Title |
Investigating the Global Dispersal of Chickens in Prehistory Using Ancient Mitochondrial DNA Signatures
|
---|---|
Published in |
PLOS ONE, July 2012
|
DOI | 10.1371/journal.pone.0039171 |
Pubmed ID | |
Authors |
Alice A. Storey, J. Stephen Athens, David Bryant, Mike Carson, Kitty Emery, Susan deFrance, Charles Higham, Leon Huynen, Michiko Intoh, Sharyn Jones, Patrick V. Kirch, Thegn Ladefoged, Patrick McCoy, Arturo Morales-Muñiz, Daniel Quiroz, Elizabeth Reitz, Judith Robins, Richard Walter, Elizabeth Matisoo-Smith |
Abstract |
Data from morphology, linguistics, history, and archaeology have all been used to trace the dispersal of chickens from Asian domestication centers to their current global distribution. Each provides a unique perspective which can aid in the reconstruction of prehistory. This study expands on previous investigations by adding a temporal component from ancient DNA and, in some cases, direct dating of bones of individual chickens from a variety of sites in Europe, the Pacific, and the Americas. The results from the ancient DNA analyses of forty-eight archaeologically derived chicken bones provide support for archaeological hypotheses about the prehistoric human transport of chickens. Haplogroup E mtDNA signatures have been amplified from directly dated samples originating in Europe at 1000 B.P. and in the Pacific at 3000 B.P. indicating multiple prehistoric dispersals from a single Asian centre. These two dispersal pathways converged in the Americas where chickens were introduced both by Polynesians and later by Europeans. The results of this study also highlight the inappropriate application of the small stretch of D-loop, traditionally amplified for use in phylogenetic studies, to understanding discrete episodes of chicken translocation in the past. The results of this study lead to the proposal of four hypotheses which will require further scrutiny and rigorous future testing. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
New Zealand | 1 | 13% |
United States | 1 | 13% |
Brazil | 1 | 13% |
Argentina | 1 | 13% |
Norway | 1 | 13% |
United Kingdom | 1 | 13% |
Unknown | 2 | 25% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 6 | 75% |
Scientists | 2 | 25% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Chile | 1 | <1% |
France | 1 | <1% |
Australia | 1 | <1% |
Brazil | 1 | <1% |
Finland | 1 | <1% |
United Kingdom | 1 | <1% |
Spain | 1 | <1% |
United States | 1 | <1% |
Unknown | 167 | 95% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 36 | 21% |
Student > Bachelor | 27 | 15% |
Researcher | 23 | 13% |
Student > Doctoral Student | 17 | 10% |
Student > Master | 12 | 7% |
Other | 31 | 18% |
Unknown | 29 | 17% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 63 | 36% |
Arts and Humanities | 18 | 10% |
Social Sciences | 16 | 9% |
Biochemistry, Genetics and Molecular Biology | 15 | 9% |
Environmental Science | 10 | 6% |
Other | 25 | 14% |
Unknown | 28 | 16% |