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which is a better match?

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  • which is a better match?

    What is a better/closer match - a Y-DNA67 Exact Match with 0 genetic distance, OR a Family Finder 4th-remote cousin with 40 shared centimorgans with a longest block of 12?

    The reason I ask is because I'm trying to trace a Paternal line for a relative of mine with a non-paternal event for his grandfather. When I compare the Y-DNA67 Exact Match with 0 genetic distance to the family finder 4th-remote cousin with 40cm longest block 12 - their common ancestors are around 10 generations back?!

    So which one is more likely to be a closer match to my guy that was tested?

  • #2
    Unless the Y-DNA haplogroup is a rare one, the Family Finder match is more significant.

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    • #3
      Ok - that makes sense. And that probably explains why those y-DNA matches didn't appear on the Family Finder.

      Thank You for your expertise!
      ~ Heidi

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      • #4
        Originally posted by Heidi View Post
        Ok - that makes sense. And that probably explains why those y-DNA matches didn't appear on the Family Finder.

        Thank You for your expertise!
        ~ Heidi
        Are you sure the Y-DNA 67 match with a genetic distance of zero has even taken the Family Finder test? Also what is the reason for your original question about the Family Finder match and what is this person's significance? The Y-DNA match could very well be of great significance, the Family Finder match sounds very weak as not much DNA is shared. Why are you trying to compare the two are they both Y-DNA matches?

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        • #5
          Even the experts do not have a good grasp on distant matching with autosomal. A Y-DNA match at (67,0) is something that you run with. Of course the autosomal DNA can help, but I would want to see where the Y-DNA goes.

          Besides if you go back 10 generations, you have 1024 lines. Even if you had a good match with autosomal DNA, the odds are against it being on the paternal line.

          Jack Wyatt
          Last edited by georgian1950; 29 August 2017, 12:54 PM. Reason: additional thoughts

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          • #6
            hard to say

            around 25% of 4th cousins will share no autosomal DNA segments...thus it is difficult to know , even 10% of third cousins will not have a matching segment.

            sharing 40cm of autosomal DNA could indicate a 5th cousin or 6th cousin...need to determine if the 67 marker match has taken done autosomal DNA testing..or if any of his close relatives have tested.

            I have a third cousin once removed match here (we share 30cm) and she does not match with my sister although my sister does match a segment with her Father (our third cousin). So a non-match on family finder could still be a fourth cousin or a third cousin once removed.

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            • #7
              Originally posted by travers View Post
              Are you sure the Y-DNA 67 match with a genetic distance of zero has even taken the Family Finder test? Also what is the reason for your original question about the Family Finder match and what is this person's significance? The Y-DNA match could very well be of great significance, the Family Finder match sounds very weak as not much DNA is shared. Why are you trying to compare the two are they both Y-DNA matches?
              There are three Y-DNA 67 matches with Genetic Distance of 0. Two of them have not taken Family Finder, but one of them has (but he doesn't show up on our Family Finder test results).

              I am trying to trace a paternal line & was trying to decide which is a stronger or closer match.

              Yes, the Y-DNA 67 led us to the previously unknown surname (which was great), but I would like to narrow it down to a more specific branch.

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              • #8
                Originally posted by J Honeychuck View Post
                Unless the Y-DNA haplogroup is a rare one, the Family Finder match is more significant.

                The Haplogroup is R-M269 - I think it's a very common one?

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                • #9
                  Originally posted by georgian1950 View Post
                  Even the experts do not have a good grasp on distant matching with autosomal. A Y-DNA match at (67,0) is something that you run with. Of course the autosomal DNA can help, but I would want to see where the Y-DNA goes.

                  Besides if you go back 10 generations, you have 1024 lines. Even if you had a good match with autosomal DNA, the odds are against it being on the paternal line.

                  Jack Wyatt
                  Yes, we were very excited initially to have 3 Y-DNA matches at (67,0) - but they are not responding to my emails & I can't view their family trees.

                  So we opted for the Family Finder test & got back 1665 matches, but only 2 of them contain the Surname we are trying trace.

                  2 of those Y-DNA matches at (67,0) haven't taken the Family Finder. 1 of the Y-DNA matches at (67,0) has taken the Family Finder, but isn't showing up on our results.

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