Wave-of-advance models of the diffusion of the Y chromosome haplogroup R1b1b2 in Europe. - BCM : Biologie Computationnelle et Mathématique Accéder directement au contenu
Article Dans Une Revue PLoS ONE Année : 2011

Wave-of-advance models of the diffusion of the Y chromosome haplogroup R1b1b2 in Europe.

Per Sjödin
  • Fonction : Auteur

Résumé

Whether or not the spread of agriculture in Europe was accompanied by movements of people is a long-standing question in archeology and anthropology, which has been frequently addressed with the help of population genetic data. Estimates on dates of expansion and geographic origins obtained from genetic data are however sensitive to the calibration of mutation rates and to the mathematical models used to perform inference. For instance, recent data on the Y chromosome haplogroup R1b1b2 (M269) have either suggested a Neolithic origin for European paternal lineages or a more ancient Paleolithic origin depending on the calibration of Y-STR mutation rates. Here we examine the date of expansion and the geographic origin of hgR1b1b2 considering two current estimates of mutation rates in a total of fourteen realistic wave-of-advance models. We report that a range expansion dating to the Paleolithic is unlikely to explain the observed geographical distribution of microsatellite diversity, and that whether the data is informative with respect to the spread of agriculture in Europe depends on the mutation rate assumption in a critical way.

Dates et versions

hal-00655069 , version 1 (26-12-2011)

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Citer

Per Sjödin, Olivier François. Wave-of-advance models of the diffusion of the Y chromosome haplogroup R1b1b2 in Europe.. PLoS ONE, 2011, 6 (6), pp.e21592. ⟨10.1371/journal.pone.0021592⟩. ⟨hal-00655069⟩
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