Showing posts with label BritainsDNA. Show all posts
Showing posts with label BritainsDNA. Show all posts

Tuesday, March 4, 2014

Dr. Jim Wilson and ScotlandsDNA Release Y-SNP Positions for Chromo2

In a move that I know will make our community of citizen scientists and Y-SNP researchers very happy, Dr. Jim Wilson sent me an email with a file containing the ScotlandsDNA/BritainsDNA Chromo2 Y-SNP positions and this announcement today:

ScotlandsDNA are happy to share the chromosome positions for the Y chromosome SNPs on the chromo2 chip. We hope these catalyse a step change in the development of the Y chromosome tree. Wherever we have looked the structure has increased greatly in resolution, but we simply do not have time to analyse all the data and so are sharing this file with the community to allow everyone to take part. These are the first fruits of whole Y chromosome sequencing, taken out into a much larger population - the beginning of understanding what all the new markers mean.

The file can be found here

Thanks again, Jim!


Wednesday, February 19, 2014

BritainsDNA Chromo2 Y-SNP Results Spreadsheet

I received an email from Dr. Jim Wilson of BritainsDNA today which included a link to a spreadsheet with Chromo2 Y-SNP results. He has given me permission to publish it with his comments:

We have finally got round to releasing an anonymised dataset of ~2000 chromo2Y results. This is an excel sheet with ~14,200 SNP results for ~2000 random men using the chromo2 chip, so will be a goldmine for discovering further genealogical structure in European haplogroups. I think it will be of great interest to genetic genealogists and others who are interested in breaking down their haplogroups and subgroups. 

The link is:  
https://www.britainsdna.com/download/C2_2000_v2.zip
(Updated 2/24/14)

Thanks again, Jim!


Wednesday, November 20, 2013

A List of Alternate Names for the Y-SNPs from BritainsDNA's Chromo2 Test

(For Advanced Y-DNA Researchers)

Dr. James Wilson from BritainsDNA has sent me a list of the alternate names for the Chromo2 Y-SNPs and has given me permission to post it for public access with his comments, as follows:

Please find attached a list of alternate names for chromo2 Y SNPs...This is based on comparisons some months ago now, although a few SNPs have been updated in the meantime...Where there is no alternative name for an S SNP it means it was not listed/named in any compendium, browser or database I had available when this file was put together and is not available in any other product as far as I am aware (of course apart from a complete Y chromosome sequence).

Note that all the SNPs on this list manufactured on the chip, but a small proportion do not give good genotyping clusters; I haven't had time to clean them out. There are also a small number of SNPs not on this list eg S28, S250, which we Taqman in the appropriate samples as Illumina appear to have removed them from the design and they have no proxies on the chip or none known.


In due course I also intend to share the genome co-ordinates to allow comparisons with whole Y chromosome sequences, despite this being a case of handing larger competitors the fruits of our investment. At present I have started to do that for individual SNPs that are queried on a case-by-case basis, as I don't as yet have the permissions of all of the sequenced individuals to hand out their SNPs in this way.


You can find the list here. (Make sure you download the entire list and not just what is visible through Google Docs.)

Thanks, Jim!