tag:blogger.com,1999:blog-7315236707728759521.post833376551968324166..comments2024-03-28T21:52:52.100-06:00Comments on Dispatches From Turtle Island: African mtDNA Rare But Not Absent In EuropeAndrew Oh-Willekehttp://www.blogger.com/profile/02537151821869153861noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-7315236707728759521.post-45056635726253068052012-03-03T21:16:44.609-07:002012-03-03T21:16:44.609-07:00There are many immigrants in Europe, but the way t...There are many immigrants in Europe, but the way that the sample design is done in these kinds of studies generally requires that one have four local grandparents and generally involves adult subjects, so to the extent that there is recent historic era immigrant ancestry, it would generally be pre-WWII era. And, in many places where that ancestry appears, pre-WWII recent historic era immigration is unlikely. Also, if recent immigration were driving the result, France and the UK would be spiked dramatically above other parts of non-Southern Coastal Europe due to their colonial histories relative to other European areas, but those areas don't show those kinds of spikes in frequency.andrewhttps://www.blogger.com/profile/08172964121659914379noreply@blogger.comtag:blogger.com,1999:blog-7315236707728759521.post-6934920053919695672012-03-03T21:01:08.891-07:002012-03-03T21:01:08.891-07:00There are many African and Middle Eastern immigran...There are many African and Middle Eastern immigrants living in Europe, so it is possible that some of the sporadic L found in Northern and Central Europe could be from recently admixed people sampled in studies (there is a large mixed race population in the UK and France for example). IMO, researchers must always check whether individuals with exotic haplogroups happen to have recent admixture or not, so this could help determine whether it was an ancient 'indigenous' introduction or a recent one.jes-rhttps://www.blogger.com/profile/13572668095214926909noreply@blogger.com