Document Detail


Origins and dispersals of Pacific peoples: evidence from mtDNA phylogenies of the Pacific rat.
MedLine Citation:
PMID:  15184658     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The human settlement of the Pacific in general, and the origin of the Polynesians in particular, have been topics of debate for over two centuries. Polynesian origins are most immediately traced to people who arrived in the Fiji, Tonga, and Samoa region approximately 3,000 B.P. and are clearly associated with the Lapita Cultural Complex. Although this scenario of the immediate origins of the Polynesians is generally accepted, the debate on the ultimate origin of the Polynesians and the Lapita cultural complex continues. Our previous research has shown that analyses of mtDNA variation in the Pacific rat (Rattus exulans), often transported as a food item in the colonizing canoes, are valuable for tracing prehistoric human migration within Polynesia. Here we present mtDNA phylogenies based on approximately 240 base pairs of the d-loop from both archaeological and modern samples collected from Island Southeast Asia and the Pacific. We identify three major haplogroups, two of which occur in the Pacific. Comparing our results with Lapita models of Oceanic settlement, we are able to reject two often cited but simplistic models, finding support instead for multifaceted models incorporating a more complex view of the Lapita intrusion. This study is unique and valuable in that R. exulans is the only organism associated with the Lapita dispersal for which there are sufficient ancient and extant populations available for genetic analysis. By tracking population changes through time, we can understand more fully the settlement process and population interactions in both Near and Remote Oceania.
Authors:
E Matisoo-Smith; J H Robins
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2004-06-07
Journal Detail:
Title:  Proceedings of the National Academy of Sciences of the United States of America     Volume:  101     ISSN:  0027-8424     ISO Abbreviation:  Proc. Natl. Acad. Sci. U.S.A.     Publication Date:  2004 Jun 
Date Detail:
Created Date:  2004-06-16     Completed Date:  2004-08-05     Revised Date:  2013-04-18    
Medline Journal Info:
Nlm Unique ID:  7505876     Medline TA:  Proc Natl Acad Sci U S A     Country:  United States    
Other Details:
Languages:  eng     Pagination:  9167-72     Citation Subset:  IM    
Affiliation:
Department of Anthropology and Allan Wilson Centre for Molecular Ecology and Evolution, University of Auckland, P.B. 92019, Auckland, New Zealand. e.matisoo-smith@auckland.ac.nz
Data Bank Information
Bank Name/Acc. No.:
GENBANK/AY604202;  AY604203;  AY604204;  AY604205;  AY604206;  AY604207;  AY604208;  AY604209;  AY604210;  AY604211;  AY604212;  AY604213;  AY604214;  AY604215;  AY604216;  AY604217;  AY604218;  AY604219;  AY604220;  AY604221;  AY604222;  AY604223;  AY604224;  AY604225;  AY604226;  AY604227;  AY604228;  AY604229;  AY604230;  AY604231;  AY604232;  AY604233
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MeSH Terms
Descriptor/Qualifier:
Animals
Asia
Base Sequence
DNA, Mitochondrial / genetics*
Emigration and Immigration*
Genetics, Population*
Humans
Molecular Sequence Data
Muridae / genetics*
Pacific Islands
Phylogeny
Rats
Chemical
Reg. No./Substance:
0/DNA, Mitochondrial
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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