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View Full Version : Significantly higher Iberian than Italian on Gedmatch than on Ancestry



Claudio
06-10-2017, 09:49 AM
i score 36% Italian/Greek and 0% Iberian with AncestryDNA yet with Gedmatch I seem to come up with almost twice as much Iberian than Italian?
Anyone else of Italian decent having similar results when comparing Gedmatch to there AncestryDNA results in this department?

sweuro
06-10-2017, 11:08 AM
Can you post your gedmatch results to see ?

Claudio
06-10-2017, 11:23 AM
Can you post your gedmatch results to see ?

Kit number A359314

sweuro
06-10-2017, 12:50 PM
Kit number A359314
Looks like you are northern-italian (which region ?). Well, some northern-italians are genetically close to iberians, seems normal. On AncestryDNA the iberian component is more basque-related, that's why it doesn't appear in italians. But spaniards do get some of the italy/greece component.

Pratt
06-10-2017, 01:01 PM
Looks like you are northern-italian (which region ?). Well, some northern-italians are genetically close to iberians, seems normal. On AncestryDNA the iberian component is more basque-related, that's why it doesn't appear in italians. But spaniards do get some of the italy/greece component.

True that some northern Italians are genetically close to Iberians, especially northern-western Italians, but it's quite obvious that he is mixed, in some calculators he comes up as French. He claimed to be half Italian (more like a central-southern rather than a central one), half British with minor Jewish ancestry in his British side.

Claudio
06-10-2017, 02:18 PM
Replying to both Sweuro and Pratt above.
Thanks again for taking the time to check my data and voice your opinions.
It's appreciated.
I am indeed only half Italian.
Father from Lanuvio in Lazio region 20km outside Rome.
Mother from Essex in England and before that East London from a predominantly British family with a Jewish great great grandfather.
Genetically she is only 22%British and a further 53%West European 10%European Jewish 8%Iberian..etc..
I imagine like 'sweuro' says that much of the Spanish content is probably a typical component that factors in amongst Italians when measuring for the Italian/Greek ethnicity on AncestryDNA. Also 'Pratt' it would seem that my mothers 10% European Jewish is in fact of the "Sephardi Jewish" variety originating from Spain lol and I guess this would account for her 8% iberian in her ancestry results which in turn by me inheriting 6% of her Sephardi Jewish would probably influence my Iberian percentages somewhat on Gedmatch if not AncestryDNA.

Claudio
06-17-2017, 09:46 PM
I was incorrect.. tested for separdic on FTDNA.. came up Negative. lol

Flavio
06-26-2017, 06:18 PM
True that some northern Italians are genetically close to Iberians, especially northern-western Italians, but it's quite obvious that he is mixed, in some calculators he comes up as French. He claimed to be half Italian (more like a central-southern rather than a central one), half British with minor Jewish ancestry in his British side.

Hi Pratt, I would ask you a pleasure, I know that with these values ​​can be included in the PCA genetic map of MDLP K16 Modern 4-Ancestors Oracle, you can confirm that this could be my position? Thank you very much.

Admix Results (sorted):

# Population Percent
1 Caucasian 34.66
2 Neolithic 30.78
3 Steppe 14.71
4 NorthEastEuropean 14.14
5 NearEast 2.82
6 NorthAfrican 2.71


Finished reading population data. 516 populations found.
16 components mode.

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

Least-squares method.

Using 1 population approximation:
1 Italian @ 3.678105
2 Kosovar @ 4.097620
3 Greek @ 4.319194
4 Albanian @ 4.366970
5 Greek @ 5.255222
6 Italian @ 6.573229
7 Greek @ 6.905533
8 Italian @ 7.179266
9 Gagauz @ 7.996182
10 Corsican @ 8.058810
11 Bulgarian @ 8.507692
12 Macedonian @ 8.510908
13 Italian @ 8.858373
14 Sicilian @ 8.910179
15 Bulgarian @ 9.263039
16 Italian @ 9.275011
17 Romanian @ 9.527539
18 Italian @ 9.644293
19 Greek @ 9.724138
20 Romanian @ 9.948600

Using 2 populations approximation:
1 50% Greek +50% Italian @ 2.305079


Using 3 populations approximation:
1 50% Greek +25% Italian +25% Italian @ 2.305079


Using 4 populations approximation:
++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++++++++++++++++++++++++ +
1 Albanian + Greek + Italian + Italian @ 2.073468
2 Greek + Greek + Italian + Italian @ 2.100834
3 Albanian + Greek + Italian + Italian @ 2.194211
4 Bulgarian + Hungarian + Sardinian + Turk @ 2.199026
5 Greek + Greek + Italian + Italian @ 2.204292
6 Greek + Italian + Italian + Kosovar @ 2.243780
7 Hungarian + Macedonian + Sardinian + Turk @ 2.254127
8 Albanian + Greek + Italian + Italian @ 2.256859
9 Greek + Greek + Italian + Italian @ 2.285656
10 Greek + Greek + Italian + Italian @ 2.296139
11 Italian + Spanish + Spanish + Turk @ 2.303376
12 Greek + Greek + Italian + Italian @ 2.305079
13 Albanian + Greek + Italian + Italian @ 2.314320
14 Greek + Greek + Italian + Italian @ 2.329039
15 Greek + Norwegian + Sardinian + Turk @ 2.331429
16 Greek + Greek + Italian + Italian @ 2.338335
17 Albanian + Albanian + Italian + Italian @ 2.339221
18 Greek + Italian + Italian + Kosovar @ 2.346031
19 Italian + Italian + Spanish + Turk @ 2.346224
20 Greek + Icelandic + Sardinian + Turk @ 2.353307

17213

Nino90
05-14-2018, 10:10 AM
I can confirm that North Italians sometime show up Spanish. Happens for me most of the times.

Archimedes
05-14-2018, 01:49 PM
I think Nino wants my kit to be analyzed.Just a little background. My mother is 100% British/Irish or close to it, and I grew up knowing only her family. My father was, supposedly, either fully or half Italian. I tested with 23and me and my results came back 0% Italian. They actually show 0% Southern European. I'm not sure I can post links or images yet, but will do so, if it's possible.

WH9185468