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Thread: J-PF2254 or J-FGC33111?

  1. #1
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    J-PF2254 or J-FGC33111?

    I've recently completed a J-L24 SNP pack and received my results. FTDNA has marked me down as "J-FGC33111."
    Does anyone have any information on this SNP?
    The only thing I can find is at yfull, where it is listed as part of the SNPs that define J-PF2254. Does that mean I'm actually J-PF2254 or J-FGC33111?
    Furthermore, yfull has J-PF2254 as formed 13,600 years ago but the most recent ancestor is 2000 years ago. How is such a big discrepancy possible?
    Any extra information or input is appreciated

  2. #2
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    Quote Originally Posted by coffeeprince View Post
    I've recently completed a J-L24 SNP pack and received my results. FTDNA has marked me down as "J-FGC33111."
    Does anyone have any information on this SNP?
    The only thing I can find is at yfull, where it is listed as part of the SNPs that define J-PF2254. Does that mean I'm actually J-PF2254 or J-FGC33111?
    Furthermore, yfull has J-PF2254 as formed 13,600 years ago but the most recent ancestor is 2000 years ago. How is such a big discrepancy possible?
    Any extra information or input is appreciated
    https://www.yfull.com/faq/how-does-y...-tmrca-and-ci/
    YSEQ:#37; YFull: YF01405 (Y Elite 2013)
    WGS (Full Genomes Nov 2015, YSEQ Feb 2019, Dante Mar 2019, FGC-10X Linked Reads Apr 2019, Dante-Nanopore May 2019) - further WGS tests pending ;-)
    Ancestry GCs: Scots in central Scotland & Ulster, Ireland; English in Yorkshire & Pennines
    Hidden Content
    FBIMatch: A828783 (autosomal DNA) for segment matching DO NOT POST ADMIXTURE REPORTS USING MY KIT

  3. #3
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    I've read that before and I'm still not clear on it.

  4. #4
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    Quote Originally Posted by coffeeprince View Post
    I've read that before and I'm still not clear on it.
    Well the FAQ explains the calculation of both figures when read in conjunction with the flyover text on the branch you refer to.
    Glaring discrepancies often are due to insufficient samples distorting the sub-clade age.
    Your case is extreme but not uncommon in that there is only ONE sample used in the calculation which presumably you looked at?
    (since HG samples aren't good quality enough to use in the calcs - but you would have seen that when you looked at the branch age calculation notes). :-)
    YSEQ:#37; YFull: YF01405 (Y Elite 2013)
    WGS (Full Genomes Nov 2015, YSEQ Feb 2019, Dante Mar 2019, FGC-10X Linked Reads Apr 2019, Dante-Nanopore May 2019) - further WGS tests pending ;-)
    Ancestry GCs: Scots in central Scotland & Ulster, Ireland; English in Yorkshire & Pennines
    Hidden Content
    FBIMatch: A828783 (autosomal DNA) for segment matching DO NOT POST ADMIXTURE REPORTS USING MY KIT

  5. The Following User Says Thank You to MacUalraig For This Useful Post:

     coffeeprince (12-23-2018)

  6. #5
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    The FAQ says the SNPs in the flyover text are equivalent to the listed haplogroup, so... J-FGC33111 is actually J-PF2254 and therefore not downstream?

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