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Largest-to-date Genetic Snapshot Of Iceland 1,000 Years Ago Completed
Science News ^ | January 18, 2009 | Public Library of Science, via EurekAlert!

Posted on 02/07/2009 8:24:16 PM PST by SunkenCiv

Scientists at deCODE genetics have completed the largest study of ancient DNA from a single population ever undertaken. Analyzing mitochondrial DNA, which is passed from mother to offspring, from 68 skeletal remains, the study provides a detailed look at how a contemporary population differs from that of its ancestors. The results confirm previous deCODE work that used genetics to test the history of Iceland as recorded in the sagas. These studies demonstrated that the country seems to have been settled by men from Scandinavia – the vikings – but that the majority of the original female inhabitants were from the coastal regions of Scotland and Ireland, areas that regularly suffered raids by vikings in the years around the settlement of Iceland 1100 years ago... the original female settlers are genetically less closely related to present-day Icelanders, and instead more closely related to the present day populations of Scotland, Ireland and Scandinavia, as well as those of northwestern and southwestern Europe. This is a demonstration of a phenomenon known as 'genetic drift.' In essence, in any population certain individuals will have more offspring and, by chance and in this case over the course of 35 generations, many more descendants than others. And as a result, particularly in a small population, the genetic variety of the original population can decrease and change over time. In this study only mitochondrial DNA was studied, but the same phenomenon applies to the Y chromosome, which is passed from fathers to sons, and to any other part of the genome.

(Excerpt) Read more at sciencedaily.com ...


TOPICS: History; Science; Travel
KEYWORDS: godsgravesglyphs
The circles represent the gene pools of the Scottish and Irish, Icelandic and Scandinavian population groups at different points in time. Circle diameter broadly reflects the relative population sizes. The vertical arrows represent the transmission of DNA between generations within populations, while the diagonal arrows represent the settlement of Iceland from 870 to 930 AD from Scotland, Ireland and Scandinavia. (Credit: Helgason et al., doi:10.1371/journal.pgen.1000343.g002)

Largest-to-date Genetic Snapshot Of Iceland 1,000 Years Ago Completed

1 posted on 02/07/2009 8:24:16 PM PST by SunkenCiv
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Researchers retrieve authentic Viking DNA from 1,000-year-old skeletons
www.physorg.com | 05/28/2008 | Staff
Posted on 05/28/2008 6:46:59 AM PDT by Red Badger
http://www.freerepublic.com/focus/f-news/2022425/posts

Archaeological sensation in Oestfold [ Inca remains from 11th c Norway? ]
Norway Post | Tuesday, June 26, 2007 | Rolleiv Solholm (NRK)
Posted on 06/26/2007 11:34:20 PM PDT by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1856917/posts


2 posted on 02/07/2009 8:24:53 PM PST by SunkenCiv (https://secure.freerepublic.com/donate/____________________ Profile updated Monday, January 12, 2009)
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To: StayAt HomeMother; Ernest_at_the_Beach; 1ofmanyfree; 21twelve; 24Karet; 2ndDivisionVet; 31R1O; ...

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3 posted on 02/07/2009 8:25:06 PM PST by SunkenCiv (https://secure.freerepublic.com/donate/____________________ Profile updated Monday, January 12, 2009)
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To: SunkenCiv; AdmSmith; agrace; AnalogReigns; Cacique; caryatid; Celtjew Libertarian; CobaltBlue; ...
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4 posted on 02/07/2009 10:06:36 PM PST by martin_fierro (< |:)~)
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To: SunkenCiv
Without a study that takes samples on a time line, how is it possible to know when a strain of DNA arrives. I don't think Iceland had any cities in the Hanseatic League, but as an island nation I have to think that it was served by the merchants, a quite mobile slice of Europe's population. Many of the merchants transplanted their whole families & original sources show a large percentage of populations originating from other league cities.

Other than an extensive sampling on a time line, how would it be possible to know that a strain of DNA arrived in the tenth century rather than the seventeenth or eighteenth?

5 posted on 02/07/2009 10:19:21 PM PST by GoLightly
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To: martin_fierro
There was likely little or no trade involving non Scandinavian ships a thousand years ago. It likely that the Vikings who settled Iceland went out on raids in the British Isles and NW Europe and took their brides as part o their booty. They carried very few or no women with them on their riding voyages.
6 posted on 02/08/2009 4:59:15 AM PST by ThanhPhero (di hanh huong den La Vang)
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To: SunkenCiv
This is a demonstration of a phenomenon known as 'genetic drift.'

First we discover continental drift and now genetic drift. I think that its imperative that we put a stop to both of them. They are destroying the planet as we know it.

7 posted on 02/08/2009 6:59:17 AM PST by centurion316
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To: SunkenCiv

This is a demonstration of a phenomenon known as ‘genetic drift.’ “

Well, that is a polite way to say “kidnapping and rape”


8 posted on 02/08/2009 7:03:13 AM PST by patton (SPQA - the last, the least and the lost)
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To: patton

Another word would be slavery. I think Irish and Scottish women are due some reparations.


9 posted on 02/08/2009 9:21:53 AM PST by ValerieTexas
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To: ValerieTexas

The ones in Iceland? Now, think about that - they owe themselves?

Perhaps the longboats and knarls pulled up to the dock in Ireland, and 50 willing,nubile, young women jumped on board, to go colonise some far-away place named “ICELAND”...but it hardly seems likely.

Or, as we say in my family (Scots/Irish/German), “...there is a viking in the closet somewhere!”


10 posted on 02/08/2009 10:51:45 AM PST by patton (SPQA - the last, the least and the lost)
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To: SunkenCiv

People on the main island part of Iceland have last names in the Scandinavian tradition - father’s first name plus son or dotir as the sex of the person indicates. On the southern offshore islands, they have Irish and Welsh names. Supposedly, the slaves ran away and found refuge there.


11 posted on 02/08/2009 11:23:30 AM PST by marsh2
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To: GoLightly

Exactly — it wouldn’t be. The weakness of such studies is that they use the DNA samples which have mananged to survive — something largely the work of chance, give or take ancestral lines who managed to get busy. ;’)


12 posted on 02/08/2009 7:47:44 PM PST by SunkenCiv (https://secure.freerepublic.com/donate/____________________ Profile updated Monday, January 12, 2009)
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To: ThanhPhero

That was my first thought: that the female line descends from captives taken in raids on Scotland, Ireland, etc.


13 posted on 02/09/2009 7:00:41 AM PST by Tallguy ("The sh- t's chess, it ain't checkers!" -- Alonzo (Denzel Washington) in "Training Day")
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