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Thread: Different gedmatch results for 23andme kit VS Ancestrydna kit

  1. #1
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    Different gedmatch results for 23andme kit VS Ancestrydna kit

    Apologies if this is in the wrong section,

    I recently got my AncestryDna results in, and I loaded them into Gedmatch for fun. I was surprised to see that the Ancestry kit was getting different results from the 23andme one. I have access to some other folks Gedmatch kit numbers, and I ran one of them through to find that the results were coming out consistently for them (they scored the same top ethnicities using eurogenes k13 and k15v2 to be specific). Just for the sake of accuracy:

    Ancestry kit v2k15:

    1 Atlantic 31.41
    2 North_Sea 30.25
    3 Baltic 12.96
    4 West_Med 9.35
    5 Eastern_Euro 6.51
    6 West_Asian 4.61
    7 Amerindian 2.19
    8 Siberian 1.08
    9 Southeast_Asian 0.79
    10 Red_Sea 0.44
    11 Oceanian 0.4

    1 Southeast_English 6.68

    # Primary Population (source) Secondary Population (source) Distance
    1 81% North_German + 19% French_Basque @ 4.18

    23andme kit v2k15:

    # Population Percent
    1 Atlantic 32.46
    2 North_Sea 30.18
    3 Baltic 13.1
    4 West_Med 9.24
    5 Eastern_Euro 6
    6 West_Asian 4.27
    7 Amerindian 2.22
    8 Siberian 1.06
    9 Southeast_Asian 0.83
    10 Oceanian 0.35
    11 Red_Sea 0.3

    1 Irish 6.96

    1 79.1% North_German + 20.9% French_Basque @ 4.58

    So, obviously the results are pretty similar between the two kits, but they're different enough to be significant. I didn't think much of this until I ran these two tests from someone else and found that the differences were much, much smaller. Instead of there being a difference in Atlantic by one point as seen on mine, his had a difference of about .1 tops, and his ethnicity predictors scored identically through any test i put them through. (it's like they were the same results!)

    So I'm asking you guys with multiple kits: What is the margin of difference between your kits on Gedmatch? Is mine standard or do you think this indicates one of these kits is off?

    Thank you for your help with this.

  2. #2
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    My Ancestry results had more admixture than 23andme. I've attached the K13 below. Not really compared them too much but at first glance they look fairly similar.

    L-R Ancestry, 23andme
    Attached Images Attached Images
    Known ancestry: English (mostly S/SE England) + Irish (Cork)

  3. The Following User Says Thank You to L1983 For This Useful Post:

     sktibo (09-15-2016)

  4. #3
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    Thank you L1983, I appreciate you sharing this here.

  5. The Following User Says Thank You to sktibo For This Useful Post:

     L1983 (09-15-2016)

  6. #4
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    Quote Originally Posted by sktibo View Post
    Apologies if this is in the wrong section,

    I recently got my AncestryDna results in, and I loaded them into Gedmatch for fun. I was surprised to see that the Ancestry kit was getting different results from the 23andme one. I have access to some other folks Gedmatch kit numbers, and I ran one of them through to find that the results were coming out consistently for them (they scored the same top ethnicities using eurogenes k13 and k15v2 to be specific). Just for the sake of accuracy:

    Ancestry kit v2k15:

    1 Atlantic 31.41
    2 North_Sea 30.25
    3 Baltic 12.96
    4 West_Med 9.35
    5 Eastern_Euro 6.51
    6 West_Asian 4.61
    7 Amerindian 2.19
    8 Siberian 1.08
    9 Southeast_Asian 0.79
    10 Red_Sea 0.44
    11 Oceanian 0.4

    1 Southeast_English 6.68

    # Primary Population (source) Secondary Population (source) Distance
    1 81% North_German + 19% French_Basque @ 4.18

    23andme kit v2k15:

    # Population Percent
    1 Atlantic 32.46
    2 North_Sea 30.18
    3 Baltic 13.1
    4 West_Med 9.24
    5 Eastern_Euro 6
    6 West_Asian 4.27
    7 Amerindian 2.22
    8 Siberian 1.06
    9 Southeast_Asian 0.83
    10 Oceanian 0.35
    11 Red_Sea 0.3

    1 Irish 6.96

    1 79.1% North_German + 20.9% French_Basque @ 4.58

    So, obviously the results are pretty similar between the two kits, but they're different enough to be significant. I didn't think much of this until I ran these two tests from someone else and found that the differences were much, much smaller. Instead of there being a difference in Atlantic by one point as seen on mine, his had a difference of about .1 tops, and his ethnicity predictors scored identically through any test i put them through. (it's like they were the same results!)

    So I'm asking you guys with multiple kits: What is the margin of difference between your kits on Gedmatch? Is mine standard or do you think this indicates one of these kits is off?

    Thank you for your help with this.
    All northwesterners get definitely very close results with these calcs ( which imo remain the best ones for them). For example, my mom ( normand ) gets with v2k15:

    1 Southeast_English 5.82

    1 81.7% Danish + 18.3% French_Basque @ 4.18
    2 84.4% North_German + 15.6% French_Basque @ 4.81
    En North alom, de North venom
    En North fum naiz, en North manom

    (Roman de Rou, Wace, 1160-1170)

  7. #5
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    I think my results are similar between 23andme and Ancestry on gedmatch.

    23andme:
    # Population Percent
    1 North_Sea 26.32
    2 Atlantic 23.93
    3 Eastern_Euro 8.87
    4 Southeast_Asian 8.63
    5 Sub-Saharan 7.96
    6 West_Med 6.81
    7 Baltic 5.62
    8 West_Asian 4.49
    9 South_Asian 3.79
    10 Siberian 1.88

    1 Orcadian + Southeast_English + Southwest_English + Uygur @ 9.936114
    2 Orcadian + Southwest_English + Southwest_English + Uygur @ 9.943084

    Ancestry:
    # Population Percent
    1 North_Sea 27.16
    2 Atlantic 24.15
    3 Southeast_Asian 8.98
    4 Eastern_Euro 8.96
    5 Sub-Saharan 8.08
    6 West_Med 6.48
    7 Baltic 6.05
    8 West_Asian 4.31
    9 South_Asian 3.84
    10 Siberian 1.99

    1 Orcadian + Southwest_English + Uygur + West_Scottish @ 9.959098
    2 Orcadian + Southeast_English + Southwest_English + Uygur @ 9.975924
    Ethnogene: 51.4% NW European, 21.6% W European, 10.1% Southeastern African, 9.5% Southeast Asian, 4.4% South Asian, 2% Scandinavian, 1% East African
    Papertrail @ 2xggrandparents: 37.5% London, 25% Dorset, 25% Mauritius, 6.25% Netherlands, 6.25% Hampshire

  8. #6
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    Quote Originally Posted by sktibo View Post
    So I'm asking you guys with multiple kits: What is the margin of difference between your kits on Gedmatch? Is mine standard or do you think this indicates one of these kits is off?

    Thank you for your help with this.
    It depends. Is your AncestryDNA kit an old one or the new one introduced earlier this year? Do you have the 23andMe kit with the V2, V3, and V4 chipsets?

    The new AncestryDNA kit and the 23andMe chipset use far fewer SNP's for genealogical purposes than the V3, original AncestryDNA, or Family Finder.

    Personally I would not choose anything but the FF kits these days. The original AncestryDNA, FF, and 23andMe V3 kits I expect would give similar results.

    Jack Wyatt

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    Quote Originally Posted by C J Wyatt III View Post
    It depends. Is your AncestryDNA kit an old one or the new one introduced earlier this year? Do you have the 23andMe kit with the V2, V3, and V4 chipsets?

    The new AncestryDNA kit and the 23andMe chipset use far fewer SNP's for genealogical purposes than the V3, original AncestryDNA, or Family Finder.

    Personally I would not choose anything but the FF kits these days. The original AncestryDNA, FF, and 23andMe V3 kits I expect would give similar results.

    Jack Wyatt
    Hi Jack,
    Thank you for informing me of this. My 23andme kit was one i ordered several years ago, but my ancestry kit is brand new. I have an ftdna account but it's data I transferred from the 23andme.. do you think it would be worthwhile uploading that to gedmatch and giving it a go?

  10. #8
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    Quote Originally Posted by sktibo View Post
    Hi Jack,
    Thank you for informing me of this. My 23andme kit was one i ordered several years ago, but my ancestry kit is brand new. I have an ftdna account but it's data I transferred from the 23andme.. do you think it would be worthwhile uploading that to gedmatch and giving it a go?
    You are welcome,

    Your 23andMe kit probably is V3. FTDNA now does not accept transfer of 23andMe V4 kits. I would go ahead and upload it and see how it compares, though you might want to mark one kit private to keep from having your similar kits show up on other's 'one-to-many' results.

    Jack

  11. #9
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    Quote Originally Posted by C J Wyatt III View Post
    You are welcome,

    Your 23andMe kit probably is V3. FTDNA now does not accept transfer of 23andMe V4 kits. I would go ahead and upload it and see how it compares, though you might want to mark one kit private to keep from having your similar kits show up on other's 'one-to-many' results.

    Jack
    I believe my 23andme is V3. Just to be sure I'm understanding you correctly, do you think my 23andme kit results are more accurate than the Ancestry ones on gedmatch?
    Thanks again

  12. #10
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    Quote Originally Posted by sktibo View Post
    I believe my 23andme is V3. Just to be sure I'm understanding you correctly, do you think my 23andme kit results are more accurate than the Ancestry ones on gedmatch?
    Thanks again
    Both the new AncestryDNA and the 23andMe V4 kits have a reduced number of SNP's used for genealogical purposes. Comparing with FF and the equivalents, they still will find the bigger matching segments, but they miss a lot of shorter segments. With the methodology that I use, missing the short segments is a disaster for me. I haven't tried a new AncestryDNA with a 23andMe V4, but I would not put too much faith in that combination.

    Jack
    Last edited by C J Wyatt III; 09-16-2016 at 12:45 AM. Reason: left out word

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