View Full Version : A thread for historical and pre-historic DF19 samples ... we're up to 3, and counting

12-13-2019, 08:05 PM
But two of the three just showed up this year, so maybe we're on a roll!
Now that we have "critical mass" of a sample size larger than one, I thought I would take a tip from Bollox79's U106 observations and create a thread to keep all the finds as they (hopefully) keep coming in.

So the first two in find order (the oldest and youngest in burial date), 6Drif23 and VK333 were found at latitudes north of Hamburg, Germany. 6Drif23 in York and VK333 on the island of Íland, Sweden. The raw data for VK333 is still embargoed. In the preprint, autosomally, he looked like a number of other Danish Viking-era samples who all had a triple-peak mix of southern, western and northern components. Culturally (burial style and carved incisors) VK333 very much looks like a Viking.

Here is 6Drif23's autosomal G25 map:



^^Culturally he and the rest of the decapitated Driffield Terrace crowd are something of a mystery. They were buried in a similar context, but it's not totally clear what was going on.

The third sample was found buried at the Mausoleo di Augusto (Mausoleum of the Emperor Augustus and a whole host of other Roman VIPs). We can probably rule out his being a Roman VIP, and his burial date estimate overlaps the date of the Mausoleum's looting (along with the rest of Rome) by Alaric's forces in 410 AD. While his burial far more south, his autosomal map is even more north "Germanic" than 6Drif23:


Y-SNPs: 6Drif23 is a DF88, RMPR31 is a Z302, and so far VK333 is just classified as DF19.
DF88 and Z302 are the two main subclades of DF19 and probably date at least as far back as Beaker times, but their modern distribution doesn't look radically different. Their modern distribution looks roughly like U106, just with far fewer members.
The two subclades may have traveled together or lived adjacently for a long time.

09-22-2020, 04:38 PM
Thanks to Sheepslayer, we now know VK333's line:

VK333 (Oland_1028), Sweden, 885 ▒ 69 CE: R1b-DF19 > FGC11833 > S4281 > S4268 > Z17112 > FT354149 > Z17125 > Z17123 > Z29034*

Level DF88: S4267 (+2), S7445 (+1), S23780 (+1)

Level FGC11833: FGC11833 (+1)

Level S4281: Z17109 (+2), Z17108 (+1), S4281 (+1)

Level S4268: Z17111 (+3)

Level Z17112: FGC68462 (+1)

Level FT354149: No calls, positive downstream. Presumed positive
Level Z27257: Z27261 (-1), Z27260 (-1)
Level S17075: S17075 (-1)
Level PH3649: S4273 (-1), S4276 (-1), S4288 (-1), Z39822 (-1)
Level Z21380: No calls, negative downstream

Level Z17125: FT37310 (+1)

Level Z17123: No calls, positive downstream. Presumed positive

Level Z29034: Z29036 (+2), Z29040 (+2), Z29037 (+2), Z29039 (+1)

Negative for FT116675 (1 read) and all downstream. Very negative for BY56504

You can now see VK333 and 6DRIF23 on the Big Tree:

03-12-2021, 06:24 PM
And finally #4 appears, and he was worth the wait. Alex Williamson identified one of the Dutch Bell Beaker samples as a DF19!

Alex just identified I5748 as a DF19>Z302

aDNA: I5748
MDKA Birth: Netherlands
Bell Beaker, PRJEB23635. 2579-2211 calBCE (3945▒55 BP, GrN-6650C). Noord-Holland, Oostwoud, De Tuithoorn Netherlands.
Tree Position
R-P312/S116 > DF19/S232 > Z302/S233 > Exact position not yet finalized.

First DF19 to be found dated to earlier than 200AD :biggrin1::beerchug::biggrin1:

03-12-2021, 11:25 PM
I looked at the BAM, I'm afraid I5748 is either Z302* or some undiscovered block split because he has one negative read each for two variants denoting both branches directly downstream of Z302.

My notes:

Couldn't find any reads on level Z302

03-13-2021, 12:23 AM
I looked at the BAM, I'm afraid I5748 is either Z302* or some undiscovered block split because he has one negative read each for two variants denoting both branches directly downstream of Z302.

My notes:

Couldn't find any reads on level Z302

Thanks! It's kinda crazy, we just jumped back from 200 AD to almost butting up against the P312 event horizon: P312's TMRCA at yfull is 4500ybp, DF19 (and both main subclades, DF88 and Z302) formed around 4500 ybp along with P312's other "sons"
At ~3945ybp, this burial is only about 600 years after Z302* was formed.

03-13-2021, 01:29 AM
And finally #4 appears, and he was worth the wait.

Indeed he was worth it. Olalde et. al., 2018 Supplementary Information (at https://www.nature.com/articles/nature25738#Sec21) refer to the original excavation of I5748 where he was called Skeleton 575, and that work is summarised in a very comprehensive paper by Fokkens et. al. 2017, available for download at https://scholarlypublications.universiteitleiden.nl/handle/1887/57381. My quiet weekend just became a little busier.

03-25-2021, 06:05 PM

^^ York, England; Vickleby, Sweden; and Oostwoud, Netherlands.
So three of the four ancient DF19 finds are from latitudes even with or north of Berlin, and the fourth (RMPR31 buried down in Rome ~400AD) looks more (modern) Norwegian than the rest...

Distance to: ITA_Rome_Late_Antiquity:RMPR31
0.02240159 Norwegian
0.02290643 Dutch
0.02295681 Danish
0.02304767 French_Pas-de-Calais
0.02341117 Afrikaner
0.02345321 Swedish
0.02382061 Welsh
0.02412413 German
0.02468599 English
0.02499629 Icelandic

Distance to: Bell_Beaker_NLD:I5748
0.02355857 Norwegian
0.02409423 Icelandic
0.02440895 Irish
0.02451191 Danish
0.02470650 Shetlandic
0.02544114 Scottish
0.02549502 Swedish
0.02567693 Dutch
0.02569311 Orcadian
0.02630714 Welsh

Mind you I'm not saying R31 is Norwegian, I'm just saying his burial location can't be a good indication of his ethnic or geographic origin.

Also I5748 might be the first DF19 sample to be buried near where he grew up. :)

04-08-2021, 07:50 PM
Just for reference. These are in chronological order, but it's also order of Barcin percentage (scaled)

Target--- Barcin_N--WHG--Yamnaya_Samara
Bell_Beaker_NLD:I5748 23.4 12.8 63.8
England_Roman:6DT23 37.2 14.6 48.2
ITA_Rome_Late_Antiquity:RMPR31 38.8 17.6 43.6
VK2020_SWE_Oland_VA:VK333 44.8 11.0 44.2