Selected Article from the BHAS Bi-Annual magazine "Flint"
Spring 2016
Digging into your DNA
I'd guess that most people these days are familiar with the use of
DNA analysis to identify individuals, familial relationships, ethnic
origins etc. in archaeology as well as criminal investigations.
Perhaps less is known about the opportunities that exist now for
anyone of us to have our own DNA tested - at a cost, of course. I've
tried out several of these options over recent years, mainly in
connection with family history research.
I first became aware of DNA testing when I read 'The Seven Daughters
of Eve' by Brian Sykes, Professor of Human Genetics at Oxford
University. This very readable book describes (in layman's terms) his
work on mitochondria! DNA (mtDNA) and the use it can serve in looking
at human history. MtDNA is passed down the female line. Mothers pass
it to both daughters and sons but only the daughters pass it to their
offspring. Prof. Sykes had used this to trace population movements in
the Pacific islands and demonstrated that these had followed a route
through the islands from SE Asia and not by sea from South America.
He postulated the existence of 'Mitochondria! Eve', the woman from
whom all humans are descended. It's now believed that she lived in
eastern Africa 1-200,000 years ago. (Her male equivalent, YDNA Adam,
lived 2-500,000 years ago.) His research showed that about 95% of the
present European population are descended from one of 7 women, the
'daughters of Eve', and he created names and fictional pen portraits
of each, to illustrate the era and culture in which they lived. He
set up a company, Oxford Ancestors, to provide testing to the public
and I had my DNA tested. This told me that my maternal ancestor had
lived on the north Italian plains about 15,000 years ago. A quirky
additional detail was that 'Oetzi the iceman', whose freeze-mummified
remains were found in an Alpine glacier in 1991 was also a descendant
of hers.
After I started investigating my more recent family history I found
that other types of DNA testing were available and more useful in
this context. I traced my paternal line, the Mac-Gregors, back to
1743, where I got stuck. I joined the Clan Gregor Society in the hope
of finding help with this and found that a clan DNA project had just
been started. The motivation for this is that the clan was officially
outlawed from 1603 to 1773, meaning that it was potentially death to
use the name MacGregor. Many gave up the name and, understandably,
adopted another. Nowadays, people who are trying to trace their
family history and believe that they were originally Mac-Gregors
often cannot find a paper trail to prove it so the DNA project was
born. Comparison of a potential MacGregor's YDNA with that of someone
whose descent line is attested can prove - or disprove - the clan
connection. I had to contact a distant male cousin to provide the
YDNA and although it hasn't yet helped much in going further back in
my genealogy, it did lead to the discovery of another distant cousin
in Australia!
The clan project is hosted by an American company, Family Tree DNA;
but at a big clan gathering, in Scotland of course, in 2014 we had a
talk from Dr. Jim Wilson from Edinburgh Uni-versity who is also very
interested in the use of DNA in gene-alogy and has been working with
the MacGregor DNA project team. He and a colleague have set up
another company, Brit-ain's DNA, which provides both mtDNA and YDNA
testing and I decided to go for this as well to investigate my
maternal an-cestry. As a woman, I can of course only test the mtDNA,
the motherline, and had to involve a male cousin on my mother's side
for the YDNA test, the fatherline. The motherline result was a bit of
a surprise. It's called 'Levantine' and is apparently most commonly
found among Ashkenazi Jews. There is no family knowledge of Jewish
ancestry and my guess, linking in the result from Oxford Ancestors,
is that my maternal ances-tors were part of a group who lived on in
the Middle East until relatively recent (in archaeological terms)
times and therefore share the DNA profile of others who stayed on and
became the Jews. In testing my mother's paternal ancestors I was
in-terested to find out if it would help with the belief that they
were Jutes. The family name, Smitherman, is relatively unusual and
was found mainly in East Kent and the Isle of Wight, where the Jutes
settled. That result came back as 'Teutonic', most common in northern
Germany and southern Scandinavia, which fits with the theory. There
was an additional comment that the specific sub-group was one that
had been identified only very recently and its dispersal was not yet
well un-derstood - so we may learn more in time.
So if you find that you become as fascinated as I have been with the
whole idea of DNA and deep ancestry - and have £200-250 to spare
- go digging into your DNA!
Joan MacGregor

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