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Registered Users
how to determine lineage
How to figure out this problem: mother/daughter tested, both have of course X chromosome (haplo is D4). On Gedmatch largest X match was of different haplo T1. Having X matches but have completely different haplgroup? Can someone help me to understand it ?
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Registered Users
Significant X match for a woman need not have the same haplo, because X match and mtDNA are different.
For example, mother and daughter share mtDNA AND are an X match.
Daughter and father do not share mtDNA but are an X match (daughter gets X from both parents).
Here, the daughter and mother both match another person, but the other person need have gotten his or her matching X segment from someone sharing a matrilineal line with them. For example, the mother and daughter have a matching X segment from the mother's father, someone with whom they would not have an mtDNA match. If the other person matched is a woman, that person's matching X segment could be from her father, so again would not go with matching mtDNA.
You can simply rule out that this person is a matrilineal match.
Hope that makes sense.
Last edited by msmarjoribanks; 01-05-2018 at 12:43 AM.
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Registered Users