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Monday, March 12, 2018

Exotic female migrants in Early Medieval Bavaria (Veeramah et al. 2018)


PNAS has a new open access paper on the genomics of Early Medieval Bavarians, with a special focus on women with artificial skull deformation [LINK]. The data also include two very interesting Medieval samples from Crimea and Serbia, associated with the East Germanic Ostrogoths and Gepids, respectively. Both show significant Asian admixture. I'll try to get my hands on the dataset ASAP. Here's the abstract and a couple of quotes from the paper. Emphasis is mine:

Modern European genetic structure demonstrates strong correlations with geography, while genetic analysis of prehistoric humans has indicated at least two major waves of immigration from outside the continent during periods of cultural change. However, population-level genome data that could shed light on the demographic processes occurring during the intervening periods have been absent. Therefore, we generated genomic data from 41 individuals dating mostly to the late 5th/early 6th century AD from present-day Bavaria in southern Germany, including 11 whole genomes (mean depth 5.56×). In addition we developed a capture array to sequence neutral regions spanning a total of 5 Mb and 486 functional polymorphic sites to high depth (mean 72×) in all individuals. Our data indicate that while men generally had ancestry that closely resembles modern northern and central Europeans, women exhibit a very high genetic heterogeneity; this includes signals of genetic ancestry ranging from western Europe to East Asia. Particularly striking are women with artificial skull deformations; the analysis of their collective genetic ancestry suggests an origin in southeastern Europe. In addition, functional variants indicate that they also differed in visible characteristics. This example of female-biased migration indicates that complex demographic processes during the Early Medieval period may have contributed in an unexpected way to shape the modern European genetic landscape. Examination of the panel of functional loci also revealed that many alleles associated with recent positive selection were already at modern-like frequencies in European populations ∼1,500 years ago.

...

A much more diverse ancestry was observed among the females with elongated skulls, as demonstrated by a significantly greater group-based FIS (SI Appendix, Fig. S35). All these females had varying amounts of genetic ancestry found today predominantly in southern European countries [as seen by the varying amounts of ancestry inferred by model-based clustering that is representative of a sample from modern Tuscany, Italy (TSI), Fig. 3], and while the majority of samples were found to be closest to modern southeastern Europeans (Bulgaria and Romania, Fig. 4C), at least one individual, AED_1108, appeared to possess ∼20% East Asian ancestry (Fig. 3), which was also evident from the high number of haplotypes within the 5-Mb neutralome that were private to modern East Asian 1000 Genomes individuals (EAS), while also demonstrating an overall ancestry profile consistent with Central Asian populations (SI Appendix, Fig. S33). No modern European individual from the Simons Genome Diversity Panel (SGDP) (11) showed any evidence of significant East Asian ancestry except one Hungarian individual with less than 5%. A higher amount of East Asian ancestry was inferred for AED_1108 than all modern Caucasus and Middle Eastern individuals, and 28 of 33 South Asian individuals.

...

A diverse ancestry was also inferred for the two non-Bavarian samples with elongated heads. KER_1 from Ukraine possessed significant southern European ancestry as well as South Asian ancestry, with an overall profile that best matched modern Turkish individuals. The Gepid VIM_2 from Serbia demonstrated a similar Central Asian-like genetic profile to the Medieval Bavarian AED_1108 with an even larger East Asian component and number of private haplotypes but with less southern European/Middle Eastern ancestry (SI Appendix, Figs. S31 and S33).


Veeramah et al., Population genomic analysis of elongated skulls reveals extensive female-biased immigration in Early Medieval Bavaria, PNAS 2018; published ahead of print March 12, 2018, https://doi.org/10.1073/pnas.1719880115

See also...

First real foray into Migration Period Europe: the Gepid, Roman, Ostrogoth and others...

49 comments:

Davidski said...

So the first East Germanics to be sampled cluster with Turks and Kazakhs. Who would've thunk it?

Rob said...

Hunnic admixed women or just Hun brides

Anonymous said...

With all of the migrations, regroupings, and assimilation, it wouldn't surprise me that some Hunnic, Avar, or other Easter-Nomad women were taken as brides, especially if their husbands wanted to claim some of their heritage.

I remember reading that the main language of the Huns was actually Gothic, which seems to have been spoken by all their tribal groups.

Anonymous said...

Alano-Sarmatian women.

Davidski said...

Those samples, KER_1 (Ostrogothic) and VIM_2 (Gepid), don't resemble Sarmatians. They're more southern and their Asian admixture is higher and different.

Samuel Andrews said...

Sample FN_2 is a ROman solider dating 300 AD. His DNA should be interesting. Should be first insight into ancient Romans & Central Italians at that time.

"Based on an analysis of patterns of haplotype sharing, the Roman soldier (FN_2: 11.08×) was found to have substantially more southern European, West Asian, and Middle Eastern ancestry than two normal-skulled Early Medieval Bavarians with high genomic coverage"

Matt said...

PR_4 and PR_10 very precise matches to Tajikistan with high probability (p70, S31).

Most likely populations Table S35 ("A population assignment analysis (PAA) at the level of individual modern nation states") gives:

(Sample, Pop, Probability)

VIM_2 (Gepid, Serbia) - NOG (Nogai) - 0.94
PR_10 (Sarmartian) - TAJ (Tajik) - 0.96
PR_4 (Sarmartian) - TAJ (Tajik) 0.8
FN_2 (Roman Soldier, Munich ) - ITN (Italian) - 0.38
KER_1 (Crimean Goth, Ukraine) - TUS (Tuscan) - 0.29

(Nogai and Tuscany aren't exactly "nation states" but I'm struggling with what else the acronym could be).

The Nogai esque Gepid makes sense - "Hun brides" I guess, as Rob says.
KER_1 looks more like a North Caucasian than Turkish or Tuscan in the PCA (S13 / S14 / S17). S17 which has a certain kind of West Eurasian zoom places him parallel to Adygei and Chechens, but somewhat more removed to the "West" - the probability above pretty weak for the sample, which might come from being a more unusual mixture relative to present? Some kind of North Caucasus ancestry? Does it seem likely Crimea was dominated by North Caucasus types at this time in history?

It seems obvious that, at least by the time of these samples, the East Germanic groups had well practiced exogamy outside their group, and as traveling males who didn't move with females and joined confederacies of fairly diverse groups that might be exactly as expected?

The Roman soldier looks "west" beyond the limits of present day Spaniards as well, on those PCAs, which is an odd one. Perhaps there was a bit more homogenisation from the Roman Era than we thought? (Or I'm going a bit further on noisy data than I should ;) ).

Walter Lutsyk said...

The greatest surprise: no Slavic wives.

Rob said...

Good summary Matt. As the story goes - the Gepids were inheritors of the Hun empire. So as Attila's sons were being beheaded or (?) fleeing back east, the Gepids might have married into the Hun nobiliatas as a means of legitimizing a link to the Past.

W.r.t. the Roman soldier, it would be more interesting for them to sample the limitanei from late 4th century from the very same Bavarian forts - as they would already have Germanic admixture in them, guessing from arcaheology, but might be a different kind of "Germanic' (Gothic-Gepid) than the proto-Bavarian males (middle Elbe , Thuringian). Lastly, the Roman solider might be more western than current west Europeans because of possible appreciable Germanic admixture in modern Spaniards and French. Ergo this is probably our first window into the impact of migration period on the West.

Open Genomes said...

What, no Y chromosome data for the males?
Did they not sequence it for WGSs, or is this being reserved for another study?

On a separate topic:
David, will you analyze the Lengyel samples from the Polish Neolithic Genomes Project?
https://www.ebi.ac.uk/ena/data/view/PRJNA318237

Davidski said...

@Samuel Andrews

Quit provoking Rob. Enough already with the same discussions over and over.

@Open Genomes

David, will you analyze the Lengyel samples from the Polish Neolithic Genomes Project?

Only when the genotype data become available. These samples are probably a lot like GAC anyways.

Chad Rohlfsen said...

Sie Germans..

Anthro Survey said...

@Matt

Yeah, I think this PCA is noisier than we're used to, so it's best not to delve too deeply into small differences on it. He doesn't really look statistically different to modern-day Spaniards in those 2 dimensions as it is.

The question is whether the Roman soldier was of local origins, from Northern Italy/Gaul or from Illyria.

I'm leaning less towards the last because I'd expect Anatolia_BA ancestry to have been widespread and elevated in the Balkans by this time, but perhaps there was variation in that shift. This aside, Illyrians were a**kickers and hands-down the toughest soldiers of the Roman army, deployed against Sassanian cavalry and Pictish raiders alike ;-).

If he was a typical South German local of Celtic origins(result of Beakers, Unetice, etc. homogenizing with local EEF "survivors" over time), then I guess Germanic migrations resulted in massive population replacement, after all. Alas, stranger things have happened.

Northern Italian or Transalpine Gaulish origins are also plausible. He clusters like those 2 or 3 locals from Colegno described in the Lombard paper.

Davidski said...

@All

The Global25 datasheets have now been updated with the following samples from this paper.

Germany_Medieval:AED_106
Germany_Medieval:AED_1135
Germany_Medieval:AED_249
Germany_Medieval:ALH_1
Germany_Medieval:ALH_10
Germany_Medieval:ALH_3
Germany_Medieval:NW_255
Germany_Medieval:STR_316
Germany_Medieval:STR_480
Germany_Medieval:STR_486
Germany_Medieval_ACD:AED_1108
Germany_Medieval_ACD:BIM_33
Germany_Medieval_ACD:NW_54
Germany_Medieval_ACD:STR_220
Germany_Medieval_ACD:STR_228
Germany_Medieval_ACD:STR_310
Germany_Medieval_ACD:STR_328
Germany_Medieval_ACD:STR_355
Germany_Medieval_ACD:STR_535
Germany_Medieval_outlier:STR_300
Germany_Roman:FN_2
Serbia_Gepid_ACD:VIM_2
Ukraine_Ostrogoth_ACD:KER_1

See here...

http://eurogenes.blogspot.com/2018/02/unleash-power-global-25-test-drive.html

Rob said...

@ Matt/ Dave

What are your thoughts on supervised ADMIXTURE based on modern Pops for these kind of studies ? I guess the classic Yamnaya / WHG/ ANF wouldn't be instructive, and there aren;t many Iron Age data to model on. So it's understandable, but at face value at least it seems funny in some choices (e.g. Fins).

Davidski said...

The supervised strategy isn't a bad one, but it looks like they're just basing their run on the 1000 Genomes dataset, probably because it has the most markers available.

The obvious problem with the 1000 Genomes is that it's very limited in the number of populations it offers. So that, for instance, Finns are basically a stand in for the diversity in half of Europe, which isn't very useful.

Samuel Andrews said...

The Roman soldier has similar ancient ancestry ratios to modern Spain & Northern Italy. His WHG is higher than both, more similar to Basque. The paper says his closest affinities are to Spain & Southern France. Btw, Southern French cluster with Basque.
Germany_Roman:FN_2

Barcin_N,58.2
Yamnaya_Samara,25.7
Iron_Gates_HG,16.1
Iran_ChL,0
Armenia_EBA,0
Levant_BA,0
England_Roman_outlier,0
WHG,0
Nganassan,0

Samuel Andrews said...

One of the foreigners in the Bavaria burial. But this one didn't have an elongated skull.

Odd ancient ancestry makeup. Maybe DNA coverage is low. Kind of looks like a mix of Beaker Sicily and something with Yamnaya ancestry. ALso, sort of similar to Mycenean ancient ancestry proporions.

3.9212"

Germany_Medieval_outlier:STR_300

Barcin_N,64.7
Yamnaya_Samara,18.3
Armenia_EBA,15.9
England_Roman_outlier,1
Iron_Gates_HG,0.1

Samuel Andrews said...

This doesn't make sense. Not like modern Romanian even though population assinight analysis put it with with Bulgaria/Romania. If anything, looks like a European/Cypriot or European/Anatolian mix.

2.8279"

Ukraine_Ostrogoth_ACD:KER_1

Armenia_EBA,30.9
Barcin_N,26.1
Yamnaya_Samara,22.8
England_Roman_outlier,18
Nganassan,2.1
Levant_BA,0.1
Iran_ChL,0
WHG,0
Iron_Gates_HG,0

Folker said...

Elongaded skulls are commonly found in Northern Gaul and all parts of Roman Empire where germans emigrated.

An example (text in English):

https://www.inrap.fr/en/exceptional-archaeological-site-obernai-more-6000-years-occupation-12088

ryukendo kendow said...

Just a quick note (if you're still there sam, or any other person): first thing to do maybe is to give the list of closest populations, which is always automatically outputted on nMonte. Just set input list as all samples, and ncycles as 1 (or any other super low number, will return in seconds). Just to get a general sense of where in the cloud of West Eurasians the sample lies, before we start modelling in earnest, as that would help us pick sources as well.

Anthro Survey said...

@Ryukendo

Yeah, to get a gist, I just get the closest 8 distances and terminate the program.
What's the command for setting the cycle number, though? Thanks in advance.

Davidski said...

@All

This might help for the outliers: the usual PCA of West Eurasia. All of these samples had enough markers to be positioned correctly in this PCA, so there's nothing weird going on, this is what they really are.

https://drive.google.com/file/d/1jayOOLurbj6DDf0mxG75SSehUIfngmtT/view?usp=sharing

Simon_W said...

The Crimean Goths vary craniometrically a lot from the other Goths and Germanics. Among other things they were brachycephalic. Which made it clear decades ago that there was something exotic going on about them. Nice to see this confirmed here. But these were not ancestral to the Goths that migrated further west and invaded the Roman empire, they stayed there on the Crimea.

Simon_W said...

And the Roman soldier from 300 AD could be anything, because from 212 AD onwards practically all free inhabitants of the Roman Empire had the Roman citizenship.
https://en.wikipedia.org/wiki/Constitutio_Antoniniana

So no way can we say he must be typical for Iron Age central Italians, let alone Latins.

Simon_W said...

But these results are interesting, they make sense of the strong Southeast European and slight East Asian admixture in my 3/4 Swabian 1/4 Swiss grandmother.

Matt said...

Quick work!

Using G25 to try and get a basic handle on where these samples fit:

First, NJ Trees with population averages:

All Averages: https://imgur.com/a/td2NG
Broad West Eurasian Averages: https://imgur.com/a/FTCZJ

Then, reprocessing Samples through PCA, on the restricted Broad West Eurasian Averages panel : https://imgur.com/a/89uyw (I've black boxed some samples since the jumble is tough to see them through)

Serbia Gepid looks fairly close to modern Serbian in its position, barring East Asian admixture. Some formula like 0.2 East Asian (not sure which) + 0.3 Germanic + 0.5 Serb might fit him OK.

If I had to guess a mix for the Crimean Goth, and we had to fix part of his ancestry in Germany/Scandinavia, I'd estimate about 1/3 ScandoGerman: 1/3 South Caucasian. (Though likely it would have to be more complex).

I was expecting a North Caucasus+other mix for Crimea, so perhaps this is very tentative evidence for a much more South Caucasus like (e.g. CHG like), North Caucasus in the past, and gene flow from the steppe has been relatively more important there than I have considered? Or something else?

FN_2 does look a little bit more "north" and "west" than any Italian population, even Bergamo, closer to modern Spaniards; this may well just mean that he was from Spain though.

The Medieval "Germans" are harder for me to make sense of. The Artificial Cranial Deformation (ACD) samples do indeed look very Southeast European, or more precisely at the modern day intersect of Central Europe-North Balkans. While the normal Germans look, well, normally German/Austrian. ACD sample AED_1108 look like he/she has a very decidely East European, push, and is a bit of an outlier.

Looking forward to seeing those Sarmatians; the Crimean Goth was as Turkish like here (closest modern neighbour, though somewhat distant still), so I'm guess those Sarmatians will be similarly accurately proxied by Tajiks.

Creative said...

Speaking in terms of everyday culture, narratives of Attila's Huns are more or less still omnipresent in German culture. As someone who is partly Bavarian, I would say some Bavarians would be flattered to have one of Attila’s Huns in there lineage.

Matt said...

Though looking at some more dimensions, Crimean Goth probably needs some modern Iranian like and East Asian as well, as the CHG affinity relative to Iran_N+East Asia looks too weak to fit with a purely South Caucasian+Germanic mix.

Anonymous said...

@Matt

Hunnish admixture in Gepids totally makes sense, historically speaking. Ardaric was one of Attila's most trusted generals, together with Valamir. So you can bet the alliance between Gepids and Huns was cemented with marriages.

https://en.wikipedia.org/wiki/Ardaric

Arza said...

These samples are probably a lot like GAC anyways.

Hopefully not all of them:
PL_N19 Funnel Beaker Culture female 3628BC-3589BC
PL_N20 Funnel Beaker Culture male 3626BC-3591BC
PL_N17 Early Bronze Age male 1953BC-1880BC
PL_N18 Funnel Beaker Culture female 3626BC-3591BC
PL_N22 Brzesc Kujawski Group of the Lengyel Culture female 4355BC-4266BC
PL_N25 Brzesc Kujawski Group of the Lengyel Culture female 4600-4000BC estimated
PL_N26 Brzesc Kujawski Group of the Lengyel Culture male 4326BC-4176BC
PL_N27 Brzesc Kujawski Group of the Lengyel Culture male 4600-4000BC estimated
PL_N28 Brzesc Kujawski Group of the Lengyel Culture male 4600-4000BC estimated
PL_N31 Brzesc Kujawski Group of the Lengyel Culture female 4312BC-4071BC
PL_N36 Brzesc Kujawski Group of the Lengyel Culture female 4600-4000BC estimated
PL_N38 Globular Amphora Culture female 3079BC-2921BC
PL_N42 Brzesc Kujawski Group of the Lengyel Culture female 4225BC-3992BC
PL_N44 Corded Ware Culture female 2563BC-2350BC
PL_N45 Corded Ware Culture female 2563BC-2350BC
PL_N47 Corded Ware Culture male 2563BC-2350BC
PL_N49 Corded Ware Culture male 2563BC-2350BC

Anonymous said...

@aniasi

"With all of the migrations, regroupings, and assimilation, it wouldn't surprise me that some Hunnic, Avar, or other Easter-Nomad women were taken as brides, especially if their husbands wanted to claim some of their heritage."

Who knows. Maybe heritage was a secondary reason the Germanic tribes refused to live under Attila's sons as vassals. They might have considered themselves heirs of Attila's empire.

Anthro Survey said...

@Simon_W

Haha, was going to say that you'd be pleased with this paper as it seems to provide an elegant, if unexpected, explanation for your findings. It also explains the "Balkanic traits" in Bavarians that phenoforums people discuss non-stop.

I'd be curious to see new results for her using either the German outlier300 or sample 535(both being SE shifted). Post if/when you can/are inclined to.

Tomorrow, I'll be posting some modern Balkaner models using these samples. Spoiler: Yup, Albanians seem to get a sizeable Slavic input roughly commensurate w/R1a+I2aDin and Slavic lexicon there.

Oh, take note of Italian_Abruzzo! Haven't tested my theory of it being Levant-poor(relative to Italy_South) yet, but it's not a bad input pop for Balkaners like I previously surmised.

Arza said...

Hmm.

Germany_Medieval:AED_249
England_Roman:6DT3 65%
Baltic_BA:Kivutkalns215 15.4%
England_Roman:6DT21 11.2%
England_Roman:6DT23 8.4%
Distance 2.7803%

Germany_Medieval:AED_106
Beaker_Britain:I2568 36.4%
Poland_BA:I6531 21%
CWC_Baltic:RISE00 20.6%
Beaker_Iberia:I6472 13.2%
Baltic_BA:Kivutkalns209 5.6%
Baltic_BA:Kivutkalns222 3.2%
Distance 2.576%

Anonymous said...

@aniasi

"I remember reading that the main language of the Huns was actually Gothic, which seems to have been spoken by all their tribal groups."

According to Priscus, who had diner with Attila, both Hunnic and Gothic were the lingua franca at Attila's court:

" As I waited and walked up and down in front of the enclosure which surrounded the house, a man, whom from his Scythian dress I took for a barbarian, came up and addressed me in Greek, with the word Xaire, "Hail!" I was surprised at a Scythian speaking Greek. For the subjects of the Huns, swept together from various lands, speak, besides their own barbarous tongues, either Hunnic or Gothic, or--as many as have commercial dealings with the western Romans--Latin; but none of them easily speak Greek, except captives from the Thracian or Illyrian sea-coast; and these last are easily known to any stranger by their torn garments and the squalor of their heads, as men who have met with a reverse."

http://faculty.georgetown.edu/jod/texts/priscus.html

Davidski said...

@Matt

The Sarmatians from this paper don't have enough markers to bother with. But they're Sarmatians from Pokrovka.

And there already are Sarmatians from Pokrovka in the Global25 datasheets.

AWood said...

My close cousin (23andMe) who shares my maternal grandfather's English surname is 1/2 English , 1/2 German (Thuringian). She has mtDNA D4j and still 0.1 East Asian ancestry. Now I know why.

Dave the Slothtopus said...

This paper doesn't seem to mention it, but the Thuringii also are reported to have (Hunnic?) females with elongated skulls, and also, at times, alliances with the Huns.

Cpk said...

Hunnic elite were Turkic but lingua franca is unknown.

Matt said...

@Davidski; True, I'd thought these were late Sarmatians from a similar period to the other samples, but they're just from the same era as Unterlander's paper (much less interesting... which feels odd to say, but is true).

Alogo said...

Anthro said: "Oh, take note of Italian_Abruzzo! Haven't tested my theory of it being Levant-poor(relative to Italy_South) yet, but it's not a bad input pop for Balkaners like I previously surmised."

It does seem to have lower Levant-like stuff compared to Italy_South (=Calabria?) but still higher than the Balkans.

Anthro Survey said...

@Alogo

Than contemporary Balkaners or ancient Balkan samples? The former have a considerable "trans-Danubian" superstrate(mostly Slavic) upwards of 30-60%. Their reduced Anatolia_BA fraction may correspond to reduced Levant affinity relative to Abruzzo.

Alogo said...

@Anthro

Both (if anything the ancient Balkan samples had less of it compared to at least some areas like the Aegean or deep southern Greece). And I don't think the Caucasus/Levant ratio in Anatolia_BA can wholly explain what we see in Italy, at least south of Tuscany. You likely need Levant/North African type of stuff.

I've played with ancient and modern Balkan genomes in Global25 quite a bit. The (increased) affinity to Baltic_BA in the moderns is obvious (with an interesting apparent split between Balkan Slavs and Albanians and Greeks in that sort of ancestry) but it doesn't seem to explain the other post-ancient? stuff at least South Italy has that's lacking in the Balkans.

Anthro Survey said...

@Alogo

Well, it's true that southern Italy was more cosmopolitan than Moesia/Illyricum/Macedonia and better positioned travel-wise to receive Levantine input. This is especially so for Campania, Calabria and Puglia. Thus, more Levantine affinity would make sense.

Roman age flow into Balkan provinces north of Thessaly would have been almost exclusively comprised of Greek speakers from Anatolia. Not sure about Peloponnese or Greece, though, since it had good maritime access.

Btw, Albanians take Slav_Czech in the 20% range in most of my models. That's considerable but not inconsistent with their culture, lexicon, tons of Slavic toponyms, Y-markers, etc.




Alogo said...

@Anthro

"Roman age flow into Balkan provinces north of Thessaly would have been almost exclusively comprised of Greek speakers from Anatolia. Not sure about Peloponnese or Greece, though, since it had good maritime access."

I agree with that, further Near Eastern influx into the Balkans (and I do think there might have been some compared to even the ancient higher Caucasus samples, at least in the more southern and eastern areas - the Greek and Bulgarian samples compared to the rest for example) seems to prefer more northerly NE sources. Anatolia is a good bet considering the ties. The more southern parts of the Aegean, especially Crete which spent some time under direct Saracen rule too as we know, seem to have higher Levantine(/North African)-like affinities.

I think the later (or different, considering that hell, Sicily had Phoenician colonies in its West end while having Greek colonies in its East) post ancient Caucasus-heavy influx, or at least *part* of it, to Italy came from more southerly sources than Anatolia considering it seems to prefer Levant over Caucasus. I think that everything south of Tuscany has very clear increased Levant_N-like affinities, beyond the ancient samples we currently have, that eats a chunk of the local Neolithic while looking similar to it.

"Btw, Albanians take Slav_Czech in the 20% range in most of my models. That's considerable but not inconsistent with their culture, lexicon, tons of Slavic toponyms, Y-markers, etc. "

For sure, I think we actually had a discussion on this issue a good while ago.

I ran quite a few models for all Balkanites with Baltic_BA and Slav_Bohemia as proxies for early Slavic ancestry alongside ancient Balkan genomes, some near eastern stuff etc. and Albanians came out as 6.2-43 Slavic-like. The average of the two extreme values being 24.6 and the best fits also get something similar, actually a bit less. Greeks came out as 3.4-37, average of range 20.2 and close to what they get with the best fits, but the Greek sample also includes some islanders - on average mainland Greeks do seem to have higher Slavic admixture compared to Albanians. The rest of the Balkans gets much higher values in that sort of ancestry (the averages being something like 40%, though somewhat less with best fits).

The obvious very serious limitations (beyond the inherent limitations of nMonte modelling but we on the very amateur side must make do) being that likely neither Baltic_BA (too extreme, way beyond even modern Balts) nor Slav_Bohemia (the most genetically "western" of the three early Slavic samples we have compared to the other two more Baltic-like ones that was high quality enough for David to include) are perfect proxies and that we don't *exactly* know how admixed the group coming in and the groups already there were. But the current fits are good nonetheless, especially with Baltic_BA so maybe a basic model of Balkan + Slavic + some Near East for certain parts will turn out to work ok.

Davidski said...

@All

Please note that I've just renamed the Gepid and Ostrogothic samples in all datasheets and graphics to the following...

Gepid_Serbia_ACD:VIM_2

Ostrogothic_Crimea_ACD:KER_1

Open Genomes said...

David, I think the new van de Loosdrecht et al. (2008) Ibero-Maurasian aDNA study is worth a separate post on its own. The Europe Neolithic certainly has a kind of "Natufian" component (i.e. Stuttgart LBK), and this kind of North African "Ibero-Maurasian" component may well turn up in Mesolithic or Early Neolithic Iberia.

Do we see any sign of it now in the Early Neolithic Iberians?
Along with the new Early Neolithic Iberians from Valdosera et al. (2018), we also have the sample from El Torcal de Antiquera (El Toro), although the raw data there may not yet be available.

Not all of the "Mozabite-like" component in Southern Europe may be recent (from the Carthaginians onward). Some LBK samples share a high-level of IBD with the Neolithic Iberians. Some of this "Natufian-like" component in the LBK might be coming directly from North Africa.

Open Genomes said...

The Eurasian Steppe Ys are here!

55 Eurasian Steppe selected Y haplogroups

Also, everyone can get all the named Y SNPs for the 95 males, positive and negative, from these .tsv files right here, and import them into any spreadsheet:
http://www.open-genomes.org/genomes/Eurasian%20Steppe/Y-SNPs/
Here's how:
1. Open a blank spreadsheet (Google docs, Excel, or Open Office)
2. Select a file on the above page, and right click and Copy Link Address
3. In the first cell in the upper left (A1) paste the following, but substitute the URL of the file you want between the quotes: For example, for the first file listed on the page, use this:
=importData("http://www.open-genomes.org/…/Euras…/Y-SNPs/DA2-Y-SNPs-R.tsv")

The data gets loaded into the spreadsheet and you you can create a filter (for example for "+" meaning positive or "?" meaning ambiguous in the first column) or sort the haplogroups any way you want.

You can figure out for yourself what the lowest level-haplogroup is for all these samples, without taking anyone else's word for it. Go check it out.

Davidski said...

@Open Genomes

The Iberomaurusian thread is here...

http://eurogenes.blogspot.com/2018/03/the-iberomaurusians.html

By the way, what are the most reliable Y-haplogroup calls for the 55 Eurasian samples, and is there any way to work out which periods they're from?