Wednesday, 17 February 2016

New Member - 433459, Farrar, MDKA Canada, Ungrouped

Several sets of new Y-DNA results have been posted to the project over the last few months and several new ones are expected shortly. It's good to see the project growing!

I will be summarising these new results and how they fit in to the overall project in a series of blog posts over the course of the next few weeks. And to start off with, here is the first one.

Basic information

Kit Number: 433459

Name: Farrar

MDKA: John Farrow b 1810 PEI d 1872 - 1880 N.B. Can

Background: The Most Distant Known Ancestor (MDKA) is John Farrow born 1810 Prince Edward Island, died 1872-1880 New Brunswick, Canada. There is some uncertainty in the family if the ancestral surname is Farrow or Farrar as the two names were often used interchangeably. His ancestry was thought to be northern England, perhaps Norfolk, but do the DNA results bear this out?

Other projects: in accordance with our recommendations (see Getting the Most out of your DNA Test), he has joined several appropriate haplogroup projects including the following:

STR marker profile

He did the Y-DNA-67 marker test and has 168 matches at the 67 marker level but there are no Farrar’s, Farrow's or Farrell’s. In fact, the closest he comes to anyone in the entire Farrell DNA project is a Genetic Distance of 12 out of 37, which is very distant indeed and suggests no common ancestor for several thousand years with any of the Farrell group members. As a result, for now, this new member has been placed in the Ungrouped (Haplogroup R) section.

He also joined the Farrar DNA Project but has no close matches there either. So it may be that he is the first Farrar to test from his own particular branch of the Farrar family or that there was an NPE (non-paternity event e.g. adoption, infidelity, etc) somewhere along his ancestral line in the last 1000 years or so.

If there was an NPE, we could get a clue to as to where the Y-DNA came from by examining his closest matches. The most common surnames that occur amongst his matches include Campbell (x40) & Stewart (x8). And many of his matches come from Scotland and Northern Ireland, suggesting that his direct male line was originally Scots or Scots-Irish. The predominance of Campbell among his matches is highly suggestive of a Campbell being the progenitor of his direct male line.

SNP Marker Profile

Similarly, we can deduce from his closest matches what his terminal SNP is likely to be and this in turn might give us a clue as to the possible origins of his Y-DNA. The most common downstream terminal SNPs among his Y-DNA matches are:
  • L1335 … x4
  • L1065 … x4
  • CTS7030 … x3
  • DF13 … x3
I looked to see where these were situated on the YFull haplotree and FTDNA Haplotree, and here is what I found:

  • DF13 is relatively upstream and the SNP progression is as follows ...
    • L21 > DF13 > L1335 > L1065 / CTS7030
  • L1335 sits below DF13 and was formed about 4200 years ago.
  • L1065 is actually equivalent to CTS7030 (x3 matches) and CTS6838 (x2 matches). It sits just below L1335. It was formed about 3600 years ago.
  • So the most likely candidate for his terminal SNP based on the above is L1065.

I looked to see if we could perhaps travel a bit more downstream. And indeed, several of his matches have other SNPs below this one. Looking at his list of matches, the following more downstream SNPs occur:

  • FGC10117 x2 (a Campbell and a Ford), FGC10125 x2 (both Campbell’s). 
  • YFull puts these SNPs as equivalent to each other (i.e. at the same level = they are the same or adjacent SNPs) and has its own name for the SNP, namely Y7359. 
  • FTDNA has a slightly different placement but they all occur in more or less the same general area. 

So based on this data, it is most probable that this new member's terminal SNP is Y7359 or FGC10117 or FGC10125, as illustrated in the diagram below. In this situation, the next step would be to seek advice from the Haplogroup Project Admins on what additional testing options are recommended in order to confirm if this guesstimate for the terminal SNP is correct.

In fact, this member subsequently ordered the R1b-M343 Backbone SNP Pack (as well as the Y-111 upgrade). The SNP results came back with a negative result for FGC10125, but a positive result for  Z16325 (also known as S744). This became his new terminal SNP and in fact it is located on the adjacent branch to the SNPs that we guessed could be his terminal SNP. The diagram below shows their relative positions on the YFull haplotree.

The possible (red) and actual (green) terminal SNPs for member 433459 on the YFULL Tree

These results place this member in a distinctly Scottish cluster and his position on the evolutionary tree is nicely displayed in Alex Williamson's Big Tree here and partially reproduced in the diagram below. Note all the Scottish flags!

a small portion of the sub-branches below R-Z16325
(click to enlarge)

Next Steps

Further testing of additional SNPs (such as the L1065 SNP Pack for $119) would place this individual even further downstream in the human evolutionary tree, would identify on which sub-branch below Z16325 he currently sits, and would ultimately identify the likely surname of the progenitor of his father's father's father's line.

The L1065 SNP Pack and the SNPs it tests for (in pink)
Green SNPs = tested positive; red SNPs = tested negative

Maurice Gleeson
Feb 2016

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