Questions tagged [endogamy]

Endogamy is the practice of marrying within the same ethnic, cultural, social, religious or tribal group. In endogamous populations everyone will descend from the same small gene pool. People will be related to each other in a recent genealogical timeframe on multiple ancestral pathways . This requires particular attention when working with autosomal DNA.

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1answer
349 views

Interpreting DNA matches from endogamous communities?

Mystery match, does not know father. Matches me on mother's paternal side. Me and match: 376.3 cM,15 matching segments, largest segment 47.2cM Me and his daughter: 84.7cM, 4 matching segments, ...
6
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1answer
171 views

Is longest cM a better predictor of relatedness than total cM for Ashkenazi Jews?

As an Ashkenazi Jew, I'm used to matches being predicted to be closer than they really are. My father recently got a match to an adoptee of 348.3 shared cM, with a longest segment of 57.4 cM (...
5
votes
2answers
130 views

Can group of matches on same segment with cM value in mid 20s be out-of-range?

WARNING: This is a question that involves endogamous genetic genealogy. (Not applicable to "normal" or "standard" DNA evaluation). I am still struggling to find some statistical limits/boundaries for ...
3
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1answer
154 views

Why would I match someone in a region neither of my parents do?

I was surprised to find someone show up in FTDNA as a 2nd-3rd cousin to me (168 shared cM, 34 segments with a minimum length of 5 cM) but not among the 17,667 matches of my father or the 18,178 ...
3
votes
1answer
290 views

Taking endogamy into account when analyzing DNA matches?

How can I be certain how closely I actually relate to my cousin matches when I know that I have a person in my tree who is my 4th Great Aunt on my Father's Maternal side. This same person is possibly ...