Calculation

Any discussions regarding y-DNA markers, results or questions.

Posts: 2443
Joined: Sun Mar 18, 2012 7:08 am
Location: Pisa (Italy)
YDNA:
R- Z2110 (KV7Y2)
MtDNA:
K1a1b1e/HQ176413
PostPosted: Thu Jul 31, 2014 11:58 am
Seferhabahir writes on Anthrogenica:

"So, if I use the current best guess from Michal for SNP counting of 88 years per high-reliability FGC SNP, this FGC13899 line you are in diverged from the other lines in Z251 perhaps 4,000 years ago. Your GD at 111 markers with Dorr the other FGC3899*, which is something like 28 or so, is pretty consistent with that".
What has happened meanwhile?

(454 x 28): 222= 57,2
57,2 x 25= 1430 years before present
4000: 1430= 2,79
which is what I am saying from years (i.e that the usual calculation should be multiplied for at least 2.5 to 3.2), when pretty all used the first calculation!

Posts: 2443
Joined: Sun Mar 18, 2012 7:08 am
Location: Pisa (Italy)
YDNA:
R- Z2110 (KV7Y2)
MtDNA:
K1a1b1e/HQ176413
PostPosted: Sun Aug 03, 2014 2:47 pm
Mark Jost publishes this on Anthrogenica:
"Here is a chart I have been working on for my closest STR GD as they relate to the latest SNP Testing along with showing FtDNA TIP probabilities. I have always considered 1 sigma (68%) bell curve as a good point to work within. In my chart you will see that a Watterson family with three sons came to the Virginia Colony in 1762.
I have 25 validated SNPs under DF13>FGC5496. I tested these 25 SNPs against my 155812 GD9/67 & GD13/111 and it produced SGD9/25 or 17 positive out of 25. My next two candidates are Watterson's. 206726 was born on the Isle of Man is a STR GD6/67 & GD8/111 turned out SGD3/25 or 22 positive of 25 SNPs. Then my predicted aDNA 4th cousin 316063 was shown to be a GD1/67 & GD3/111 had a SGD2/25 or 23 positive out of my 25 SNPs. (His Aunt and I have the same small non-European admixture percentage which would correlate to have occurred since the 1762 arrival in colonial times. There is a fourth candidate N41593 who is a GD3/67 & GD5/111 who appears to be at least one generation back (MDKA b1824) who would be assumed to be a SGD2 or 3. I am going to assume their is a SNP missing based on the overall STR GD's and TIP calculations or at least a mutation that has occurred in different quadrants of the bell curve.
I also show various known generation birth years as compared to the various years per SNP mutation. You can note that based on the known years per generation back to the late 1600's, the 90 years per SNP works out very good as a general rule of thumb and a there is not a missing SNP as may be indicated after all."

Posts: 2276
Joined: Fri Mar 16, 2012 5:43 pm

MtDNA:
U5b2b
PostPosted: Sun Aug 03, 2014 5:18 pm
The 90 years per SNP is for the FGC SNP results. Is that right? One man in my group has 40 Big-Y SNPs under Z156.

Posts: 2443
Joined: Sun Mar 18, 2012 7:08 am
Location: Pisa (Italy)
YDNA:
R- Z2110 (KV7Y2)
MtDNA:
K1a1b1e/HQ176413
PostPosted: Sun Aug 03, 2014 8:17 pm
dartraighe wrote:The 90 years per SNP is for the FGC SNP results. Is that right? One man in my group has 40 Big-Y SNPs under Z156.


I think so, because he uses FGC SNPs, and 90 years for SNP is also more than we thought, and this is strange if said from MJost (perhaps you remember how I fought from years against the ideas of Nordtvedt and all the others, comprised Jost, and how I was treated by them).
But read the answer of George Chandler on Anthrogenica, that is what I would have said if I could write there.

Return to y-DNA Discussions

Who is online

Users browsing this forum: No registered users and 1 guest