title: Investigating the global dispersal of chickens in prehistory using ancient mitochondrial DNA signatures.
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.
authors: Department of Archaeology and Palaeoanthropology, University of New England, Armidale, Australia. astorey2@une.edu.au
authors: Alice A
authors: AA
authors: Storey
authors: J Stephen
authors: JS
authors: Athens
authors: David
authors: D
authors: Bryant
authors: Mike
authors: M
authors: Carson
authors: Kitty
authors: K
authors: Emery
authors: Susan
authors: S
authors: deFrance
authors: Charles
authors: C
authors: Higham
authors: Leon
authors: L
authors: Huynen
authors: Michiko
authors: M
authors: Intoh
authors: Sharyn
authors: S
authors: Jones
authors: Patrick V
authors: PV
authors: Kirch
authors: Thegn
authors: T
authors: Ladefoged
authors: Patrick
authors: P
authors: McCoy
authors: Arturo
authors: A
authors: Morales-Muñiz
authors: Daniel
authors: D
authors: Quiroz
authors: Elizabeth
authors: E
authors: Reitz
authors: Judith
authors: J
authors: Robins
authors: Richard
authors: R
authors: Walter
authors: Elizabeth
authors: E
authors: Matisoo-Smith
mesh_terms: D000818:Animals; D002645:Chickens / Q000235:genetics*; D004272:DNA, Mitochondrial / Q000235:genetics*; D005580:Fossils; D006239:Haplotypes / Q000235:genetics*; D006801:Humans
chemical_list: D004272:DNA, Mitochondrial