Amy2B copy number variation reveals starch diet adaptation in ancient European dogs
2016
Ollivier, Morgane | Tresset, Anne | Bastian, Fabiola | Lagoutte, Laëtitia | Axelsson, Erik | Arendt, Maja-Louise | Balasescu, Adrian | Sablin, Mikhail V. | Salanova, Laure | Haenni, Catherine | Vigne, Jean-Denis | Hitte, Christophe | Mashkour, Marjan | Laboratoire d'Ecologie Alpine (LECA) ; Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]) | Institut de Génomique Fonctionnelle de Lyon (IGFL) ; École normale supérieure de Lyon (ENS de Lyon) ; Université de Lyon-Université de Lyon-Institut National de la Recherche Agronomique (INRA)-Université Claude Bernard Lyon 1 (UCBL) ; Université de Lyon-Centre National de la Recherche Scientifique (CNRS) | BioArchéologie, Interactions Sociétés Environnements (BioArch) ; Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS) | Institut de Génétique et Développement de Rennes (IGDR) ; Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS)-Structure Fédérative de Recherche en Biologie et Santé de Rennes (Biosit : Biologie - Santé - Innovation Technologique) | Science for Life Laboratory ; Uppsala University-Department of Medical Biochemistry and Microbiology | Musée National d'Histoire de Bucarest (MNIR) ; MNIR | Zoological Institute of Russian Academy of Sciences ; Russian Academy of Sciences [Moscow] (RAS) | Archéologie et Philologie d'Orient et d'Occident (AOROC) ; École Pratique des Hautes Études (EPHE) ; Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Département des Sciences de l'Antiquité - ENS-PSL (DSA ENS-PSL) ; École normale supérieure - Paris (ENS-PSL) ; Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-École normale supérieure - Paris (ENS-PSL) ; Université Paris Sciences et Lettres (PSL) | CNRS, crédits récurrents | Mairie de Bury | MCC | ENS Lyon | Nestlé Purina | CNCS-UEFISCDI | ZIN RAS | La sépulture de Bury - Oise
International audience
Показать больше [+] Меньше [-]Английский. Extant dog and wolf DNA indicates that dog domestication was accompanied by the selection of a series of duplications on the Amy2B gene coding for pancreatic amylase. In this study, we used a palaeogenetic approach to investigate the timing and expansion of the Amy2B gene in the ancient dog populations of Western and Eastern Europe and Southwest Asia. Quantitative polymerase chain reaction was used to estimate the copy numbers of this gene for 13 ancient dog samples, dated to between 15 000 and 4000 years before present (cal. BP). This evidenced an increase of Amy2B copies in ancient dogs from as early as the 7th millennium cal. BP in Southeastern Europe. We found that the gene expansion was not fixed across all dogs within this early farming context, with ancient dogs bearing between 2 and 20 diploid copies of the gene. The results also suggested that selection for the increased Amy2B copy number started 7000 years cal. BP, at the latest. This expansion reflects a local adaptation that allowed dogs to thrive on a starch rich diet, especially within early farming societies, and suggests a biocultural coevolution of dog genes and human culture.
Показать больше [+] Меньше [-]Ключевые слова АГРОВОК
Библиографическая информация
Эту запись предоставил Institut national de la recherche agronomique