Cited by 136Pleistocene-Era Hominins and ArchaeologyForensic and Genetic ResearchGenetic diversity and population structure

Using hominin introgression to trace modern human dispersals

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Teixeira, João C., Cooper, Alan·2019·Proceedings of the National Academy of Sciences

Abstract

The dispersal of anatomically modern human populations out of Africa and across much of the rest of the world around 55 to 50 thousand years before present (ka) is recorded genetically by the multiple hominin groups they met and interbred with along the way, including the Neandertals and Denisovans. The signatures of these introgression events remain preserved in the genomes of modern-day populations, and provide a powerful record of the sequence and timing of these early migrations, with Asia proving a particularly complex area. At least 3 different hominin groups appear to have been involved in Asia, of which only the Denisovans are currently known. Several interbreeding events are inferred to have taken place east of Wallace’s Line, consistent with archaeological evidence of widespread and early hominin presence in the area. However, archaeological and fossil evidence indicates archaic hominins had not spread as far as the Sahul continent (New Guinea, Australia, and Tasmania), where recent genetic evidence remains enigmatic.

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  • The patterning of Denisovan ancestry across Island Southeast Asia is consistent with separate Denisovan introgression events in the Philippines and, potentially, in Flores.

    “Indeed, the patterning of Denisovan ancestry across ISEA is consistent with separate Denisovan introgression events in the Philippines 19 and, potentially, in Flores 23,43 , the island homes of H. luzonensis and H. floresiensis , respectively.”

    From Widespread Denisovan ancestry in Island Southeast Asia but no evidence of substantial super-archaic hominin admixture (2021) · cites this paper as [23]

    In “Denisovan DNA across Wallace’s Line” (page unavailable), the paper describes a further independent Denisovan interbreeding event in the Philippines. It also discusses a possible separate introgression event on Flores, but attributes that signal to an unknown hominin (EH2), not to Denisovans. (LLM, conf=0.90)

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Authors
Teixeira, J. C., & Cooper, A.
Affiliations
University of Utah (US)
Venue
Proceedings of the National Academy of Sciences
Published
2019-07-12
Volume
116
Issue
31
Pages
15327-15332
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2956544692
Cited by
136
References
48
Citations by year
2026: 1 · 2025: 46 · 2024: 62 · 2023: 8 · 2022: 3 · 2021: 11 · 2020: 5
FWCI
21.76
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Adelaide Research & Scholarship (AR&S) (University of Adelaide) (submittedVersion)
Funders
Australian Research Council (IN180100017, FL140100260)
Topics
  • Social Sciences › Anthropology › Pleistocene-Era Hominins and Archaeology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Forensic and Genetic Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic diversity and population structure
Keywords
modern human dispersal, Neanderthals, Denisovans, out-of-Africa migration, interbreeding, Wallace's Line, archaic humans, human evolution
MeSH terms
Africa, Animals, Asia, Southeastern, DNA, Geography, Humans, Population Dynamics, Hominidae, Human Migration

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