Having discussed the concept of the most recent common ancestor, and presented my JONES family genealogy and DNA results, I thought it might be helpful to try and put it all together. If you were to match my pattern of DNA, you can then follow the line up as outlined.
For anyone who has a 67/67 marker match, this would suggest that we share my 6th generation grandfather Thomas Jones (JY-6). He was born 1796 in Virginia, and came to Kentucky with his family in 1811. He did have a bunch of brothers (at least six) so there is a lot of this Y-chromosome going around.
A 37/37 exact match would go back to my 7th generation grandfather, Nicholas Jones (JX-33) who was the father of Thomas (JY-6). He was born 1762 in Caroline Co., Virginia, fought in the Revolutionary War, and brought his family to Kentucky in 1811. Not much difference in a 67/67 match, and the 37/37 exact match.
The 25/25 exact match goes back to my 13th generation grandfather Thomas Jones (JR-180) of Llanfair-Dyffry-Clwyd, Denbighsire, Wales. He was active during the 1550s, being a student at Christ Church, Oxford, 1555. The family moved to Rochcester around 1598, and brought its Y-chromosome to the county of Kent.
A 12/12 exact match launches us back to my 29th generation grandfather Ynyn ap Gadforch (JB-1). He was active 850-900 AD, being the father of Tudor Trevor (JC-1). This branch of the family had been settled along Wat's Dyke for many generations.
So there you have our most recent common ancestors, all lined up. North Wales, to the county Kent, to the shores of Virginia, to the Bluegrass of Kentucky. Any matches?
Monday, June 13, 2011
Thursday, June 9, 2011
Tag Your It
Recent changes in the classifications of my haplotype, R1b1b to R1b1a2, made for some interesting additional questions. What in the world does this mean!?...was the first. I had spent a fair amount of time shifting through the data on R1b1b. It pointed me to Wales. What does this change do?
The International Society of Genetic Genealogy (ISOGG) and Family Tree DNA (FTDNA) seemed to have a slightly different view. Apparently it was FTDNA that first made the changes in their haplotype classification. [Where I had my DNA tested.] This was based upon the identification (clarification) of a specific sub-group [called "sub-clade"] of R1b. This sub-group demonstrated (dominated by) a specific genetic marker tagged R-m412. It was found on those who carried the R1b1b marker tagged R-m269. This sub-group [sub-clade ] was found in Wales 92.3 % of the 65 people studied! Wow, I made it home! This change in classification showed that my genealogy work of more than 50 years was again supported. My genes exposed. Another change is possible before all this gets straighten out. Tag your it!
The International Society of Genetic Genealogy (ISOGG) and Family Tree DNA (FTDNA) seemed to have a slightly different view. Apparently it was FTDNA that first made the changes in their haplotype classification. [Where I had my DNA tested.] This was based upon the identification (clarification) of a specific sub-group [called "sub-clade"] of R1b. This sub-group demonstrated (dominated by) a specific genetic marker tagged R-m412. It was found on those who carried the R1b1b marker tagged R-m269. This sub-group [sub-clade ] was found in Wales 92.3 % of the 65 people studied! Wow, I made it home! This change in classification showed that my genealogy work of more than 50 years was again supported. My genes exposed. Another change is possible before all this gets straighten out. Tag your it!
Sunday, June 5, 2011
Most Recent Common Ancestor (MRCA)
Come one, come all. Get your DNA done! A 12-marker..., 25-marker..., 37-marker..., or even a 67-marker marker match is magic and magnificent! [Even more markers are now available.] Put your money down, spin the wheel, and find your ancestors. Its easy! Its fun! Step right up!So goes the buzz. The DNA dimension of genealogy has exploded upon the stage. The problem is, many of the DNA products do not explain what the results will show until you have done the testing. How much money do you want to spend? How many markers should you do? Who are my ancestors anyway? Will I find my long lost relatives?
The chart to the right tries to show approximately what the DNA tests results demonstrate. For a 12-marker test, an exact match shows that you would share a common ancestor some 29 generations past. [Using 35 years/generation would be roughly 1015 years] Wow, I share, with my matches, a common ancestor some 1,000 years ago. Now if you have an exact 25-marker test, you would share a common ancestor some 13 generations ago. Let's see, that would bring you to (13 x 35) 455 years ago. This cuts in half the number of years from our common ancestor. Humm...a 37-marker exact match would place our common ancestor 7 generations back. Wow, only (7 x 35) 245 years. Just about the close of the French and Indian War in America. Now an exact 67-marker test would place our common ancestor just 6 generations back. That is roughly 210 years. (6 x 35) Wow, that is around 1800. At least some census data exist for most of the states. So, not much difference between the 37-marker and 67-marker tests. [Except for the money.]
So there you have it. [Plus or minus 5%.] A 67-marker test (exact match) can bring you to 1800. Step right up.
Wednesday, June 1, 2011
Where in the World?
My Jones surname DNA had 26 exact 12 marker matches. Where in the world are they? An exact 12 marker test showed that our most recent common ancestor (MRCA) was some 29 generations ago! [95% chance] Who in this world has their genealogy traced back 29 generations?
Being an exception to the rule, my years of genealogy research [now 51 years], has traced my family's line back 53 generations. Given in a series of previous posts, starting with "The Beginnings (generations 1-5)" [March 23, 2011] and ending with "Finally There (generation 45 - "Pap paw" [April 29, 2011], the generations are presented. My 29th generation grandfather is Ynyr ap Gadforch (JB-1). This would take our common ancestor back to around 900 A.D.! He was the father of Tudor Trevor (JC- 1) who is given credit for "founding" our tribe.
Of the 26 exact 12 marker test the following was found:
Scotland = 5 matches
England = 4 matches
Germany = 3 matches
France, Ireland, Netherlands, Turkey, United Kingdom = 2 match each
Wales, Ukraine, Slovakia, and Albania = 1 match each.
Wow, what a number of countries that share my 12 marker test. Ynyr ap Gadforch descendants sure got around!
Now there were many, many more who matched 11/12 markers. This would go back to generation 47. In my family tree this would be Enid (Jq-1) going back to the early days of Roman occupation! [ca. 150 - 200 A.D.] From this ancestor, there were 168 "1-step" in Ireland, 156 in England, 122 in Scotland, 88 United Kingdom, 66 Germany, 36 Netherlands, 36 France, 22 Wales, 19 Spain, 13 Italy, and 11 Switzerland.
My R1b1b2 [now classified R1b1a2]...it is definitely in the world.
Being an exception to the rule, my years of genealogy research [now 51 years], has traced my family's line back 53 generations. Given in a series of previous posts, starting with "The Beginnings (generations 1-5)" [March 23, 2011] and ending with "Finally There (generation 45 - "Pap paw" [April 29, 2011], the generations are presented. My 29th generation grandfather is Ynyr ap Gadforch (JB-1). This would take our common ancestor back to around 900 A.D.! He was the father of Tudor Trevor (JC- 1) who is given credit for "founding" our tribe.
Of the 26 exact 12 marker test the following was found:
Scotland = 5 matches
England = 4 matches
Germany = 3 matches
France, Ireland, Netherlands, Turkey, United Kingdom = 2 match each
Wales, Ukraine, Slovakia, and Albania = 1 match each.
Wow, what a number of countries that share my 12 marker test. Ynyr ap Gadforch descendants sure got around!
Now there were many, many more who matched 11/12 markers. This would go back to generation 47. In my family tree this would be Enid (Jq-1) going back to the early days of Roman occupation! [ca. 150 - 200 A.D.] From this ancestor, there were 168 "1-step" in Ireland, 156 in England, 122 in Scotland, 88 United Kingdom, 66 Germany, 36 Netherlands, 36 France, 22 Wales, 19 Spain, 13 Italy, and 11 Switzerland.
My R1b1b2 [now classified R1b1a2]...it is definitely in the world.
Friday, May 20, 2011
Those Other Jones
An additional 275 individuals were participating in the JONES surname DNA group that I had joined. Only two of these matched my 12 marker Panel! What in the world...at least the genealogy world? If we all came from a common ancestor [the first "Adam" Jones], why did not more of us match at the 12 marker testing?
The first question was what was the haplogroups that all these JONES belong? I abstracted the following :
Of the 275 individuals who had joined the Jones surname group, 235 had haplogroups listed. Of these, 209 [76%] were R1b1! [At least most of us shared a common haplogroup.]
The remaining haplogroups were: R1a = 2%, I = 11%, E = 6%, G = 3%, J = 2% and Q = 1/235. Thus, haplogroup R [R1b and R1a] made up 78% of us in the group. Haplogroup I [Scandinavian] were 11%. Haplogroup E were 6% [Central Africa]. Haplogroup G were 3% [Asia Minor]. Halogroup J were 2%. [Middle East]. Only one individual was haplogroup Q [Native American].
To compare this to Wales! [for haplogroup distribution.]
JONES - R1b 76 % I1 - 11% G - 3% E - 6% R1a - 2% J - 2%
WALES- R1b 82% I1 - 6% G - 4% E - 2% R1a - 2% J - 1.5% I2b - 1% T - 1%.
Wow, pretty good match! More to come.
The first question was what was the haplogroups that all these JONES belong? I abstracted the following :
Of the 275 individuals who had joined the Jones surname group, 235 had haplogroups listed. Of these, 209 [76%] were R1b1! [At least most of us shared a common haplogroup.]
The remaining haplogroups were: R1a = 2%, I = 11%, E = 6%, G = 3%, J = 2% and Q = 1/235. Thus, haplogroup R [R1b and R1a] made up 78% of us in the group. Haplogroup I [Scandinavian] were 11%. Haplogroup E were 6% [Central Africa]. Haplogroup G were 3% [Asia Minor]. Halogroup J were 2%. [Middle East]. Only one individual was haplogroup Q [Native American].
To compare this to Wales! [for haplogroup distribution.]
JONES - R1b 76 % I1 - 11% G - 3% E - 6% R1a - 2% J - 2%
WALES- R1b 82% I1 - 6% G - 4% E - 2% R1a - 2% J - 1.5% I2b - 1% T - 1%.
Wow, pretty good match! More to come.
Monday, May 16, 2011
Markers, Markers, and more Markers
Panel 4 [38-67] returned. A lot more numbers; Alleles, DYS#, and Locus were all over the place. Now what? No exact matches. A bunch of numbers all in a row. Let's see if one can sort this all out.
As best as I understand it, my DNA to 67 markers is uniquely mine. The first 12 markers [Panel 1] showed that there were 26 others that had an exact match with mine, and one person was off 1 marker. [11/12 match]. Of the 26, only two were JONES! Panel 2 [markers 13-25] showed only three folks who almost matched. Two with 24/25 and one with 23/25. The two Joneses hung in there, and only a Person remained. By Panel 3 [ 26-37 markers], only one Jones remained at 35/37 markers. By my Panel 4 [38-67], all folks had left the building. Now what does all this mean?
One Jones, matched 11/12 showed that we shared a common ancestor some 47 generations ago. [95% probability]. The exact match at 12/12 brought this down to generation 29. A pretty good move. An exact 25/25 match would bring the generation down to 13, but only two matched at 24/25, and one matched 23/25. The best here is for a Jones and Person going back 20 generations. The one Jones that matched 23/25 would go back to generation 27. By Panel 3, only one Jones remained, showing a 35/37 match bring us down to the 14th generation. If I had an exact match on the 67 markers, it would show that our most recent common ancestor was 6 generations back! Wow, after all this, I could only go 6 generations back. As it stands now, those sharing their DNA information that matches my Jones family goes back 12 - 14 generations.
For the genealogist, I give the following figures as an estimate of how to use the DNA panel results:
12/12 exact match would go back 29 generations [95%], 23 generations for 90 %.
25/25 exact match would go back 13 generations [95%], 10 generations for 90%.
37/37 exact match would go back 7 generations [95%], 5 generations for 90%.
67/67 exact match would go back 6 generations [95%], 4 generations for 90%.
My haplogroup is R1b. My haplotype is R1b1a2.
Now what about all those other Joneses who did not match? More to come.
As best as I understand it, my DNA to 67 markers is uniquely mine. The first 12 markers [Panel 1] showed that there were 26 others that had an exact match with mine, and one person was off 1 marker. [11/12 match]. Of the 26, only two were JONES! Panel 2 [markers 13-25] showed only three folks who almost matched. Two with 24/25 and one with 23/25. The two Joneses hung in there, and only a Person remained. By Panel 3 [ 26-37 markers], only one Jones remained at 35/37 markers. By my Panel 4 [38-67], all folks had left the building. Now what does all this mean?
One Jones, matched 11/12 showed that we shared a common ancestor some 47 generations ago. [95% probability]. The exact match at 12/12 brought this down to generation 29. A pretty good move. An exact 25/25 match would bring the generation down to 13, but only two matched at 24/25, and one matched 23/25. The best here is for a Jones and Person going back 20 generations. The one Jones that matched 23/25 would go back to generation 27. By Panel 3, only one Jones remained, showing a 35/37 match bring us down to the 14th generation. If I had an exact match on the 67 markers, it would show that our most recent common ancestor was 6 generations back! Wow, after all this, I could only go 6 generations back. As it stands now, those sharing their DNA information that matches my Jones family goes back 12 - 14 generations.
For the genealogist, I give the following figures as an estimate of how to use the DNA panel results:
12/12 exact match would go back 29 generations [95%], 23 generations for 90 %.
25/25 exact match would go back 13 generations [95%], 10 generations for 90%.
37/37 exact match would go back 7 generations [95%], 5 generations for 90%.
67/67 exact match would go back 6 generations [95%], 4 generations for 90%.
My haplogroup is R1b. My haplotype is R1b1a2.
Now what about all those other Joneses who did not match? More to come.
Wednesday, May 11, 2011
The Next Panels
In a short time, results for panel 2 [13-25 markers] and panel 3 [26 -37 markers] returned. A whole lot of numbers flashed before my eyes. There were no exact matches for this set of DNA markers. Only two matches were found at a "Genetic Distance - 1", and only one match for a "Genetic Distance -2". This meaning that for two folks in this data base, they have 24 out 25 matches [for genetic distance one], and one has 23 out of 25 sites match. Only Jones and Pearson remained from the first twelve marker test.
As I read the probability graphs sent with this information, it would appear that my "Genetic Distance - 1" folks had a 95% chance that we shared a grandfather back to 16 - 20 generations. This moved us closer by 4 - 8 generations. Still, not many folks would have their genealogy back 16 generations. For the "Genetic Distance - 2" it would means a 95% chance that we had a common ancestor at the 23 - 27 generation back. Essentially this was no difference from the 12-marker exact matches! What was one to do? Perhaps the last panels would help, but the light in the tunnel was fading. What about the rest of the testing, panel 4, markers 38 - 67? Time will tell.
My results for panel 2 and panel 3 are available to anyone who would like to compare results. Please leave a comment with an e-mail and we can share results.
As I read the probability graphs sent with this information, it would appear that my "Genetic Distance - 1" folks had a 95% chance that we shared a grandfather back to 16 - 20 generations. This moved us closer by 4 - 8 generations. Still, not many folks would have their genealogy back 16 generations. For the "Genetic Distance - 2" it would means a 95% chance that we had a common ancestor at the 23 - 27 generation back. Essentially this was no difference from the 12-marker exact matches! What was one to do? Perhaps the last panels would help, but the light in the tunnel was fading. What about the rest of the testing, panel 4, markers 38 - 67? Time will tell.
My results for panel 2 and panel 3 are available to anyone who would like to compare results. Please leave a comment with an e-mail and we can share results.
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