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Thread: How do MyHeritage's and 23andme's criteria for the Ashkenazi category differ?

  1. #21
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    Quote Originally Posted by Claudio View Post
    If anything the fact that both of you are sharing segments at this low threshold probably is an indication of having shared ancient Aegean Admixture.
    And if we had reached the magical 7cm?
    הִנְנִי֩ מֵבִ֨יא אוֹתָ֜ם מֵאֶ֣רֶץ צָפ֗וֹן

    Jeremiah 31

  2. #22
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    Quote Originally Posted by StillWater View Post
    And if we had reached the magical 7cm?
    Probably real.
    23andMe for instance are also set with a 7cm minimum threshold as they do not consider lower CM matches to be legitimate.
    Like I said earlier Gedmatch set there default setting at 7cm for a reason.

  3. #23
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    Quote Originally Posted by Claudio View Post
    Probably real.
    23andMe for instance are also set with a 7cm minimum threshold as they do not consider lower CM matches to be legitimate.
    Like I said earlier Gedmatch set there default setting at 7cm for a reason.
    What do you mean by "real"? Do you mean recently shared ancestry?
    הִנְנִי֩ מֵבִ֨יא אוֹתָ֜ם מֵאֶ֣רֶץ צָפ֗וֹן

    Jeremiah 31

  4. #24
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    Quote Originally Posted by StillWater View Post
    What do you mean by "real"? Do you mean recently shared ancestry?
    Yes.
    65F07E63-2FEE-4653-A74A-D29DEB3141DD.jpeg lol
    But as far as the MRCA estimate it’s only an estimate.
    I’ve been told in the past that the MRCA estimate can be more in accurate when it is shared segments between people of different Jewish groups as endogamy can skew if the timing of the MRCA estimate.
    Last edited by Claudio; 08-04-2019 at 08:52 PM.

  5. #25
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    Quote Originally Posted by Claudio View Post
    Yes.
    65F07E63-2FEE-4653-A74A-D29DEB3141DD.jpeg lol
    But as far as the MRCA estimate it’s only an estimate.
    I’ve been told in the past that the MRCA estimate can be more in accurate when it is shared segments between people of different Jewish groups as endogamy can skew if the timing of the MRCA estimate.
    This is true within Jewish groups, but should be fine between individuals of different Jewish sub-ethnicities, especially if one is from the Western cluster and the other is from the Eastern cluster.
    הִנְנִי֩ מֵבִ֨יא אוֹתָ֜ם מֵאֶ֣רֶץ צָפ֗וֹן

    Jeremiah 31

  6. #26
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    Quote Originally Posted by StillWater View Post
    This is true within Jewish groups, but should be fine between individuals of different Jewish sub-ethnicities, especially if one is from the Western cluster and the other is from the Eastern cluster.
    Yes I was more pretaining to Western Jewish groups.

    So technically the 7cm Iranian matches you have are legit and could be from a shared Mizrahi ancestor.
    What was the MRCA on those Iranian matches?

  7. #27
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    Quote Originally Posted by Claudio View Post
    Yes I was more pretaining to Western Jewish groups.

    So technically the 7cm Iranian matches you have are legit and could be from a shared Mizrahi ancestor.
    What was the MRCA on those Iranian matches?
    I don't remember getting 7cm on Iranian matches, but I did get them on Mizrachi (Iraqi Jewish etc) matches. The MRCA estimates ranged from 6-7.5 gen.
    הִנְנִי֩ מֵבִ֨יא אוֹתָ֜ם מֵאֶ֣רֶץ צָפ֗וֹן

    Jeremiah 31

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     Claudio (08-04-2019)

  9. #28
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    Quote Originally Posted by StillWater View Post
    I don't remember getting 7cm on Iranian matches, but I did get them on Mizrachi (Iraqi Jewish etc) matches. The MRCA estimates ranged from 6-7.5 gen.
    I think a generation is roughly on average 25years.
    So your probably looking at 200/250 year back,either they share Ashkenazi ancestor or you share Mizrahi ancestor.
    Is there any history of Mizrahi/Ashkenazi intermarriage in Eastern Europe in last 200/250 years?
    or do you think your having elevated west Asian is from much further back in time acquired Mizrahi ancestry?

  10. #29
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    Quote Originally Posted by Claudio View Post
    I think a generation is roughly on average 25years.
    So your probably looking at 200/250 year back,either they share Ashkenazi ancestor or you share Mizrahi ancestor.
    Is there any history of Mizrahi/Ashkenazi intermarriage in Eastern Europe in last 200/250 years?
    or do you think your having elevated west Asian is from much further back in time acquired Mizrahi ancestry?
    It is said that Mizrachim migrated to one of my ancestral towns during the 1800's, but I'm skeptical of the story for a number of obvious reasons. However, documents apparently exist attesting to it. Also, we don't know if the segment is IBS or IBD. That aside, I don't entirely trust Gedmatch's MRCA estimates. I'm betting it's further back. As far as elevated West Asian, mine is. Whereas, my sister's seems far outside the typical Ashkenazi range. However, it may be from another Western Jewish source.
    הִנְנִי֩ מֵבִ֨יא אוֹתָ֜ם מֵאֶ֣רֶץ צָפ֗וֹן

    Jeremiah 31

  11. The Following User Says Thank You to StillWater For This Useful Post:

     Claudio (08-04-2019)

  12. #30
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    edit: wrong thread.
    Last edited by StillWater; 08-04-2019 at 11:50 PM.
    הִנְנִי֩ מֵבִ֨יא אוֹתָ֜ם מֵאֶ֣רֶץ צָפ֗וֹן

    Jeremiah 31

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