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X Chromosome

X24 MOM
X24 MOM ✭✭✭
December 29, 2020 edited July 22, 2024 in Family Tree
X Chromosome

What is the deal with X matches at FTDNA? (i am female) Will researching my X matches at FTDNA help me find paternal ancestors?​ @Genetic Genealogy Research​ 

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  • surmonk1.5636508514297625E12
    surmonk1.5636508514297625E12 ✭
    January 3, 2021 Answer ✓

    To answer you question directly - maybe. There is a particular pattern of whom you can inherit X-DNA from (all maternal), and the amount needs to be significant enough to be useful - just like atDNA. X-DNA matches are more difficult to use, but can be useful in combination with autosomal DNA (atDNA), and can help you narrow down which line the test taker might be from. Here is the official ISOGG article (https://isogg.org/wiki/X-chromosome_testing), and one of the other more layperson articles is referenced: (https://www.legacytree.com/blog/x-dna-autosomal-dna-inheritance-paths:). And as part of another article, here's a chart of X-DNA inheritance: https://thegeneticgenealogist.com/2008/12/21/unlocking-the-genealogical-secrets-of-the-x-chromosome.

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Answers

  • Anitra Whittle
    Anitra Whittle ✭✭✭
    December 30, 2020

    Hello X24mom,

    I don't really know. Here is the FamilySearch Help information:

    https://www.familysearch.org/help/helpcenter/dna-help-center

    Probably not helpful. :(

     

    I went on my FamilyTreeDNA.com. I don't understand it. Anyway, I took the autosomal test as I knew who my mDNA and yDNA were.

    So I only get general matches to cousins. Same with my ancestry test.

    Good luck.

    There must be someone here who knows about DNA.

    Anitra

     

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  • X24 MOM
    X24 MOM ✭✭✭
    January 4, 2021

    Ty @Anitra Whittle​ 😊 I get so confused with trying to use FTDNA also.. and gedmatch, living.dna, and pretty much all the rest of them 🤣 another user here has been super helpful in helping me narrow down the possible birth family/ancestors of my adopted paternal grandparents ... I just get so lost in trying to make sense of it all 🤣

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  • X24 MOM
    X24 MOM ✭✭✭
    January 4, 2021

    Ty @Fearer Mark​ i will check that out! For some reason I thought x dna was a paternal thing? I’m searching for my fathers adopted parents (his mother and father both were adopted) bio family and was hoping the xdna matches at FTDNA would help me sort some of this stuff out. Ty for the info! I’ll let you know how I make out:)

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