Deep dive into Y-DNA NextGen SNP genetic genealogy tests like Big Y-700 and YSeq WGS
From Biology to Data to the Phylogenetic Tree to Geographic Interpretation

– Explanation of raw read alignment to the genome which produces your SNP results
– Understanding your terminal SNP and why it changes
– How to use Novel Variants / Unnamed Variants to extend the phylogenetic tree for your family
– Tips on getting the most info and avoiding bugs in current tools using real world examples

Publication of maps of earliest known paternal ancestor within Ireland for over 200 samples with known geographic origin in Ireland based on data as of 22 March 2020. Groups plotted include R-M222, R-Z39589, R-Z253, R-U106, R1a, I1, and I2.

Review of the DNA results from the first 18 samples with FTDNA’s Big Y-500 STR results. Comparison of Y-37 to Big Y-500 results for Genetic Distance, TMRCA.

Y-37 STR testing remains the best genetic genealogy entry point for budgets under $ 200 and also for research sampling many participants in a search for matches or specific characteristics. From a live presentation given at SCGS Jamboree 2017 by Brad Larkin on 8 June 2017.

It gives us great pleasure to publish the winner of the Surname DNA Journal 2015 Genetic Genealogist of the Year award as Dr Maurice Gleeson MB of London, England.

Counting Y-DNA STR differences is a poor discriminator for members of the same family. Unless a very large number of markers are used, matching cannot be used with a statistically significant degree of accuracy to establish whether someone is more closely related even to second cousins. However there are other methods that may be used to distinguish degrees of relatedness. We present a simple and useful test which involves finding a “segmenting marker” which can establish relative consanguinity with some accuracy, and we give a real-life example of its use to show from which of two 17th Century brothers a man of partly unknown origins descended.