Genome-wide Ancestry Patterns in Rapanui Suggest Pre-European Admixture with Native Americans

@article{MorenoMayar2014GenomewideAP,
  title={Genome-wide Ancestry Patterns in Rapanui Suggest Pre-European Admixture with Native Americans},
  author={Jos{\'e} V{\'i}ctor Moreno-Mayar and Simon Rasmussen and Andaine Seguin-Orlando and Morten Rasmussen and Mason Liang and Siri T Fl{\aa}m and Benedicte A. Lie and Gregor D. Gilfillan and Rasmus Nielsen and Erik Thorsby and Eske Willerslev and Anna-Sapfo Malaspinas},
  journal={Current Biology},
  year={2014},
  volume={24},
  pages={2518-2525}
}

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References

SHOWING 1-10 OF 68 REFERENCES

Genetic Change in the Polynesian Population of Easter Island: Evidence from Alu Insertion Polymorphisms

TLDR
Comparative analysis of a set of 18 Alu insertion polymorphisms from native Easter Island inhabitants supports the “Voyaging Corridor” model of Polynesian human settlement, which indicates that pre‐Polynesians are mainly derived from Southeast Asian and Wallacean populations rather than from Taiwan or the Philippines.

Genome-wide analysis indicates more Asian than Melanesian ancestry of Polynesians.

Reconstructing Native American Population History

TLDR
It is shown that the initial peopling followed a southward expansion facilitated by the coast, with sequential population splits and little gene flow after divergence, especially in South America.

Reconstructing the Population Genetic History of the Caribbean

TLDR
It is demonstrated that the ancestral components in admixed genomes can be traced back to distinct sub-continental source populations with far greater resolution than previously thought, even when limited pre-Columbian Caribbean haplotypes have survived.

Molecular genetic studies of natives on Easter Island: evidence of an early European and Amerindian contribution to the Polynesian gene pool.

TLDR
There may have been an early European and Amerindian contribution to the Polynesian gene pool of Easter Island through an introduction into Easter Island in the early 1800s, or earlier.

An Aboriginal Australian Genome Reveals Separate Human Dispersals into Asia

TLDR
It is shown that Aboriginal Australians are descendants of an early human dispersal into eastern Asia, possibly 62,000 to 75,000 years ago, which is separate from the one that gave rise to modern Asians 25, thousands of years ago.

Demographic History of Oceania Inferred from Genome-wide Data

The Polynesian gene pool: an early contribution by Amerindians to Easter Island

  • E. Thorsby
  • History, Biology
    Philosophical Transactions of the Royal Society B: Biological Sciences
  • 2012
TLDR
An early Amerindian contribution to the Polynesian gene pool on Easter Island is demonstrated, and the usefulness of typing for immunogenetic markers such as HLA to complement mtDNA and Y chromosome analyses in anthropological investigations is illustrated.

Using ancient DNA to study the origins and dispersal of ancestral Polynesian chickens across the Pacific

TLDR
It is revealed that previous studies have been impacted by contamination with modern chicken DNA and, as a result, there is no evidence for Polynesian dispersal of chickens to pre-Columbian South America, and a group of unique, closely related haplotypes found only in the Pacific are found.

Further evidence of an Amerindian contribution to the Polynesian gene pool on Easter Island.

TLDR
Molecular genetic investigations of 21 other selected native Easter Islanders showed that two individuals carried some other common Amerindian HLA alleles, different from those found in previous investigations, which support the previous evidence of an Amerindia contribution to the gene pool on Easter Island.
...