SUMMARY OF SNP (March, 2013)

L362 is the son of P314.2 and descends from the DF21 major branch. Predicted Breadth of SNP (speculative estimate of positive submissions) = 14 = 2 x 95 % (13 of 13) + 8 x 90 % (12 of 13) + 15 x 80 % (11 of 13) + 9 x 10 % (10 of 13). Current testing implies htat L362 is a more narrower breadth than most L21 Y-SNPs which usually test positive down to 70 % matches of the fingerprints. However, with further testing, L362 could test positive at lower matches.

Note that the number of known testing candidates remains rather flat as the fingerprint match decreases. This is not typical for most Y-SNPs. This flat trend suggests substantial overlap of L362 with non-L362 submissions at higher fingerprint matches. Additionally, most SNPs test positive down to 70 % matches but L362 only tests positive down to 83 % matches and all eight tests between 50 % and 83 % have tested negative to date. This indicates that L743 could be much narrower in scope than most SNPs. Additionally, due to the lack of an obvious decrease in testing candidates as the fingerprint decreases suggests that most lower fingerprint will probably test negative but some lower fingerprint matches should also test positive.

Summary of L362 testing

Classification of SNP: Near Private - mixture of surnames but only around 1,000 years old.

Source of SNP: FTDNA WTY - GRC0009449, FTDNA 80166 & Y-Search HQCNC.

Year that SNP was discovered: August, 2011.

Dominant Surnames (positive): Carter (1), Kelly (1), McCarthy (3), Perry (1) and Sullivan (1).

Number of Positive Tests: Seven known.

Number of Negative Broad Tests (below 50 % match): Around 22.

Number of Negative Tests within Fingerprint (50 % to 70 % matches): Three known.

Pending Tests (within Fingerprint): None known.

ISOGG Status - Prove relationship of L362 to other L21 SNPs

All requirements of proving L362 position have been met. Note: L362 has already qualified for the ISOGG haplotree.

ISOGG Status - Prove genetic and surname diversity of L362

L362 satisfies the genetic diversity requirement and the surname diversity requirement for inclusion on the ISOGG haplotree. Two submissions of L362 must have at least a genetic distance of 10 (15 % x 67 markers = 10). Note: L362 has already qualified for the ISOGG haplotree.

DNA FINGERPRINT & SIGNATURES

L21 Off Modal Mutations:

Markers 1 to 37: 390 <= 23, 388 >= 13, 439 >= 13, 389-2 <= 28, 449 <= 29, 464c <= 16, 460 <= 10 and 570 >= 18 (8 mutations).

Markers 38 to 67: 395S1a >= 16, 406S1 >= 11, 534 >= 16, 557 >= 17 and 617 >= 13 (5 mutations).

DNA Signature (L21 Plus): 21-314-P13-A.

Markers 1 to 37: 390 <= 23, 388 >= 13, 439 >= 13 and 389-ii-i <= 15 (4 mutations).

Markers 38 to 67: 395S1a >= 16, 406S1 >= 11 and 617 = 13 (3 mutations).

PROPOSED PHYLOGENETIC TREE

Nigel McCarthy has authored what I consider to be one the better phylogenetic trees that I have seen. This phylogenetic tree does not use the typical phylogenetic software programs which are generally not very accurate. Since there will always be hidden backwards and parallel mutations, any chart of this nature will have minor errors and the chart will change over time as more testing results becomes avaialable, For more information concerning this chart contact Nigel McCarthy via the McCarthy surname project:

L362 & P314.2 Phylogenetic Tree