArchaeologyGenomic variations and chromosomal abnormalitiesForensic and Genetic Research

Using the Neandertal genome to study the evolution of small insertions and deletions in modern humans

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Chintalapati, Manjusha, Dannemann, Michael, Prüfer, Kay·2017·BMC Evolutionary Biology

Abstract

BACKGROUND: Small insertions and deletions occur in humans at a lower rate compared to nucleotide changes, but evolve under more constraint than nucleotide changes. While the evolution of insertions and deletions have been investigated using ape outgroups, the now available genome of a Neandertal can shed light on the evolution of indels in more recent times. RESULTS: We used the Neandertal genome together with several primate outgroup genomes to differentiate between human insertion/deletion changes that likely occurred before the split from Neandertals and those that likely arose later. Changes that pre-date the split from Neandertals show a smaller proportion of deletions than those that occurred later. The presence of a Neandertal-shared allele in Europeans or Asians but the absence in Africans was used to detect putatively introgressed indels in Europeans and Asians. A larger proportion of these variants reside in intergenic regions compared to other modern human variants, and some variants are linked to SNPs that have been associated with traits in modern humans. CONCLUSIONS: Our results are in agreement with earlier results that suggested that deletions evolve under more constraint than insertions. When considering Neandertal introgressed variants, we find some evidence that negative selection affected these variants more than other variants segregating in modern humans. Among introgressed variants we also identify indels that may influence the phenotype of their carriers. In particular an introgressed deletion associated with a decrease in the time to menarche may constitute an example of a former Neandertal-specific trait contributing to modern human phenotypic diversity.

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  • An introgressed indel from Neanderthals causes an earlier onset of menarche in present-day humans, supporting at least the existence of alleles for earlier maturation in the Neanderthal population.

    “an introgressed indel from Neanderthals causes an earlier onset of menarche in present-day humans30, supporting at least the existence of alleles for earlier maturation in the Neanderthal population.”

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  1. [54]The 1000 Genomes Project Consortium. A global reference for human genetic variation. Nature. 2015;526(7571):68–74. PMC4750478 26432245

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Authors
Chintalapati, M., Dannemann, M., & Prüfer, K.
Affiliations
Max Planck Institute for Evolutionary Anthropology (DE)
Corresponding author
Prüfer, Kay
Venue
BMC Evolutionary Biology
Published
2017-08-04
Volume
17
Issue
1
Pages
179-179
ISSN
1471-2148 (ISSN-L)
OpenAlex
W2743528751
Cited by
13
References
64
Citations by year
2025: 1 · 2023: 2 · 2022: 2 · 2021: 1 · 2019: 3 · 2018: 4
FWCI
7.73
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • BMC Evolutionary Biology (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • Max Planck Digital Library (submittedVersion, other-oa)
Funders
Max-Planck-Gesellschaft
Topics
  • Social Sciences › Anthropology › Pleistocene-Era Hominins and Archaeology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomic variations and chromosomal abnormalities
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Forensic and Genetic Research
Keywords
small insertions and deletions, indels, human evolution, intergenic variants, phenotypic diversity
MeSH terms
Animals, Gene Frequency, Humans, Phenotype, Phylogeny, Primates, Genome, Evolution, Molecular, Polymorphism, Single Nucleotide, INDEL Mutation, Genome-Wide Association Study, Neanderthals, Gene Ontology

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