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Thread: Genomelink Global Ancestry

  1. #11
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    Humm :\ what is this?!


    0% Austronesian
    0% Native Peoples of Andes
    0% Artic
    0% Southeast Asia
    0% Native Peoples of North America
    0% African Hunter Gatherer
    0% West Asian
    0% Balkan
    0% Native Peoples of Amazon and Caribbean
    0% Scandinavian
    0% Oceanian
    Last edited by Hurricane; 06-05-2021 at 10:58 AM.
    Regions of Ancestry
    West Africa - East Africa - North Africa - Middle East - Southern Europe - South Asia - SEA & Oceania

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  3. #12
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    This is the worst test I've ever payed for.

    thefuckisthis.jpg

    1% Scandinavian as a Norwegian with mostly Norwegian, Swedish, Finnish and German ancestry. Finland wasn't even on the global map... B.S.

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  5. #13
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    Quote Originally Posted by Helgagrim View Post
    This is the worst test I've ever payed for.

    thefuckisthis.jpg

    1% Scandinavian as a Norwegian with mostly Norwegian, Swedish, Finnish and German ancestry. Finland wasn't even on the global map... B.S.
    This is confirming what I suspect from reading the information. Probably this is ancient migrations, depending on what it sees Scandinavian might be tied up in the NW European and Eastern (the orange map overlaps Finland). The fact that everyone gets some Dravidian, some Near East, some Italian and even some East Asian is more of the shared European history than what your recent heritage and genealogy is in reality.

    I have some Scandinavian and had nothing on this test. I have some more recent Portuguese and a lot of older Spanish and celt type Iberian and depending on the company and methods I get trace or zero Iberian up to 22 or so percent. This test gave me around 20%. Same on Eastern European, I have a little in genealogy, but on tests it is trace or zero up to 10 or 15%, it might show Russian, or Georgian, Caucasian, etc.

    I was interested in seeing their chromosome break down compared to 23andme, but this one puts the same ethnicities in order left to right (L) East Asian, Dravidian, Italian, Iberian, Eastern, NW Euro, African, Near East(R) regardless of where on the chromosome it actually resides, then 23andme places it where it occurs and will break pieces along the chromosome painter. I can tell it is same as far as Dad on top and mom bottom of the chromosome view due to some of the results since I had my dad tested on 23andme they were able to sort it that way and this appears to read it as person 1 and 2 in the correct order at least.

    Too expensive (if it were $15 I wouldn't complain and might run other family), not accurate for recent ancestry, has pretty looking graphics with general information. All the tests on genomelink a bit too pricey and same sort of issues, too general, etc.

  6. #14
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    Quote Originally Posted by AureliusDNA View Post
    Attachment 44882

    So I'm literally more of everything but not West Asian? Ridiculous.
    Weird.

  7. #15
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    Quote Originally Posted by Helgagrim View Post
    This is the worst test I've ever payed for.

    thefuckisthis.jpg

    1% Scandinavian as a Norwegian with mostly Norwegian, Swedish, Finnish and German ancestry. Finland wasn't even on the global map... B.S.
    Not very good indeed.

  8. #16
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    Quote Originally Posted by michal3141 View Post
    I think this is another report made based on an ADMIXTURE calc.
    According to genomelink.io it isn't based on ADMIXTURE. Instead, they clearly claim it is based on XGMix, a method developped by Arvind Kumar, Carlos Bustamante and Alexander Ioannidis from Stanford and Daniel Mas Montserrat from Purdue University. XGMix is based on Stacked XGBoost. They describe it in this paper here: https://www.biorxiv.org/content/10.1...04.21.053876v1
    In this paper they show that this method is the new state-of-the-art for local-ancestry inference.

    This is what actually has convinced me to buy a report.

    However, what is strange: In the report, they don't map the different ancestries on the chromosome, as Marciadietrich has already remarked. But if they really obtained these results using XGMix they could have easily done it, because this is what XGMix does. Why the heck didn't they? XGMix is easy to use on laptops, so I can't see why they should have lied.

  9. #17
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    This is what I received:

    Attachment 45108

    Attachment 45107

    While my genealogically known ancestry is 34.375% Southwest German, 25% East Prussian German, 25% North Italian, 9.375% German Swiss and 6.25% Alsatian.

    I can easily dismiss the 1-2% stuff as noise. The rest seemed to make sense to me.

    For comparison, this is what I obtain inserting my Global25 coords as target on Vahaduo, using the entire list of ancient pop averages as a source, and limiting the output to 5 populations:

    34.0% FRA_Hauts_de_France_IA2
    31.8% VK2020_SWE_Oland_IA
    13.2% UKR_Srubnaya_MLBA
    11.0% Levant_Yehud_IBA
    10.0% ITA_Bell_Beaker_o

    Seems quite similar, if we consider that the Gaulish Celts are genetically somewhere between Northwestern and Southwestern Europe.

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  11. #18
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    Well, what do you folks think? Are they bloody liars, using ADMIXTURE while claiming to be using the new and exciting XGMix? Or did they honestly want to use XGMix, but then realised that it doesn't perform well on an intra-continental scale, so they silently resorted to good old ADMIXTURE? (According to the paper by Arvind Kumar et al. their algorithm performed pretty bad on an intra-Asian level, if pre-set ancestries are used, instead of geographical coordinates; they achieved an accuracy of only 15%.) Or are they really using XGMix, but foolishly discard the valuable ancestry mapping information provided by this program, invariantly plotting the different ancestries always in the same order on the chromosomes?

  12. #19
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    Here is my result...honestly i prefer the gedmatch calculators and nmonte runs!....i am not sure about this" dravidian " ethnicity, researchers have long since discarded such obsolete terms!....wonder what reference populations were used?

    screencapture-genomelink-io-reports-global-ancestry-result-2021-07-27-08_57_50.png

  13. #20
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    Screenshot_20210525-083505_Chrome.jpgScreenshot_20210525-083513_Chrome.jpg

    There's mine. Looks like an overlapping noise fest.
    Ancestry on paper: British, Irish, French, Swiss, German, Spanish/Portuguese, African, Native American

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