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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.Quote:
Originally Posted by Grace O'Malley
My best attempt so far, can’t seem to get those standard errors down
Attachment 143041 Norway Medieval is French
Attachment 143042
Attachment 143043
Attachment 143044
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.
Attachment 143054
References:
Attachment 143055
Attachment 143056
Attachment 143057
Some of my recent random results using modern populations as a reference
https://i.postimg.cc/sXskpy4n/image.png
https://i.postimg.cc/Z0tFdYrn/image.png
https://i.postimg.cc/3xZVYzTm/image.png
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."
Attachment 143284
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%
Attachment 143285
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
Attachment 143286
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
Attachment 143287
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%
Here are some more models:
Attachment 143423
Target: Gannicus_MergedFile_officialDavidski_scaled
Distance: 0.0407% / 0.04067256
81.0 Wales_MIA_LIA
19.0 Italy_Imperial.SG
Attachment 143424
Target: Gannicus_MergedFile_officialDavidski_scaled
Distance: 0.0350% / 0.03498707
64.9 Wales_MIA_LIA
35.1 Italy_IA_Republic.SG
Attachment 143425
Target: Gannicus_MergedFile_officialDavidski_scaled
Distance: 0.0353% / 0.03532272
88.3 Ireland_EBA.SG
11.7 Egyptian_LateKingdomPeriod_JK2134_JK2911_avg
Attachment 143426
Target: Gannicus_MergedFile_officialDavidski_scaled
Distance: 0.0296% / 0.02958242
82.8 Ireland_EBA.SG
17.2 Greece_Koufonisi_Cycladic_EBA.SG
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.
https://i.postimg.cc/TwF5xddL/image.png
my recent models:
https://i.postimg.cc/4yvc1CGY/image.png
https://i.postimg.cc/HL4CHBTQ/image.png
https://i.postimg.cc/TwYBxx76/image.png
https://i.postimg.cc/1RLPGg7V/image.png
https://i.postimg.cc/VLdr6brS/image.png
GermanyEarlyMedieval.SG sample admixture model:
https://i.postimg.cc/288ytLFc/image.png
Has anyone tried modeling themselves yet as 100% of one source?
I can model myself as 100% Iron Age Central Gaul from Yonne:
Attachment 143484
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
Attachment 143491
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Attachment 143496
Did another one population source model with France_HautsDeFrance_IA2.SG:
Attachment 143548