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SUMMARY:Large-Scale Migration into Britain During the Middle to Late Bronz
 e Age - David Reich\, Harvard Medical School
DTSTART:20211119T131500Z
DTEND:20211119T140000Z
UID:TALK162373@talks.cam.ac.uk
CONTACT:Ruairidh Macleod
DESCRIPTION:ABSTRACT: “Present-day people from England and Wales harbour
  more ancestry derived from Early European Farmers (EEF) than people of th
 e Early Bronze Age. To understand this\, we generated genome-wide data fro
 m 793 individuals\, increasing data from the Middle to Late Bronze and Iro
 n Age in Britain by 12-fold\, and Western and Central Europe by 3.5-fold. 
 Between 1000-875 BCE\, EEF ancestry increased in southern Britain (England
  and Wales) but not northern Britain (Scotland) due to incorporation of mi
 grants who arrived at this time and over previous centuries\, and who were
  genetically most similar to ancient individuals from France. These migran
 ts contributed about half the ancestry of Iron Age people of England and W
 ales\, thereby creating a plausible vector for the spread of early Celtic 
 languages into Britain. These patterns are part of a broader trend of EEF 
 ancestry becoming more similar across Central and Western Europe in the Mi
 ddle to Late Bronze Age\, coincident with archaeological evidence of inten
 sified cultural exchange. There was comparatively less gene flow from cont
 inental Europe during the Iron Age\, and Britain’s independent genetic t
 rajectory is also reflected in the rise of the allele conferring lactase p
 ersistence to ~50% by this time compared to ~7% in Central Europe where it
  rose rapidly in frequency only a millennium later. This suggests that dai
 ry products were used in qualitatively different ways in Britain and in Ce
 ntral Europe over this period.”\n
LOCATION:Online via zoom
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