Page 1 of 2 12 LastLast
Results 1 to 10 of 11

Thread: Why do I score more Italy/Greece than Iberian on AncestryDNA?

  1. #1
    Registered Users
    Posts
    20
    Sex

    Why do I score more Italy/Greece than Iberian on AncestryDNA?

    What could the reason be?

    Maybe Northern Spaniards score higher Iberian Peninsula, while Southern Spaniards score Italy/Greece?

    Here's a Northern Spaniard:
    Northern Spaniards on AncestryDNA

    Europe 98%

    Iberian Peninsula 68%
    Europe West 14%
    Italy/Greece 7%

    Trace Regions: 9%

    Great Britain 4%
    Europe East 2%
    Scandinavia 2%
    Ireland 1%

    Africa: < 1%
    < 1% Africa North < 1%
    West Asia < 1%
    < 1% Caucasus < 1%


    Here's a Southern Spaniard from Valencia:



    And here's mine:


    Could it be possible that I have predominantly Southern Spanish Ancestry?

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

     Baltimore1937 (12-20-2015),  kingjohn (12-20-2015)

  3. #2
    Registered Users
    Posts
    20
    Sex

    Bump?

  4. #3
    Banned
    Posts
    494
    Sex
    Ethnicity
    1/2 Ilocano 1/2 Tagalog
    Nationality
    American
    Y-DNA (P)
    C-M130
    mtDNA (M)
    B4a1a

    Philippines
    I think it is because of the Sephardic DNA


  5. The Following 3 Users Say Thank You to shazou For This Useful Post:

     kingjohn (12-20-2015),  lwell (02-27-2017),  Potentia (12-22-2015)

  6. #4
    Registered Users
    Posts
    1,179
    Sex
    Location
    Washington state
    Ethnicity
    European blend
    Nationality
    USA
    Y-DNA (P)
    R1a1a1a1 L664/YP5623
    mtDNA (M)
    U5b2b2/G228A

    United States of America European Union Norway United Kingdom Germany Imperial
    Oh, so maybe my 1% Italy-Greece is really part of my Iberian Peninsula (4%). So where did that combined 5% come from? I don't have any Jewish %. Those few lines on my maternal side going back to Medieval times wouldn't show up after all this time, would they? All I can do is speculate.

  7. #5
    Registered Users
    Posts
    485
    Sex
    Ethnicity
    Spanish
    Nationality
    Spanish

    Spain
    Latin-Americans have a lot of Sephardic ancestry, which might reduce their iberian score and increase the Italy/Greece (which I suppose is pretty high in Sephardics).

  8. The Following 2 Users Say Thank You to sweuro For This Useful Post:

     kingjohn (12-21-2015),  lwell (02-27-2017)

  9. #6
    Registered Users
    Posts
    20
    Sex

    Hm. So... I suppose I don't have a lot of actual Spanish DNA? I am more Sephardic?

    These are my DNA Tribes results...




  10. #7
    Registered Users
    Posts
    20
    Sex

    Quote Originally Posted by shazou View Post
    I think it is because of the Sephardic DNA

    [img]...[/img]
    That is possible.

    Though, why is the Iberian Peninsula so low?

  11. #8
    Banned
    Posts
    494
    Sex
    Ethnicity
    1/2 Ilocano 1/2 Tagalog
    Nationality
    American
    Y-DNA (P)
    C-M130
    mtDNA (M)
    B4a1a

    Philippines
    Quote Originally Posted by Potentia View Post
    That is possible.

    Though, why is the Iberian Peninsula so low?
    What regions of Spain did the Spanish side of your ancestry mostly come from?

  12. #9
    Registered Users
    Posts
    20
    Sex

    Quote Originally Posted by shazou View Post
    What regions of Spain did the Spanish side of your ancestry mostly come from?
    Uh... I'm assuming they were from Andalusia, Extremadura, Castilla La Mancha, and Galicia...

  13. The Following User Says Thank You to Potentia For This Useful Post:

     shazou (09-07-2016)

  14. #10
    Registered Users
    Posts
    981
    Sex
    Location
    Netherlands
    Ethnicity
    Celtiberian
    Nationality
    Spanish
    Y-DNA (P)
    R-Y22889
    mtDNA (M)
    H3-T152C!

    Spain Andalucia Spanish Empire (1506-1701)
    Hi Potentia.

    The iberian genetic landscape is relatively homogeneous compared to other european nations. Basically almost all the native spaniards, regardless their place of origin, tend to have a big proportion of DNA that can be linked to hispanorroman ascendancy, being this a mixture of Celtic, iberian and roman genes (in that order of importance). This mix is mostly what is labeled as "iberian" and probably its celtic and roman components is what makes it to show up in some british people too with surprisingly high values (between an average of 12% up to some people having 27%). With this I mean that you are not going to explain your low iberian component by trying to find differences between spanish regions. It is very high in all of them.

    What you indeed can find are variations on the smaller contributions on the top of that big shared "iberian" component. E.g. A northafrican component averages to 3% in Spain but can oscilate between 1% to 10% between regions (and paradoxically the one with the highest ratio is Galicia in the north while eastern Andalusia, in the south, has the lowest).

    I don't know your ethnical background nor your nationality but your test shows a 30% native american, therefore I'll assume you come from America.

    I won't deny that you could have some far sephardic ascendancy but in any case using it as an explanation for your low percentage on iberian sounds like a very far reach to me if you are expecting a way higher proportion. A close sephardic ancestor would probably have given you a pretty decent amount of "European jewish" and yours looks like just statistical noise (<1%).

    As you probably know, you receive half of your autosomal DNA from your father and half from your mother thus you get 25% from each grandparent and so on.

    If you are sure of having spanish ascendancy and none italian nor greek, it would be interesting to know where do you place it in your genealogy tree and how many contributors they are.

    Keep in mind that the genes are passed randomly to the next generation. If you only had a Spanish grandfather or grandmother, just by chance it could have been perfectly possible that you only received that small 6% from him/her (e.g. he/she passed only 15%-20% of his > 60% iberian to your father/mother and your father/mother only passed a 6% to you) while the italo-greek percentage managed to go all the way down to you and be reinforced with other contributions. It is not probable, but it is possible.
    Last edited by Shadogowah; 09-09-2016 at 04:35 PM.

  15. The Following 2 Users Say Thank You to Shadogowah For This Useful Post:

     Don Felipe (09-09-2016),  lwell (03-08-2017)

Page 1 of 2 12 LastLast

Similar Threads

  1. Replies: 18
    Last Post: 01-06-2021, 06:28 PM
  2. Replies: 24
    Last Post: 02-14-2020, 12:21 PM
  3. What is Italy/Greece?
    By Andrew512 in forum AncestryDNA
    Replies: 3
    Last Post: 09-01-2017, 03:24 AM
  4. Ancestry DNA-Mexican(high Italy/Greece)
    By nreyes124 in forum AncestryDNA
    Replies: 19
    Last Post: 06-17-2017, 11:08 PM
  5. Eurogenes K6 Italy-Greece PCA plot!
    By Sikeliot in forum Open-Source Projects
    Replies: 0
    Last Post: 09-01-2016, 08:20 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
  •