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My Origins Ashkenazi Jewish

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  • ffhound
    replied
    Originally posted by khazaria View Post

    Just a warning that I don't want to get bogged down into this "Am I Jewish?" question with everybody like people seem to expect on Gedmatch which I am quickly tiring of. I posted general parameters for what I have seen by analyzing hundreds of kits using Jtest and from what others have told us, but the rest of the work is up to you. As the owners of your kits, only you can see what kinds of people you match (surnames and locations), what most distant ancestors' names they show on their profile screen, how many In Common With they share with you, what ancestries are predicted in their MyOrigins, what Y-DNA and mtDNA haplogroups they have.
    Keep in mind Khazaria that the question of Jewish heritage is quite important to some people. Spain and Portugal have offered citizenship to people who can show Jewish ancestry from those countries. And for some people that can be a ticket out of poverty.

    I do wonder about the Jewish stats here at FTDNA. And for the record I'm not referring in particular to my own situation.

    I am curious to know what percentage of people who have tested at FTDNA have some Jewish background? The reason I ask is selection bias. In the normal American population I would expect something under 5% of the population would have that heritage. But if, for reputational or other reasons FTDNA's customers are, to a very high percentage, of Jewish extraction, then other customers who test are more likely to end of with Jewish matches and thus think they have Jewish heritage.

    For example I saw some matches in North Africa (Algeria, Tunisia etc) where not many people had tested with FTDNA but of the ones that had there were lots with notes saying they were Ashkhenazi, Sephardic etc.

    My suspicion is that a disproportionately high percentage of North African FTDNA customers have Jewish ancestry, at least for mitochondrial dna.

    cheers Peter
    Last edited by ffhound; 14th October 2019, 07:42 AM.

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  • Boreas
    replied
    Hi all,

    I’m a Turkish guy from Istanbul. I had some ashkenazi percentages from different companies which varies from %0 to %16. My question is how can ashkenazi results can vary that much? I have no any known jewish ancestor so I didn’t take it serious when I saw %4,5 Ashkenazi at myheritage at first, then I uploaded my raw data to gedmatch and it was %6,3 ashkenazi at jtest, then uploaded to dna.land and it was %16 ashkenazi at there. Finally I got %0 ashkenazi at FTDNA but surprisingly had %7 east european. As far as I read from the forums an ashkenazi gets thousands of matches which I don’t have. I have only 207 matches, some of them have ashkenazi surnames but not the majority. And when I sort according shared cm, highest is an ashkenazi with 69cM(longest 8cM). I know these are not very strong matches but still makes me wonder if these results are just noise or sign of a very distant ancestor?

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  • josh w.
    replied
    Originally posted by siroli View Post
    Oracle shows 87.8% Cornish (primary population) and 12.2% AJ (secondary). I took a closer look at MyOrigins - I get 95% European and 6% (yes, 6%!) Middle Eastern (Asia Minor). Most perculiar
    Sometimes Sephardic Jews show Asia Minor. However Asia Minor is not equivalent to Jewish ancestry

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  • Illumina
    replied
    Originally posted by siroli View Post
    My great grandfather was 100% Ashkenazi. My other 7 great grandparents were of British descent. MyOrigins detects no Ashkenazi ancestry yet I have hundreds of matches Ashkenazic Jewish matches, as one would expect. I get 8.5% Ashkenazi on JTest which is spot on. I'm surprised that MyOrigins doesn't pick up my Jewish ancestry.
    Siroli, last year I contacted one of my paternal grandmother's closest match on FF. Their relationship prediction is of 2nd-4th cousins. Grandma is mainly of Portuguese descent. Her match replied saying she was a Hungarian Jew. Both of her parents were Ashkenazim and perished in the holocaust. So, after the war she made Aliyah to Israel. Surprisingly, on MyOrigins this lady is 98% European and 2% African.

    Another curiosity is that on MyOrigins my grandma is 6% Eastern Middle East
    Last edited by Illumina; 19th June 2015, 09:24 AM.

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  • siroli
    replied
    Originally posted by josh w. View Post
    Yes. At this point I do not have too much confidence in My Origins. What does Oracle show. It is possible that re combination produced close to 0% Ashkenazi at MO
    Oracle shows 87.8% Cornish (primary population) and 12.2% AJ (secondary). I took a closer look at MyOrigins - I get 95% European and 6% (yes, 6%!) Middle Eastern (Asia Minor). Most perculiar

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  • josh w.
    replied
    Originally posted by siroli View Post
    My great grandfather was 100% Ashkenazi. My other 7 great grandparents were of British descent. MyOrigins detects no Ashkenazi ancestry yet I have hundreds of matches Ashkenazic Jewish matches, as one would expect. I get 8.5% Ashkenazi on JTest which is spot on. I'm surprised that MyOrigins doesn't pick up my Jewish ancestry.
    Yes. At this point I do not have too much confidence in My Origins. What does Oracle show. It is possible that re combination produced close to 0% Ashkenazi at MO

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  • siroli
    replied
    My great grandfather was 100% Ashkenazi. My other 7 great grandparents were of British descent. MyOrigins detects no Ashkenazi ancestry yet I have hundreds of matches Ashkenazic Jewish matches, as one would expect. I get 8.5% Ashkenazi on JTest which is spot on. I'm surprised that MyOrigins doesn't pick up my Jewish ancestry.

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  • rdegnen
    replied
    Chromo2 Ashkenazi

    On Irelands DNA Chromo2 Ashkenazi results were, my sister 9%, myself 5% and my father 0%. My mother was not tested. On FTDNA and 23andMe the results were 0% for all 3 of us. How does the Chromo2 test compare with other companies in Ashkenazi results?

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  • Taz85
    replied
    Originally posted by khazaria View Post
    But are many of your FTDNA matches Ashkenazic and are any of those estimated to be 100% Ashkenazic?

    So many Europeans have 1500 matches on Gedmatch on the default setting because their minimum block length of 7 cM is more lenient than the 7.69 cM here.



    In your oracles too? That could be meaningful, depending on other factors.
    I have 750 matches at Gedmatch at 8cM. So most likely around 1000-1100 at 7.7cm.

    Several of the Oracle's show Jewish admixture. A few of them show Assryian Jewish as the main population around 30% along with Hungarian or Romanian.
    Last edited by Taz85; 8th June 2015, 11:30 AM.

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  • dna
    replied
    Originally posted by josh w. View Post
    Mainly it is guesswork. Surname is an imperfect guide--there are internet guides to Yiddish names. A minority of Jews have Hebrew surnames, e.g. Levy or Cohen---but not perfect indicators. Sometimes location may be helpful, areas with a significant Jewish population. Of course, there are people of Jewish ancestry with no obvious Jewish indicators, e.g. Rupert Murdoch, John Kerry, Robert Downey Jr.
    Precisely! It is a guesswork.

    For the families that came recently from Central Europe, you can look at the first names of their ancestors. If they are provided in their original spelling, most of times they can definitely show Ashkenazi origins, as you would not find Mordechaj, Mosze, Szmuel etc. in other populations.

    W. (Mr.)

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  • georgian1950
    replied
    Originally posted by josh w. View Post
    Mainly it is guesswork. Surname is an imperfect guide--there are internet guides to Yiddish names. A minority of Jews have Hebrew surnames, e.g. Levy or Cohen---but not perfect indicators. Sometimes location may be helpful, areas with a significant Jewish population. Of course, there are people of Jewish ancestry with no obvious Jewish indicators, e.g. Rupert Murdoch, John Kerry, Robert Downey Jr.
    Thanks Josh. That is what I suspected. My Origins gives my step-daughter 19% Ashkenazi, but I wouldn't want to evaluate individually her over 1600 matches. I would guess though that at least half of them have Jewish heritage.

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  • josh w.
    replied
    Originally posted by georgian1950 View Post
    How do you know if a particular FF match is Ashkenazi? Is there a quick way to find the total number of matches that are Ashkenazi?
    Mainly it is guesswork. Surname is an imperfect guide--there are internet guides to Yiddish names. A minority of Jews have Hebrew surnames, e.g. Levy or Cohen---but not perfect indicators. Sometimes location may be helpful, areas with a significant Jewish population. Of course, there are people of Jewish ancestry with no obvious Jewish indicators, e.g. Rupert Murdoch, John Kerry, Robert Downey Jr.
    Last edited by josh w.; 8th June 2015, 09:36 AM.

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  • georgian1950
    replied
    How do you know if a particular FF match is Ashkenazi? Is there a quick way to find the total number of matches that are Ashkenazi?

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  • khazaria
    replied
    Originally posted by Taz85 View Post
    I have about 240 matches here at Ftdna, and 1500 over at Gedmatch.
    But are many of your FTDNA matches Ashkenazic and are any of those estimated to be 100% Ashkenazic?

    So many Europeans have 1500 matches on Gedmatch on the default setting because their minimum block length of 7 cM is more lenient than the 7.69 cM here.

    Several calculators at Gedmatch show Jewish admixture, of various populations.
    In your oracles too? That could be meaningful, depending on other factors.

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  • Taz85
    replied
    Originally posted by khazaria View Post
    We in this forum have already discussed your case thoroughly numerous times, such as in http://forums.familytreedna.com/showthread.php?t=30869 and http://forums.familytreedna.com/showthread.php?t=34975 and http://forums.familytreedna.com/showthread.php?t=31595

    Your "Asia Minor" element can be, but is not necessarily, consistent with partial Sephardic ancestry as I will also be explaining in a follow-up post on another topic.

    Your number of matches was deemed by some to be too low even on the database's statistics back in 2012 to represent a pattern consistent with Ashkenazic ancestry, but could be compatible with some other kind of Jewish. How many FF matches do you have today?

    So your map is still showing you have Western/Central European and Eastern European as your other ancestries right, and it doesn't predict Ashkenazic for you right?

    Just a warning that I don't want to get bogged down into this "Am I Jewish?" question with everybody like people seem to expect on Gedmatch which I am quickly tiring of. I posted general parameters for what I have seen by analyzing hundreds of kits using Jtest and from what others have told us, but the rest of the work is up to you. As the owners of your kits, only you can see what kinds of people you match (surnames and locations), what most distant ancestors' names they show on their profile screen, how many In Common With they share with you, what ancestries are predicted in their MyOrigins, what Y-DNA and mtDNA haplogroups they have.
    I have about 240 matches here at Ftdna, and 1500 over at Gedmatch. My Origins is still showing Eastern European, 17%, as well as West/Central Europe. Several calculators at Gedmatch show Jewish admixture, of various populations.
    Last edited by Taz85; 8th June 2015, 04:54 AM.

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