Page 1 of 8 123 ... LastLast
Results 1 to 10 of 72

Thread: Why would a British person get low Great Britain ?

  1. #1
    Gold Member Class
    Posts
    1,358
    Sex
    Location
    Southend on Sea,England
    Ethnicity
    Caucasian-White
    Nationality
    British
    Y-DNA
    E-Z16664
    mtDNA
    H67

    United Kingdom Scotland England Ireland

    Why would a British person get low Great Britain ?

    In my case 15% Great Britain. I get 38% Irish. My known ancestry English 50% Scottish 31% Irish 19%
    Please support Mental health research and world community grid

    Hidden Content
    Hidden Content
    Hidden Content
    Hidden Content

  2. The Following User Says Thank You to firemonkey For This Useful Post:

     sgdavies@hotmail.com (09-06-2017)

  3. #2
    Registered Users
    Posts
    1,356
    Sex
    Location
    USA
    Nationality
    American
    Y-DNA
    R1a1a
    mtDNA
    H

    Italy Sicily Portugal Poland Cape Verde
    Quote Originally Posted by firemonkey View Post
    In my case 15% Great Britain. I get 38% Irish. My known ancestry English 50% Scottish 31% Irish 19%
    This is my opinion: Ancestry.com poorly chose a very Anglo-Saxon influenced part of England to be the 'Great Britain' reference population, which makes the less Anglo-Saxon parts of England come up more Irish, as well as the Scottish and Welsh scoring higher Ireland. The Irish component is likely the more indigenous one in the British isles, and it would have been more meaningful to have "Great Britain" be centered on a more indigenous part of the UK, which would reduce the amount of Irish that the British are scoring.

  4. The Following 8 Users Say Thank You to Sikeliot For This Useful Post:

     Amerijoe (09-06-2017), astondive (09-07-2017), JohnHowellsTyrfro (09-06-2017), L1983 (09-06-2017), sgdavies@hotmail.com (09-06-2017), sktibo (09-06-2017), spruithean (09-06-2017), Trixster (09-06-2017)

  5. #3
    Registered Users
    Posts
    181
    Sex
    Location
    Ontario
    Ethnicity
    "Celto-Germanic"
    Nationality
    Canadian
    Y-DNA
    I-Z140+ Y7198?

    Canada Netherlands Scotland Ireland Northern Ireland England
    Likely something to do with the overall similarities between the people of Ireland and Britain along with the similarities to people in the rest of Europe. I feel ethnic estimations are not an exact science.

    EDIT:

    Also Sikeliot has a valid point that I had not yet thought about!
    Y-DNA: I-Z140 (Y7198^?) (Scotland)
    mtDNA: pending (Westeremden, Netherlands)
    Other lines:
    R-M222 (Ireland), R-L21 (Ireland & Scotland), I-M223 (Ireland), R-S1141 (Scotland), R-U198 (Netherlands), mtHg J1c3 (Ireland)
    Autosomal FF: 100% European (57% West/Central, 36% British Isles, 7% Scandinavian)
    Known ancestry
    Paternal: Britain & Ireland, France and Germany
    Maternal: Netherlands

  6. The Following 2 Users Say Thank You to spruithean For This Useful Post:

     Amerijoe (09-06-2017), sgdavies@hotmail.com (09-06-2017)

  7. #4
    Registered Users
    Posts
    1,356
    Sex
    Location
    USA
    Nationality
    American
    Y-DNA
    R1a1a
    mtDNA
    H

    Italy Sicily Portugal Poland Cape Verde
    Also the fact that the British score more Irish than the reverse implies that the Irish is the "original" British Isles component and the British descend from Irish-like people, rather than the reverse, though I do believe with all of Ireland sampled, you would find some Irish scoring substantial British, especially around Dublin and along the southeastern coast (Cork, Waterford, Wexford) and likely some in the more Norman-influenced parts of Connacht.

    However, due to the fact that all of these Northwest Europeans are primarily Bell Beaker descendants, on GEDmatch it is difficult to tell recent from ancient ancestry and the Irish, English, Scots, and Welsh are nearly indistinguishable on there.

    If I had to guess, I would assume the "Great Britain" component is centered around Kent, East Anglia, or Essex.

  8. The Following 3 Users Say Thank You to Sikeliot For This Useful Post:

     Amerijoe (09-06-2017), JohnHowellsTyrfro (09-06-2017), sgdavies@hotmail.com (09-06-2017)

  9. #5
    Registered Users
    Posts
    1,642
    Sex
    Location
    B.C.
    Ethnicity
    Métis
    Nationality
    Canadian
    Y-DNA
    R-Z195 (DF27)
    mtDNA
    T2B

    Canada England Scotland Germany France
    Their GB reference population seems to be strongly Southern (Southeast I think) English, which we know now to be a highly mixed population for the English - and the people I've seen who get extraordinarily high GB percentages have been Southern English or people from mixed backgrounds. There's a thread I started somewhere exploring how the GB category splits into Scandinavia, EW, and Ireland when the same person tests twice, while many other European populations remain the same on the second test.

    What did you get for Europe West? a lot of people with English ancestry seem to land closer to Europe West than they do to Ancestry's "Great Britain"

    Quote Originally Posted by Sikeliot View Post
    This is my opinion: Ancestry.com poorly chose a very Anglo-Saxon influenced part of England to be the 'Great Britain' reference population, which makes the less Anglo-Saxon parts of England come up more Irish, as well as the Scottish and Welsh scoring higher Ireland. The Irish component is likely the more indigenous one in the British isles, and it would have been more meaningful to have "Great Britain" be centered on a more indigenous part of the UK, which would reduce the amount of Irish that the British are scoring.
    I think so, although interestingly there's a YouTube video of a Welsh individual talking about his and his father's Ancestry DNA results: His dad, although being North Welsh from time immemorial, got a pretty high GB percentage. IIRC it was about 60% GB 30% Ireland. The individual who made the video was also Welsh but got about an even split between Ireland and Great Britain... 50 50 ish IIRC. I've ranted about this elsewhere but I'll say it again here, I'd love to see Ancestry's test without the GB component, those results would be a lot more useful.
    Last edited by sktibo; 09-06-2017 at 01:06 AM.
    Paper trail ancestry to the best of my knowledge:
    English 28.12%, German 18.75%, Scottish 17.96%, Irish (mostly lowland Scottish origin) 12.5%, French 8.2%, Eastern European 6.25%, Welsh 3.125%, Native American 1.95%, and Colonial American, 3.125%, which cannot be determined with complete certainty: there is Dutch (at least 1.36%) and some English. The rest could include Spanish, Norwegian, German, French, and Native American, but these percentages would be minuscule.

  10. The Following 3 Users Say Thank You to sktibo For This Useful Post:

     A Norfolk L-M20 (09-06-2017), Amerijoe (09-06-2017), sgdavies@hotmail.com (09-06-2017)

  11. #6
    Registered Users
    Posts
    1,356
    Sex
    Location
    USA
    Nationality
    American
    Y-DNA
    R1a1a
    mtDNA
    H

    Italy Sicily Portugal Poland Cape Verde
    Quote Originally Posted by sktibo View Post
    Their GB reference population seems to be strongly Southern (Southeast I think) English, which we know now to be a highly mixed population for the English - and the people I've seen who get extraordinarily high GB percentages have been Southern English or people from mixed backgrounds.
    Based on the spreadsheet made by a user here who compiled results, West Midlands, northern England, and even some parts of the east that are not the far southeast scored more of the Irish component than any other. Southeast England and East Anglia are the ones scoring (and likely comprising) the Great Britain component.

    As for the Irish, the Great Britain component seems highest (2-3%, which is almost nothing) in the south of Ireland, Munster province, but a few people from Connacht scored 1-2%. These people, otherwise, score nearly full Irish. One person from Northern Ireland scored 88% Irish, 5% Europe West, but no British.

  12. The Following 2 Users Say Thank You to Sikeliot For This Useful Post:

     A Norfolk L-M20 (09-06-2017), sktibo (09-06-2017)

  13. #7
    Gold Member Class
    Posts
    1,358
    Sex
    Location
    Southend on Sea,England
    Ethnicity
    Caucasian-White
    Nationality
    British
    Y-DNA
    E-Z16664
    mtDNA
    H67

    United Kingdom Scotland England Ireland
    Quote Originally Posted by sktibo View Post
    Their GB reference population seems to be strongly Southern (Southeast I think) English, which we know now to be a highly mixed population for the English - and the people I've seen who get extraordinarily high GB percentages have been Southern English or people from mixed backgrounds. There's a thread I started somewhere exploring how the GB category splits into Scandinavia, EW, and Ireland when the same person tests twice, while many other European populations remain the same on the second test.

    What did you get for Europe West? a lot of people with English ancestry seem to land closer to Europe West than they do to Ancestry's "Great Britain"
    My full breakdown: Irish 38% Scandinavian 23% Europe West 22% Great Britain 15% Europe East <1% Italy/Greece <1%
    Please support Mental health research and world community grid

    Hidden Content
    Hidden Content
    Hidden Content
    Hidden Content

  14. The Following 2 Users Say Thank You to firemonkey For This Useful Post:

     Amerijoe (09-06-2017), sktibo (09-06-2017)

  15. #8
    Registered Users
    Posts
    1,642
    Sex
    Location
    B.C.
    Ethnicity
    Métis
    Nationality
    Canadian
    Y-DNA
    R-Z195 (DF27)
    mtDNA
    T2B

    Canada England Scotland Germany France
    Quote Originally Posted by firemonkey View Post
    My full breakdown: Irish 38% Scandinavian 23% Europe West 22% Great Britain 15% Europe East <1% Italy/Greece <1%
    Thought that would be the case. I think it is a good indication of a problematic reference population when your Europe West population is a closer match than Great Britain for people with significant English ancestry

    Quote Originally Posted by Sikeliot View Post
    Based on the spreadsheet made by a user here who compiled results, West Midlands, northern England, and even some parts of the east that are not the far southeast scored more of the Irish component than any other. Southeast England and East Anglia are the ones scoring (and likely comprising) the Great Britain component.

    As for the Irish, the Great Britain component seems highest (2-3%, which is almost nothing) in the south of Ireland, Munster province, but a few people from Connacht scored 1-2%. These people, otherwise, score nearly full Irish. One person from Northern Ireland scored 88% Irish, 5% Europe West, but no British.
    Thank goodness for Don Felipe collecting those results, going off of what Ancestry DNA publishes could drive a beginning DNA tester crazy with confusion. I think it's JDay on here who is a mixture of Irish, German, and English, and he got over 90% Great Britain IIRC, while belonging to an Irish genetic community. His results are a great example of how a mixed Northern European will appear to Ancestry as almost entirely Great Britain, and we do know that the Southeastern English are the most mixed of the English genetic groups so I think this is why this sort of thing happens. I'm 73% Great Britain myself on Ancestry DNA and you can see in my signature that I'm quite mixed.

    Edit: http://www.anthrogenica.com/showthre...152#post240152
    Jday's results. Post #157. 91% Great Britain, only 3% Ireland despite significant Irish ancestry, looks to be mostly German.
    Last edited by sktibo; 09-06-2017 at 03:31 AM.
    Paper trail ancestry to the best of my knowledge:
    English 28.12%, German 18.75%, Scottish 17.96%, Irish (mostly lowland Scottish origin) 12.5%, French 8.2%, Eastern European 6.25%, Welsh 3.125%, Native American 1.95%, and Colonial American, 3.125%, which cannot be determined with complete certainty: there is Dutch (at least 1.36%) and some English. The rest could include Spanish, Norwegian, German, French, and Native American, but these percentages would be minuscule.

  16. The Following 5 Users Say Thank You to sktibo For This Useful Post:

     A Norfolk L-M20 (09-06-2017), Amerijoe (09-06-2017), kostoffj (09-06-2017), L1983 (09-06-2017), sgdavies@hotmail.com (09-06-2017)

  17. #9
    Registered Users
    Posts
    1,440
    Sex
    Location
    South East Wales UK
    Ethnicity
    Welsh
    Nationality
    British
    Y-DNA
    R1bS21 - S11136
    mtDNA
    J1c1b2a

    Ancestry seem to have a very limited understanding of British origins. They seem to think British and Anglo Saxon are the same thing. I wouldn't test with them to be honest not for British ancestry anyway. John

  18. The Following 2 Users Say Thank You to JohnHowellsTyrfro For This Useful Post:

     Amerijoe (09-06-2017), sktibo (09-06-2017)

  19. #10
    Registered Users
    Posts
    322
    Sex
    Nationality
    English
    mtDNA
    J1c2

    England Ireland
    I got 61% Europe West and <1% GB with Ancestry. Mum got roughly 30/40 split between Europe West and GB without looking.

    Edit: added our results

    Edit: We are also predominantly Southern English, with my dad having a grandmother from Cork.

    L-R Me, dad, mum
    Attached Images Attached Images
    Last edited by L1983; 09-06-2017 at 04:35 PM.
    Known ancestry: English (mostly S/SE England) + Irish (Cork)

  20. The Following 3 Users Say Thank You to L1983 For This Useful Post:

     A Norfolk L-M20 (09-08-2017), ADW_1981 (09-06-2017), sktibo (09-06-2017)

Page 1 of 8 123 ... LastLast

Similar Threads

  1. Replies: 26
    Last Post: 08-25-2017, 03:52 PM
  2. Great britain dna
    By Mattychatty in forum AncestryDNA
    Replies: 23
    Last Post: 06-20-2017, 05:58 PM
  3. Map - Native Tribes of Great Britain.
    By JohnHowellsTyrfro in forum History (Ancient)
    Replies: 2
    Last Post: 09-12-2016, 12:55 PM
  4. R-U106 in Great Britain: Distribution map
    By Passa in forum R1b-U106
    Replies: 97
    Last Post: 07-26-2016, 03:25 AM
  5. Regional Personality Differences in Great Britain
    By Jean M in forum Autosomal (auDNA)
    Replies: 1
    Last Post: 04-10-2015, 05:19 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •