Mega QAPDM Models thread

[Gannicus]

First model didn't work but 2nd one did.





I no doubt have real ancestry from Kilteasheen as my father has long term ancestry from close to where these genomes were buried and is R1b-M222. I just can't find the right model for them.

On MyHeritage Ancient Origins I'm closest to Kilteasheen KIL001.

My No 1 two way fit on Illustrative dna is below.



My No 2 is with the Pict and No 3 with Kilteasheen.

That's something you can do. You can try to replicate the two-way models you see on the Deep Ancestry section of IllustrativeDNA. With those references like I mentioned, you may have to remove some references or substitute a related group.

[Xavier727]

My best attempt so far, can’t seem to get those standard errors down

Norway Medieval is French

[Gannicus]

I did another Steppe/ANF/WHG model of myself. The goal here was to maximize p-value and tighten up the standard errors as much as possible.



References:

[Fistora]

Some of my recent random results using modern populations as a reference

[Gannicus]

I did a number of models with this IA British individual 6DT3. I looked up what studies have been done on him, and it appears that he has about 25% Iron Age Scandinavian ancestry:

https://www.nature.com/articles/s41586-024-08275-2?utm

"Twigstats substantially improves models of admixture between ancestries from Iron Age Britain and northern Europe in early medieval England9, halving standard errors from 9% with SNPs to 4% when using time stratification (point estimates 80% and 79% Iron Age Britain-related ancestry, respectively). We used this improved resolution to demonstrate that an earlier Roman individual (6DT3) dating to approximately second to fourth century ce from the purported gladiator or military cemetery at Driffield Terrace in York (Roman Eboracum), England60, who was previously identified as an ancestry outlier61,62, specifically carried approximately 25% EIA Scandinavian Peninsula-related ancestry (Fig. 2c). This documents that people with Scandinavian-related ancestry already were in Britain before the fifth century ce, after which there was a substantial influx associated with Anglo-Saxon migrations9. Although it is uncertain whether this individual was a gladiator or soldier, individuals and groups from northern Europe are indeed recorded in Roman sources both as soldiers and as enslaved gladiators63,64."




Target: Gannicus_MergedFile_officialDavidski_scaled
Distance: 0.0393% / 0.03932320 | R2P
79.8 England_IA_Roman:6DT3__AD_200__Cov_73.36%
20.2 Greece_Kastrouli_IA:I17962__BC_644__Cov_41.00%



Target: Gannicus_MergedFile_officialDavidski_scaled
Distance: 0.0455% / 0.04545825 | R2P
89.0 England_IA_Roman:6DT3__AD_200__Cov_73.36%
11.0 Egyptian_LateKingdomPeriod_JK2134_JK2911_avg



Target: Gannicus_MergedFile_officialDavidski_scaled
Distance: 0.0453% / 0.04526365
83.2 England_IA_Roman:6DT3__AD_200__Cov_73.36%
16.8 Italy_Imperial.SG



Target: Gannicus_MergedFile_officialDavidski_scaled
Distance: 0.0482% / 0.04815272
87.5 England_IA_Roman:6DT3__AD_200__Cov_73.36%
12.5 Italy_Pompeii_Roman:f1R__AD_79__Cov_33.78%

[Gannicus]

Here are some more models:



Target: Gannicus_MergedFile_officialDavidski_scaled
Distance: 0.0407% / 0.04067256
81.0 Wales_MIA_LIA
19.0 Italy_Imperial.SG



Target: Gannicus_MergedFile_officialDavidski_scaled
Distance: 0.0350% / 0.03498707
64.9 Wales_MIA_LIA
35.1 Italy_IA_Republic.SG



Target: Gannicus_MergedFile_officialDavidski_scaled
Distance: 0.0353% / 0.03532272
88.3 Ireland_EBA.SG
11.7 Egyptian_LateKingdomPeriod_JK2134_JK2911_avg



Target: Gannicus_MergedFile_officialDavidski_scaled
Distance: 0.0296% / 0.02958242
82.8 Ireland_EBA.SG
17.2 Greece_Koufonisi_Cycladic_EBA.SG

[Fistora]

Comparison of me and Ukrainian.HO samples
I am aware of the negative p-value, but this is meant to illustrate the difference in drifts. It is clearly visible how the Ukrainian sample is heading southeast while I am heading west. Unless I did something wrong? I would also like to finally improve my margins, as this problem only arises when modeling my kit.



my recent models:







GermanyEarlyMedieval.SG sample admixture model:

[Gannicus]

Has anyone tried modeling themselves yet as 100% of one source?

I can model myself as 100% Iron Age Central Gaul from Yonne:

[AndreiDNA]

Models I've made using admixtools 2 (the faster but less accurate version of admixtools 1 that i usually use)
Rights:
Mbuti.DG,Russia_UstIshim_IUP.DG,Georgia_Dzudzuana_ UP.SG,Russia_Sidelkino_HG.SG,Israel_Natufian.AG,Ru ssia_MA1_UP.SG,Switzerland_Bichon_Epipaleolithic.S G,Russia_DevilsCave_N.SG
lefts:
Estonia_IA.SG,Ukrainian.HO,Kazakhstan_Sarmatian_Tu rk_IA.AG

[Gannicus]

Did another one population source model with France_HautsDeFrance_IA2.SG: