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Re: #AncientDNA - Merovingian period in Flanders (Belgium) #AncientDNA

 

Hi Shane,

Yes, indeed, it is entirely possible to check the status of an aDNA sample for SNPs of known downstream clades of R-FGC17460. This can be done from the BAM file (hg19 or hg38?), or by realigning the sample's fastq file to a reference (preferably hg38). However, FTDNA has in principle already carried out this verification, including with regard to the Private Variants of downstream testers. Nevertheless, it may happen that FTDNA does not retain certain positive results for certain downstream SNPs out of caution. For example, it is not impossible for an aDNA sample to be positive for one or more downstream SNPs, but negative for others, from the same block of equivalent SNPs (pre-R-XXXXXX).? Regarding aDNAs, it is not totally impossible that these belonged to branches which are now extinct, or in danger of extinction (and not identified to date), of the Y-Haplotree; branches which could initially split the said block of equivalent SNPs into two (we do not know the chronological order in which these equivalent SNPs were formed).

Unfortunately, I do not have the opportunity to carry out this kind of analysis these days.

Cheers,

Ewenn

Le lun. 15 juil. 2024, 17:14, Shane Tarry via <smdtarry=[email protected]> a ¨¦crit?:
Ewenn,
Thanks for the heads up on the new paper. I've already read most of it. It's pretty cool to read about a burial that is part of my paternal lineage. If I understand correctly, KO015 also had the highest percentage of Gaulish autosomal (66%). Is it possible to use the BAM file to look for downstream hapologroups for KO015?

Thanks,
Shane

On Sunday, July 14, 2024 at 05:06:41 PM CDT, Ewenn <gwenng008@...> wrote:


Hi Bertram, all,

A new paper concerning this study and these aDNAs was recently published: 0pubmed

The 5 aDNAs identified as belonging to R-U106 were confirmed by FTDNA, with more refined haplogroups.

For example, KOS015 (Koksijde 15), previously identified as R-FGC17465, is now identified as R-FGC17460, by FTDNA. Or an average TMRCA going from 1500 BCE to 200 BCE (if we consider KOS015 as positive for the 11 equivalent SNPs of this haplogroup).

BAM/FastQ files are available from the European Nucleotide Archive under project PRJEB70768.

Cheers,

Ewenn

Le sam. 20 mai 2023, 16:13, Bertram de Verdun via <u106verdun=[email protected]> a ¨¦crit?:
Here below a link to a paper about two burial sites from Merovingian period in Belgium, close to French boundary.

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The paper is in Flemish, but we can see that several individuals belong to U106.

Regards

Bertram

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