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Thread: Big Y match?

  1. #1
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    Big Y match?

    so I got an email from a fellow that said Big Y says we matched on 'SNP is 26,306.'

    anyone have any clue what that one is, or could mean?

    Evidently the fellow is African American who has run into the 'slave wall' when researching his genealogy in the US southern states

    ...I have no known or likely connection to any y lines from the southern states as I can trace my Y line directly back to Ireland, and from Ireland to Canada in the early 1800's

    so, I don't know if this is some way ancient sort of snp or what, and the fellow is pretty new to this all....

    any advice would be helpful

    thanks

    Mike
    Furthest Y line=Patrick Whealen 1816-1874, b.Tipperary Co. Ire. d. Kincardine Ont.

    Y-DNA-RL21-L513-Z23516-BY11142('lost Irish 'C' boys?')

    FTDNA=P312+ P25+ M343+ M269+ M207+ M173+ L513+ U198- U152- U106- SRY2627- P66- P107- M73- M65- M37- M222- M18- M160- M153- M126- L705- L577- L193- L159.2- L1333-
    Big-Y=Z23516+
    23&me=L21+
    E.A.= S21-, S26-, S28-, S29-, S68-
    Geno 2 (N.G.P.) H1bd+

    Whalen/Phelan DNA Surname Project
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     paulgill (10-27-2015)

  3. #2
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    FTDNA BigY matches have almost no value.
    Y-DNA: R-Y14088 (ISOGG: R1b1a1a2a1a2b1c2b1a1a)
    mtDNA: J1c1i (J1c1 + 7735G and 8848C) Extras: 198T 12007A 16422C 16431A

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     paulgill (10-27-2015),  rod (10-27-2015),  Táltos (10-27-2015)

  5. #3
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    Hi Mike,

    I believe I've been corresponding with the same person-- a very nice fellow he is, too. I've pointed him towards Mike Walsh and suggested he join the R-L21 and Subclades Project as he seems to be positive for R-L21 and DF13. He matches me on both of these but not on DF49, so our shared ancestor is very ancient indeed.

    I don't know how closely matched he is to you, variant-wise, but if you do share a more recent ancestor it could have been a distant cousin who emigrated to the States from Ireland. It's possible that the link is a more ancient one as well (like mine). Either way, I hope he's able to make some kind of connection with someone, even if it's a regional one.

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  7. #4
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    Quote Originally Posted by Petr View Post
    FTDNA BigY matches have almost no value.
    I think they have value. The trick with Big-Y matches is filtering the results to include only your own subclade and then pairing the results with higher level STR matches. This isn't enough on its own, but it gives you a clear direction for further analysis.

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  9. #5
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    thanks David...I suspect its quite ancient but that is just a guess
    Mike WWW sure is a great contact, I hope he makes it-that will give him a ton of info

    Mike


    Quote Originally Posted by David Mc View Post
    Hi Mike,

    I believe I've been corresponding with the same person-- a very nice fellow he is, too. I've pointed him towards Mike Walsh and suggested he join the R-L21 and Subclades Project as he seems to be positive for R-L21 and DF13. He matches me on both of these but not on DF49, so our shared ancestor is very ancient indeed.

    I don't know how closely matched he is to you, variant-wise, but if you do share a more recent ancestor it could have been a distant cousin who emigrated to the States from Ireland. It's possible that the link is a more ancient one as well (like mine). Either way, I hope he's able to make some kind of connection with someone, even if it's a regional one.
    Furthest Y line=Patrick Whealen 1816-1874, b.Tipperary Co. Ire. d. Kincardine Ont.

    Y-DNA-RL21-L513-Z23516-BY11142('lost Irish 'C' boys?')

    FTDNA=P312+ P25+ M343+ M269+ M207+ M173+ L513+ U198- U152- U106- SRY2627- P66- P107- M73- M65- M37- M222- M18- M160- M153- M126- L705- L577- L193- L159.2- L1333-
    Big-Y=Z23516+
    23&me=L21+
    E.A.= S21-, S26-, S28-, S29-, S68-
    Geno 2 (N.G.P.) H1bd+

    Whalen/Phelan DNA Surname Project
    Hidden Content

  10. The Following 3 Users Say Thank You to MikeWhalen For This Useful Post:

     David Mc (10-27-2015),  paulgill (10-27-2015),  Táltos (10-27-2015)

  11. #6
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    I agree that further filtering of the results may help.
    Y-DNA: R-Y14088 (ISOGG: R1b1a1a2a1a2b1c2b1a1a)
    mtDNA: J1c1i (J1c1 + 7735G and 8848C) Extras: 198T 12007A 16422C 16431A

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     David Mc (10-27-2015)

  13. #7
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    The top of the Shared Novel Variants list is useless, or largely so; but if you scroll to the bottom, and have a match with one to four people (or thereabouts), most of them are real; and if so, very useful indeed. As you go up the list (novel variants shared by ten, or forty, or lots of guys) look at the next column to the right and you'll notice that they also have SNPs marking some haplogroup that you know you aren't in. So those are probably highly recurrent -- or completely bogus, or shared with the mountain gorilla and all your mutual kin.

    Like the 26,000 at the top of the list.

  14. The Following 3 Users Say Thank You to razyn For This Useful Post:

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  15. #8
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    rayzn-thanks for the heads up, I will check that out...but I think your conclusion is exactly correct, mountain gorilla's or sloths or toads or some such

    Mike
    Furthest Y line=Patrick Whealen 1816-1874, b.Tipperary Co. Ire. d. Kincardine Ont.

    Y-DNA-RL21-L513-Z23516-BY11142('lost Irish 'C' boys?')

    FTDNA=P312+ P25+ M343+ M269+ M207+ M173+ L513+ U198- U152- U106- SRY2627- P66- P107- M73- M65- M37- M222- M18- M160- M153- M126- L705- L577- L193- L159.2- L1333-
    Big-Y=Z23516+
    23&me=L21+
    E.A.= S21-, S26-, S28-, S29-, S68-
    Geno 2 (N.G.P.) H1bd+

    Whalen/Phelan DNA Surname Project
    Hidden Content

  16. #9
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    Quote Originally Posted by razyn View Post
    The top of the Shared Novel Variants list is useless, or largely so; but if you scroll to the bottom, and have a match with one to four people (or thereabouts), most of them are real; and if so, very useful indeed. As you go up the list (novel variants shared by ten, or forty, or lots of guys) look at the next column to the right and you'll notice that they also have SNPs marking some haplogroup that you know you aren't in. So those are probably highly recurrent -- or completely bogus, or shared with the mountain gorilla and all your mutual kin.

    Like the 26,000 at the top of the list.
    In my case, when I've filtered out all non-DF49 matches I am left with a grand total of 34. Some of these are more closely related than others, looking at the PhyloTree, but they are fairy evenly spaced out from one another. But then there aren't a lot of DF49xDF23 who have tested yet, so it's all fairly (ahem) "relative."

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  18. #10
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    FTDNA has a new pop-up window which shows which SNPS which are now novel between your results and someone else on your Big-Y match list. More useful than before. I have not evaluated it to see how many crappy region calls are still left.

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