Known Persons with DYS19<=9


We have compiled the available Y-DNA STR data for all known persons tested who exhibit the low DYS19 STR marker value of 9, or less. The various individuals have tested at differing labs, with different sets of markers. Therefore, one must be cautious in making comparisons. Given that caveat, see the genetic distance cross-matrix and Y-DNA data of these 24 persons. We used McGee's tool to calculate Time (Generations) to Most Recent Common Ancestor, in generations, at 50% and at 95%.

Genetic distance cross-matrices and Y-DNA STR data for 14 (of the now 17 members of the DYS19<=9 Project at FTDNA) appear on these pages:
matrix - 14 members with >= 37 marker tests
matrix - 8 members with >= 67 marker tests
matrix - 6 members with 111 marker tests

The Swiss subgroup of eight (of the nine now listed at familytreedna.com) known-related persons among these members presents interesting data showing rather few mutations, considering the 20 generations and 650 years since the common ancestor. More markers tested for other members would help to make the story clearer!

The actual TMRCAs within this Swiss subgroup, using the known genealogical paper-trails, are displayed in this table. A comparison of this actual paper-trail data with calculated predictions is presented here.

We do not have enough data to extend those charting techniques to the other subgroups. At least, we can offer a simplified table of mutations, relative to the modal, for four of the Italian group.

An interesting form of relationship tree, for all 17 members of the DYS19<=9 Project at FTDNA, is presented here in this "Distance-based Circular Dendrogram", based on Y-STR data. With the advent of new DNA technology, we now have SNP data in addition to STR data. Note that three members who have tested "BigY", plus one with a targeted SNP test, have terminal SNP of E-PF4666, even with common ancestry dating back about 60 generations. This suggests that others of the group may also test positive for this SNP.

Distance-based_Circular_Dendrogram


The red dots, next to selected ftdna kit numbers, represent those members tested positive for E-PF4666. Note that the tree branching is NOT the same as that derived from the paper-trail.
Thanks to Rob Spencer for the handy Dendrogram tool. Click on "Tools" here, and he has lots more good stuff on his site.


Published data for DYS19<=9 has been gathered here from multiple sites for ease of analysis. A degree of anonymization has been applied. Ancestral surnames (or variants) include: Beasley, Castrignano, Cellier, Chiffelle, Cipelli, Ciullo, D'Elia, Felizola, Galliano, Junod, Koenig, Ragucci, Ramondino, Raymond, Rossetti, Schiffley, Tschiffeli, Villano, Visconti, Willoughby.

If any person represented here objects to this posting, or wishes further information, please contact the author with specifics, at the email address given at the foot of this page.

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