SUMMARY OF YSNP (May, 2016)

Classification of Branch: Near Genealogical - son of FGC5659.

Known sons: DC46 is the son of DC38.

Estimated Breadth of branch (speculative estimate of positive submissions) = currently only four but many are unknown.

Scope of Testing within Signature: No testing within signatures other than Big Y tests.

Dominant Surnames: Peevy (2), O'Hearn (1) and Brown (1) - many more could be added when true scope of branch becomes better known.

Date that branch was discovered: Unknown.

Source of Branch discovery: Three FTDNA Big Y tests (B3470, 111836 and 138720).

Number of Negative Broad Tests: Around 45 Big Y results and 30 more via packs & panels.

Number of Negative Tests within Signature: None known.

Pending Tests (within signature): None known.

ANALYSIS OF CURRENT DC38 HAPLOTREE

I manually separated around 100 L226 submissions combined with 23 known YSNP results and used the SAPP tool to generate a chart which appears to be accurate upon inspection. This branch of L226 has several issues preventing the complete descendant chart of DC38:

1) All three submissions that tested DC38+ have three common YSTR marker values but unfortunately, there was only one good match of this signature. So the scope of DC38 may be pretty accurate and small in scope. One submission, Sullivan (329000) is a reasonable signature match but was omitted from DC38 branch by the SAPP tool.

2) The current limit of around 100 submissions limits the accuracy of the desendant chart for this particular L226 branch. As more submissions can be entered into the SAPP tool, new branches are discovered and more YSNPs are tested, a few more submissions may be added to the DC38 branch over time.

3) However, the signature associated with the DC38 was able to reveal one good testing candidate - Peevy (90545).

As the limits of the SAPP are slowly increased and more testing information becomes available (both new YSTR submissions and additional YSNP testing), the accuracy will greatly improve.

OTHER FUTURE YSNP TESTING

No pending tests are known.

DC38 Haplotree

The link to the haplotree chart is the best way to look at the evolution of the DC38 haplotree. It is visually much easier to follow than spreadsheets and is very close to a genealogist descendant tree charts that genealogists already are well trained in analyzing:

Haplotree of DC38

This summary will attempt to priortize testing and explain why each test is beneficial to the the verification of the DC8 branch.

Here are the priorities for testing:

1) The scope of DC38 is fairly well known but its scope could increse some with more submissions into SAPP and more genetic information as input to SAPP.

2) It is recommended that all current submissions that are predicted DC38 positive should test only DC38 for $17.50 from YSEQ. Current predicted DC38 positive testing candidates include:

90545 Peavey
329000 Sullivan (from manual analysis)

3) Once these testing candidates are confirmed DC38 positive, it is recommended that they then test DC46 (or both could be tested at the same time). After the DC38/DC46 status is confirmed, testing the private YSNPs associated with their NGS submissions whose signature matches (in the same branch). In the future, this section will be enhanced with actual testing recommendations for private YSNPs.