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Thread: Gedmatch Admixture help? Pretty please?

  1. #1
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    Gedmatch Admixture help? Pretty please?

    Hi! I'm new to all this and would be very grateful if you'd be willing to offer a little advice, or perhaps point me toward some good beginner resources. For example, things like single population sharing? Mixed mode population sharing? I am totally, totally lost.

    I have just done Ancestry DNA and uploaded my raw data to Gedmatch. I'd like to use the different Admixture analyzing options, but I'm pretty overwhelmed by those and not sure which are best or most relevant for me.

    I had one Armenian grandparent (whose parents and grandparents were all Armenian) and would particularly like to see more details on that DNA if possible.

    Ethnic background per Ancestry is as follows:
    35% Great Britain
    15% Italy/Greece
    12% Scandinavia
    12% Ireland
    10% Europe West
    9% Caucasus (Armenian)
    2% Middle East
    2% South Asia
    <1% Eastern European
    <1% Finland/Northern Russia
    <1%* Africa North

    Any ideas? I'd appreciate any advice you can offer. Thank you!

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

     A Norfolk L-M20 (11-07-2017)

  3. #2
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    Try out Eurogenes K15. Use Oracle X and post your results here. We can help interpret.

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     Massam (12-30-2015)

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    Apologies. Oracle-4.

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     Kdckaw (12-30-2015)

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    Aha! I was wondering what Oracle x was and was prepared to come back with both just to cover my bases. Here it is:
    Admix Results (sorted):

    #PopulationPercent
    1 North_Sea 30.83
    2 Atlantic 24.64
    3 East_Med 9.69
    4 West_Asian 8.97
    5 Eastern_Euro 8.36
    6 West_Med 7.83
    7 Baltic 7.66

    Finished reading population data. 207 populations found.
    15 components mode.

    --------------------------------

    Least-squares method.

    Using 1 population approximation:
    1 West_German @ 8.031890
    2 South_Dutch @ 8.621003
    3 French @ 10.356162
    4 North_German @ 10.858715
    5 Southeast_English @ 11.784154
    6 Southwest_English @ 12.040234
    7 Danish @ 12.566154
    8 North_Dutch @ 13.084058
    9 Irish @ 13.566222
    10 West_Scottish @ 13.893725
    11 Orcadian @ 14.432596
    12 East_German @ 15.110340
    13 Norwegian @ 15.785502
    14 Austrian @ 16.152248
    15 Swedish @ 16.378958
    16 West_Norwegian @ 17.090178
    17 Hungarian @ 17.122753
    18 Serbian @ 17.361752
    19 North_Swedish @ 17.936119
    20 Spanish_Cataluna @ 18.179588

    Using 2 populations approximation:
    1 50% Orcadian +50% Romanian @ 7.091134


    Using 3 populations approximation:
    1 50% Orcadian +25% Southeast_English +25% Turkish @ 3.531921


    Using 4 populations approximation:
    1 Orcadian + Orcadian + Southeast_English + Turkish @ 3.531921
    2 Orcadian + Orcadian + Turkish + West_Scottish @ 3.535518
    3 Orcadian + Turkish + West_Scottish + West_Scottish @ 3.552374
    4 Orcadian + Southeast_English + Turkish + West_Scottish @ 3.562219
    5 Orcadian + Southeast_English + Turkish + West_Norwegian @ 3.601351
    6 Southeast_English + Turkish + West_Norwegian + West_Scottish @ 3.601725
    7 Danish + Orcadian + Orcadian + Turkish @ 3.626960
    8 Irish + Orcadian + Orcadian + Turkish @ 3.646572
    9 Southeast_English + Southeast_English + Turkish + West_Norwegian @ 3.649708
    10 Danish + Orcadian + Turkish + West_Scottish @ 3.675018
    11 Danish + Orcadian + Southeast_English + Turkish @ 3.711113
    12 Turkish + West_Norwegian + West_Scottish + West_Scottish @ 3.725690
    13 Irish + Orcadian + Turkish + West_Scottish @ 3.726294
    14 Orcadian + Southeast_English + Southeast_English + Turkish @ 3.746894
    15 Orcadian + Orcadian + Orcadian + Turkish @ 3.748425
    16 Orcadian + Turkish + West_Norwegian + West_Scottish @ 3.751097
    17 Irish + Southeast_English + Turkish + West_Norwegian @ 3.751665
    18 North_Dutch + Orcadian + Turkish + West_Scottish @ 3.755022
    19 North_Dutch + Orcadian + Orcadian + Turkish @ 3.774221
    20 Irish + Orcadian + Southeast_English + Turkish @ 3.777479

  8. #5
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    Hello Kdckaw,

    The Armenian ancestry that you have might be showing up as the Turkish admixture in these calculators because the populations of Eastern Turkey and Armenians are pretty close (genetically and historically). You're not getting an exact match either. I have a similar situation with getting 25% of various NE Europe and Baltic populations which probably stands in for one of them but they change from calculator to calculator. I've found it's best to think in geographic terms when interpreting my own calc results.

    Good luck!

    p.s. I have some Armenian ancestry on my father's side too which gives me Anatolian on ftdna's myorigins. If you get Anatolia and or related results that'd be your Armenian side.

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     Kdckaw (12-30-2015),  Massam (12-30-2015)

  10. #6
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    Thank you! That's what I figured. I was pretty sad to see how low my percentage of Caucasus was in my Ancestry results, but in playing with the Gedmatch admixture tests I figured several other things that pop up for me may be part of whatever dna was passed down from my Armenian ancestors.

    Part of my problem is I don't know what I'm looking at. I have no idea how to read those results, so I'm in the dark! I've been looking for something that will teach me how to understand them, but I haven't had any luck yet.

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     psaglav (12-30-2015)

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    Welcome Kdckaw !!

    I'm myself quite a beginner here but waiting for others to give you some advices I take my chance. As you're mostly of european ancestry eurogenes is the best for you to start with. The k15 is very informative for beginners, the first thing you should do is to become familiar with the spreadsheet (take a look at the populations averages) and the maps http://bga101.blogspot.fr/2013/10/eu...-gedmatch.html . This way you'll understand the overall european genetic tendencies.

    The "1 population approximation" gives you the population you match with the most then the 2,3,4 "populations approximation" try to give you more subtle results. If k15 had a South German reference population that would be the first choice of the one population oracle for sure. Which means that with an armenian grandparent you still get a north westerner profile ( Very strong North Sea followed by Atlantic) but a very continental one (higher East Med and West Asian, the two clusters your armenian ancestry makes grow).
    That indicates your other grandparents are probably very typical of the North Sea cluster and would get if tested a very low East Med if none with a quite low Baltic ( you get 7.66, so theirs would be on average around 10). So predominantly of British Iles ancestry. Western Scandinavian admixture is also possible.
    No doubt you will succeed, step by step, to use gedmatch and will enjoy Anthrogenica !

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  14. #8
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    Welcome Kdckaw on the best genetical forum!
    You have obviously a very strong NW-euro ancestrality. If your main topic is your armenian part, I would recommand you to give a try to the recent calculators that have ENF, or EEF admixture (the neolithic farmers who came from the anatolian plateau), and CHG ( Caucasus Hunter Gatherer). Our friend Chad has produced one, with very interesting results: http://www.anthrogenica.com/showthre...G-Test-Results . Imo much more reliable than the old school programs.
    En North alom, de North venom
    En North fum naiz, en North manom

    (Roman de Rou, Wace, 1160-1170)

  15. The Following 4 Users Say Thank You to anglesqueville For This Useful Post:

     A Norfolk L-M20 (11-07-2017),  Kdckaw (12-30-2015),  Massam (12-30-2015),  psaglav (12-30-2015)

  16. #9
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    Quote Originally Posted by Massam View Post
    Welcome Kdckaw !!

    I'm myself quite a beginner here but waiting for others to give you some advices I take my chance. As you're mostly of european ancestry eurogenes is the best for you to start with. The k15 is very informative for beginners, the first thing you should do is to become familiar with the spreadsheet (take a look at the populations averages) and the maps http://bga101.blogspot.fr/2013/10/eu...-gedmatch.html . This way you'll understand the overall european genetic tendencies.

    The "1 population approximation" gives you the population you match with the most then the 2,3,4 "populations approximation" try to give you more subtle results. If k15 had a South German reference population that would be the first choice of the one population oracle for sure. Which means that with an armenian grandparent you still get a north westerner profile ( Very strong North Sea followed by Atlantic) but a very continental one (higher East Med and West Asian, the two clusters your armenian ancestry makes grow).
    That indicates your other grandparents are probably very typical of the North Sea cluster and would get if tested a very low East Med if none with a quite low Baltic ( you get 7.66, so theirs would be on average around 10). So predominantly of British Iles ancestry. Western Scandinavian admixture is also possible.
    No doubt you will succeed, step by step, to use gedmatch and will enjoy Anthrogenica !
    Thank you! Well, the results (and your interpretation of them) seem correct to me! None have been tested, but my grandparents basically break down like this ethnically:

    Maternal Grandmother: English, Scottish, touch of German
    Maternal Grandfather: Norwegian, Welsh, Irish, English

    Paternal Grandmother: Danish, German, Swedish
    Paternal Grandfather: Armenian

    Maternal Grandma has agreed to be tested, and I'm working on Maternal Grandpa. Just have to get the money together. Unfortunately the other two are gone.

    Thanks for the welcome! I will check out that link.

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  18. #10
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    Quote Originally Posted by anglesqueville View Post
    Welcome Kdckaw on the best genetical forum!
    You have obviously a very strong NW-euro ancestrality. If your main topic is your armenian part, I would recommand you to give a try to the recent calculators that have ENF, or EEF admixture (the neolithic farmers who came from the anatolian plateau), and CHG ( Caucasus Hunter Gatherer). Our friend Chad has produced one, with very interesting results: http://www.anthrogenica.com/showthre...G-Test-Results . Imo much more reliable than the old school programs.
    Thank you! I checked it out and it looks really interesting! Unfortunately I still don't understand most of it, but I bookmarked it so I can go back when it all starts to make sense to me.

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