The Balkan DYS481 anomaly

August 12, 2014 in Y-SNP vs Y-STR

Edit from  the 30th of October 2014: The “Balkan SNP” has now been named by FGC: FGC22049.

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I was puzzled why the “Balkan” sub-group has 0 at DYS481. Here is a possible explanation: They have a mutation within or close to this Y-STR. 

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One of them did the BigY.  From his results through YFull, and looking at the position of DYS481 (from 8426347 to 8426474 – thanks YBrowse!), I found that he has a mutation at 8426455 from G to A.

My guess is that it was enough to confuse the algorithm that was supposed to find the number of repeats for DYS481.

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This is now confirmed. He has asked FTDNA to “manually” recount and they changed his 0 to 25.

edited the 30th of August: FTDNA has been asked to “recount” all our Balkan member: verdict, they all turn out to be 25!