Picton Y-DNA
STR and SNP
Testing and Research
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Y CHROMOSOME DNA TESTING
STR stands for short tandem repeat haplotypes. For example, kit B291 and B125 have allele values of 29 and 28 respectively at DYS389II. This is a difference of 1 (29-28= 1). Because this is the only difference in their Y-DNA12 profiles (haplotypes), their genetic distance is 1.
SNP markers: A single nucleotide polymorphism (SNP) is a change to a single nucleotide in a DNA sequence. The relative mutation rate for an SNP is extremely low. This makes them ideal for marking the history of the human genetic tree. SNPs are named with a letter code and a number. The letter indicates the lab or research team that discovered the SNP. The number indicates the order in which it was discovered. For example M173 is the 173rd SNP documented by the Human Population Genetics Laboratory at Stanford University, which uses the letter M
FTDNA have recently placed the next line update on their website.
https://blog.familytreedna.com/y-dna-haplotree-reaches-50000-branches/
We recommend that you test at Family Tree DNA for STR markers because we have an established Picton Project there and there is a discount involved. A DNA test will indicate if you belong to the Picton families from Pembrokeshire. Please help and contribute to our family knowledge pool by contacting us and sharing what information you know about your own Picton family connections. We have DNA results from some Picton families with origins other than Wales.
We strongly recommend also that you begin by testing your Y-DNA initially first for the 37 STR markers offered by FTDNA. An additional Deep Ancestry test for the SNP L46 at FTDNA; is an additional option if you have been tested at these STR markers. Picton families from Pembrokeshire should all tests positive for this SNP as the lowest downstream Haplogroup marker. At present this is the deepest SNP applicable to the Picton surname families of Welsh origin. If you test for this SNP, you can also join the R1b-U106/S21+ Project at FTDNA which is a Yahoo Groups Forum dedicated to discussion on the origins and downstream markers from this SNP. To view FTDNA
You may match the DNA of the Picton families from Wales if you match the two STRs shown below and your last name is Picton:
STR385b=13
YCAIIa=21
If your last name is not Picton, you must also test positive for the SNP L46.
Currently 11 members belonging to the Picton Surname Project show a connection to Wales. Three other members show a totally different origin of the surname and two members are connected to Wales according to the paper records, but this is not confirmed by their DNA test results.
Picton Y-DNA Research SNP Results
The PICTON Family DNA Haplogroup was R1b1b2a1a4 (ISOGG Tree, 2009)
and now is R1b1a2a1a1c2b1a1a1a (ISOGG Tree, 2014) or called R-L493 or R-L477
The Picton Family from Wales belong to the R1b Haplogroup and in addition test positive for the following SNPs:
U106/S21+, Z381+, L48+, L47+, L44+, L46+, L525+, L45+ and L493+
A Deep-R SNP subclade test for Owen Samuel Picton was made by Ethnoancestry and by Family Tree DNA (FTDNA). These tests showed the Picton families from Wales to be part of the R1b-M269 subclade called Haplogroup R1b-U106 (or R1b-U106/S21+). This was previously known as Haplogroup R1b1c9*, then Haplogroup R1b1b2g and then R1b1b2a1a*. A convenient way to describe these Haplogroups is just to use the last SNP marker which tests positive. On this basis the Picton Haplogroup is R-L493 or R-L477. An age estimate for the R-L48 ancestor is about 2661 BC (2199 BC - 1740 BC).
The Haplogroup SNP test results from FTDNA shows the Picton family tests positive for markers levels U106, Z381, L48, L47, L44, L46, L525, L45 and L493. The Picton family has a Haplogroup currently assigned as R-L493 or R-L477 because both test to the same lowest level. This Haplogroup designation may change when names are given for any new SNPs discovered. An evolving nomenclature is to name the Haplogroup after the last SNP in the descent tree. In this case it would be R-L493 or R-L477. If you are R-L493 then your are R-L477.
SNP discussion on L48, L47, L44, L46, L525, L45, and L493 or L477.
I, Owen Picton tests positive for the SNP’s L48, L47, L44, L46, L525, L45, and L493 or L477. The SNP L47 is a subclade to L48, L44 is a subclade to L47 and L46 is a subclade of L44 and so on down to the end. These SNP levels are similar to our surnames before surnames existed. Where were my male ancestors living at each of these different SNP levels? So far, besides myself, only about five other individuals, including Craig Venter have tested positive for all these SNPs down through all levels to SNP L493 or L477. Craig Venter goes one level lower to L292 and his group are generally regarded as playing a major role in the sequencing of the human genome (HUGO).
There is a greater GD (genetic distance) between us and also between those who are only L47+. This may mean that the founders for these SNP;s L48+ L47+ L44+ and L46+ all happen to live within a fairly short period of time to each other.
The GD from me for 3 of the L46+ people are:
- ysearch 3k37y has GD 20 out of 72 markers
- ysearch 6TYRN has GD 5 out of 25 markers
- ysearch EM5R3 has GD 16 out of 67 markers
Others from me who are only L47+:
- ysearch 28uta has GD 28 out of 67 markers
- ysearch 38jnr has 18 out of 67 markers
- ysearch ED28N has GD 24 out of 67 markers
- ysearch V2JBN has GD 24 out of 67 markers
To show how slow GD mutates from myself:
Another Picton (Dean A. Picton) has a GD of 6 out of 67 STR markers when tested at FTDNA. We match on 41 out of 43 markers when tested at DNA Heritage. An estimate based on paper documentation is that our common ancestor could be Jenkin Picton of Newport, Pembrokeshire, who lived almost 600 years ago in the early to mid-1400s. Another Picton family, who we can show by an established paper trail had a common ancestor with myself about 260 years ago has a match of 42 out of 43 markers when tested at DNA Heritage. This shows how slowly recent genetic changes have occurred, although this is a function of the markers selected.
Thus Dean Picton and myself have a GD of 5 when tested on the FTDNA 1-37 STR panel of markers and this only increases to 6 when markers 38-67 are added in. Markers with a high level of mutation rates include: DYS439, DYS464c, GATA A10, DYS576, CDYa and CDYb.
DNA markers of the Picton family
A comment about markers that are "DNA markers of the Picton family". Most or all Pictons share these DNA markers. These markers are separating the Picton family from others in this world. This genetic signature is like our surname.
Only the Picton family has the following criteria:
Must be L493+ or L477+ and have STR's:
DYS385b=13
YCAIIa=21
DYS481=21
No one else meets this criteria.
Markers of Owen Picton with some difference to other Picton's include:
STR439=13
CDYb=40
STR537=11
We sometimes differ on a number of other markers within the Picton family group but we all have L493.
Unique haplogroups are like a name which would tie you to a family before the time surnames became standardized. My own family can be traced back to a Philip Picton who lived around 1260 at Newport, Pembrokeshire, Wales. I have about 10 unique new SNP's which another L493 person named Hallatt does not have. It is estimated these unique SNP's occur about every 100 to 150 years. Other people with the last name Picton should also have some of these 10 unique new SNP's but those that are not in common should indicate when our common ancestor lived. There are L493 common ancestors back in an estimated time frame of about 1400 years ago in Continental Europe where the L493 founder lived (i.e. 600 A.D.). These few other L493 people with a different surname would be descendants from the same L493 common ancestor as the Picton's. Finally, if you are close to my STR pattern then I would encourage you to get a deep clade test performed to aid in determining the origin of the L48, L47, L44, L46, L45 and L493 founders.
New tests continue to be developed and used on the Picton Y-DNA
Our objective is to find new SNP's that may lie below or between our known SNP's markers. This would help segregate these markers even further. It will also be interesting to see how the Picton family compares to Craig Venter (who has had his entire DNA genome sequenced and is available online). We could even find a private Picton family SNP. We should know a lot more when various results become available on the various members of the R-L493 Haplogroup. We hope it will give when a SNP occurred, where they were living and what group of people they were with.
Picton Y DNA Research STR Results
A 67 Marker Genetic Sequence result for Owen Samuel Picton from Family Tree DNA using the DNA sample taken for the National Geographic Genographic Project in about 2006.
In addition, a 111 Marker result and GENO 2.0 test from National Geographic Genographic was done in 2013
Haplotype detail:
PANEL 1 (1-12)
DYS393: 13; DYS390: 23; DYS19: 14; DYS391: 10; DYS385a: 11; DYS385b: 13; DYS426: 12; DYS388: 12; DYS439: 13; DYS389-1: 13; DYS392: 13; DYS389-2: 29
PANEL 2 (13-25)
DYS458: 17; DYS459a: 9; DYS459b: 10; DYS455: 11; DYS454: 11; DYS447: 25; DYS437: 15; DYS448: 19; DYS449: 30; DYS464a: 15; DYS464b: 15; DYS464c: 17; DYS464d: 17
PANEL 3 (26-37)
DYS460: 11; DYSGATA H4: 11; DYSYCA II a: 21; DYSYCA II b: 23; DYS456: 15; DYS607: 15; DYS576: 18; DYS570: 17; DYSCDY a: 37; DYSCDY b: 40; DYS442: 13; DYS438: 12
PANEL 4 (38 - 47)
DYS531: 12; DYS578: 9; DYS395S1a: 16; DYS395S1b: 16; DYS590: 8; DYS537: 11; DYS641: 10; DYS472: 8; DYS406S1: 9; DYS511: 10
PANEL 4 (48 - 60)
DYS425: 12; DYS413a: 23; DYS413b: 23; DYS557: 16; DYS594: 10; DYS436: 12; DYS490: 12; DYS534: 15; DYS450: 8; DYS444: 12; DYS481: 21; DYS520: 20; DYS446: 13
PANEL 4 (61 - 67)
DYS617: 12; DYS568: 11; DYS487: 13; DYS572: 11; DYS640: 11; DYS492: 13; DYS565: 12
Haplotype detail:
A 43 Marker Genetic Sequence result for Owen Samuel Picton from DNA Heritage includes some of the above marker results plus markers below:
Additional DNA Heritage Haplotype details:
DYS425: 12; DYS461: 12; DYS462: 11; DYSA10: 15; DYS635: 23; DYS1B07: 1; DYS441: 15; DYS444: 12; DYS445: 12; DYS446: 13; DYS452: 30; DYS463: 24
I notice that the value for marker DYS442 is shown by DNA Heritage as 18 and by Family Tree DNA as 13. I talked to Family Tree DNA and they said they report the value as 5 less than DNA Heritage.
DNA Heritage records have been given to Family Tree DNA (FTDNA)
GATA-H4/TAGA-H4 - This marker is also called TAGA-H4 by DNA Heritage, Relative Genetics, and NIST, and called GATA-H4 by FTDNA. When the marker is reported as GATA-H4, its value is one less than when it is reported as TAGA-H4. Y-Search uses GATA-H4 and this will be used by the haplogroup predictor program also. If you have a value for TAGA-H4, then subtract one from the value before entering it in the Y-Search program. The reverse is true for "ybase" searches.
The above DYS389-2: is 29 by DNA Heritage but is 16 by the Genographic Project at National Geographic because for all DNA sites one must add ones results for 389-2 and 389-1 together and enter this as the total value for 389-2 which would be 29 for DYS389-2 except for the Genographic Project where DYS389-2 remains 16.
Then go down and select "Y-Search"
Then select "Search for genetic matches"
Then for my "Enter User ID" enter "HX838"
Then Click on "Search" and enter in how you want the search.
The Haplogroup is R1b
A 12 Marker Genetic Sequence result for Owen Samuel Picton from Genographic Project at National Geographic
Type: Y-Chromosome
Haplogroup: R1b (M343)
My 12 Marker STRs
What a 12 Marker exact match result means:
The 12 Marker result from the Y-chromosome test is called a Haplotype, and can help determine how common is ones DNA sample.
A 12 Marker exact match result to someone with the SAME surname, means there is a high probability that you are related.
The above DYS389-2: was 16 by the Genographic Project at National Geographic but when comparing to other DNA sites one must add ones results for 389-2 and 389-1 together and enter the total value for 389-2 which would be 29 for DYS389-2 when comparing to other sites. How to Interpret My Results
Above are results from the laboratory analysis of my Y-chromosome. My DNA was analyzed for Short Tandem Repeats (STRs), which are repeating segments of my genome that have a high mutation rate. The location on the Y chromosome of each of these markers is depicted in the image, with the number of repeats for each of your STRs presented to the right of the marker. For example, DYS19 is a repeat of TAGA, so if your DNA repeated that sequence 12 times at that location, it would appear: DYS19 12. Studying the combination of these STR lengths in your Y Chromosome allows researchers to place you in a haplogroup, which reveals the complex migratory journeys of your ancestors. Y-SNP: In the event that the analysis of your STRs was inconclusive, your Y chromosome was also tested for the presence of an informative Single Nucleotide Polymorphism (SNP). These are mutational changes in a single nucleotide base, and allow researchers to definitively place you in a genetic haplogroup.
One is most likely "NOT recently related" on a 12 marker exact match result to someone else who does not have the same surname. The term "NOT recently related", may mean a time frame between 1000 to 2000 years ago or more.
The likelihood that we are related is much greater on a 43 marker match than on a 12 marker match, when checking matches on 12, 25, 37 or 43 markers.
Dr. Luigi Lucca Cavalli-Sforza, Professor Emeritus, Stanford University, in his book: The Great Human Diasporas: The History of Diversity and Evolutions says that the total population of Europe was 60,000 people at the end of the last Ice Age, about 10,000 years ago. Europe now has a population of 300 million people.
So sometimes European people alive today will have a 12 marker match with other Europeans from before the time that our ancestors began using surnames. Matching someone with a different surname most likely means the connection is distant rather then recent.