It’s not clear how long the change in dominant DNA took.
I suspect it wasn’t overnight, but rather over many generations.
Sent from my iPhone
> On 22 Feb 2018, at 11:57, Kevin Flude <[log in to unmask]> wrote:
> I see the Guardian has joined Salon in accepting the results of the Beaker
> One thing if we accept this - the date of the Beaker 'take over' is about
> the same time as the Sarsen Stonehenge. Any one got a handle on whether
> this is before or after?
> To my mind this complete (90% change in DNA) does not sit easily with what
> looks like continuity in henge building? Unless the 'takeover' is slow and
> And now the Amesbury Archer instead of being a visitor from farflung lands
> is now just one of the influx. Thus diminishing the idea the Stonehenge
> was 'international'.
> Kevin Flude
>> On 22 February 2018 at 10:44, Martin Counihan <[log in to unmask]> wrote:
>> Yes, it is a very interesting and important paper. Let me just point out
>> that it appeared several months ago on bioRxiv.org (the Genomics section).
>> If you search there under the author "Reich" you will find numerous papers
>> including some which are more recent than the one you have drawn attention
>> In my view, it is well worth looking at bioRxiv from time to time to keep
>> completely up to date with this field.
>> Martin Counihan
>>> Sent: Thursday, February 22, 2018 at 10:16 AM
>>> From: "Ian Holliday" <[log in to unmask]>
>>> To: [log in to unmask]
>>> Subject: Re: [BRITARCH] DNA and the origins of Britain/ Saxons and
>> Britons etc,.
>>> Quite an interesting article in nature on Feb 21
>>> Iain Mathieson et al., "The genomic history of southeastern Europe."
>> Nature. Published online February 21, 2018. DOI: 10.1038/nature25778
>>> Read more at: https://phys.org/news/2018-02-ancient-dna-tales-humans-
>>> I know next to nothing about DNA so, like an idiot, I did a commercial
>> autosomnal DNA test to try to break a brickwall in my family history dating
>> from C18. Of course, the only way this would have helped was if someone on
>> a close lineage had also done a test. This test tells me that, in the dim
>> and distant past all my family came from Western Europe or Scandinavia.
>> Realising (eventually) that the brickwall was on my paternal line, I took a
>> commercial Y-dna test. This tells me that I have a haplotype that is
>> rare-ish in Europe except for Sardinia, the Basque country and up through
>> the Atlantic fringe, which the company interprets as meaning my paternal
>> line is that of the megalith builders of pre-history. So am I left with
>> thinking that my Scan heritage is from my mother, I wonder?
>>> However, all this stuff is diluted by the fact that the commercial tests
>> only compare the present living populations of locations rather than
>> ancient DNA sources - so that database will continually change, as will my
>> ethnic roots, I'd guess.
>>> Oh well, 150 quid is an expensive lesson!