Practically everything I can find on the Big Y involves how to work with SNPs and sometimes how to use SNPs in combination with STRs to identify someone's ancestry. I also find a number of websites that say one can use the Y700 to determine which son of an ancestor someone descends from.
The latter is what I'm interested in doing. I keep up with about 35 or so individuals who mostly have tested at 37/67 markers who descend from a common ancestor who for me is 9 generations back and lived from ~1680 to 1762. He had 5 proven sons. Of those five sons, four are VERY well documented and there is little doubt (to me) that these four had any more sons that what I've already ID'd over the past 20 years. The 5th is very much undocumented although I believe one to three of his sons moved in a certain direction that the other families did not. I believe some of our group descend from this branch. I also postulate there was a 6th son of our MRCA from whom several individuals have tested to 67 or 111 markers. On top of that there are still a small number of others that I can't accurately place in our at-large tree.
So, there are several people in the 35 or so of us that we can't exactly fit into our extended family tree but based on a number of factors I'm certain that we all descend from the man who lived ~1680 to 1762.
Although all of us do have a "family marker" on one STR that no one else in our haplogroup has (last time I checked anyway) I still have not found any specific markers through 111 that can reliably say any specific person descends from any specific son of our MRCA.
To attempt to do this do I just use the Y700 for the STR markers and not deal with the SNPs? Or, as I (hopefully) get people to upgrade will our SNPs get more finely tuned? Right now there is only one other person in our group who has done the Big Y and the Block Tree shows our common SNP is 28 SNP generations back. We are much, much more closely related than that. Will getting more people tested reduce that number? I can't seem to find anything specific on how to try to ID lines of descent from a known ancestor or examples of people who have done something similar.
The latter is what I'm interested in doing. I keep up with about 35 or so individuals who mostly have tested at 37/67 markers who descend from a common ancestor who for me is 9 generations back and lived from ~1680 to 1762. He had 5 proven sons. Of those five sons, four are VERY well documented and there is little doubt (to me) that these four had any more sons that what I've already ID'd over the past 20 years. The 5th is very much undocumented although I believe one to three of his sons moved in a certain direction that the other families did not. I believe some of our group descend from this branch. I also postulate there was a 6th son of our MRCA from whom several individuals have tested to 67 or 111 markers. On top of that there are still a small number of others that I can't accurately place in our at-large tree.
So, there are several people in the 35 or so of us that we can't exactly fit into our extended family tree but based on a number of factors I'm certain that we all descend from the man who lived ~1680 to 1762.
Although all of us do have a "family marker" on one STR that no one else in our haplogroup has (last time I checked anyway) I still have not found any specific markers through 111 that can reliably say any specific person descends from any specific son of our MRCA.
To attempt to do this do I just use the Y700 for the STR markers and not deal with the SNPs? Or, as I (hopefully) get people to upgrade will our SNPs get more finely tuned? Right now there is only one other person in our group who has done the Big Y and the Block Tree shows our common SNP is 28 SNP generations back. We are much, much more closely related than that. Will getting more people tested reduce that number? I can't seem to find anything specific on how to try to ID lines of descent from a known ancestor or examples of people who have done something similar.
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