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Parastais Wrote:Commercial sites underestimate weight of N subclades for Baltic populations. First, commercial sites believe only 20% of LT is N, where all scientific publications so far got number from 38% to 42%. Second, lots of Baltic men don’t order deeper subclades than plain N. In general there are 4 major N subclades in Lithuanians and this is one of those 4. Still likely below 10% (40% of Y is N /4 subclades) of LT men, but wouldn’t call it rare in Lithuania. Like what is not rare in Lithuania then? Other 3 N subclades?
It is possible that it is somewhat more frequent, if the genetic studies have more balanced sampling in the country and great enough number of tested. Still, there are 420 Latvian men and 1773 Lithuanian men in FTDNA Discover. That is considerably more than in genetic studies. And I do not think it is very probable that only N-men are not interested in BigY testing...
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Y-DNA: N-Z1936 >> CTS8565 >> BY22114 (Savonian)
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11-23-2024, 07:09 AM
(This post was last modified: 11-23-2024, 07:10 AM by Zelto.)
(11-23-2024, 02:31 AM)Jaska Wrote: Parastais Wrote:Commercial sites underestimate weight of N subclades for Baltic populations. First, commercial sites believe only 20% of LT is N, where all scientific publications so far got number from 38% to 42%. Second, lots of Baltic men don’t order deeper subclades than plain N. In general there are 4 major N subclades in Lithuanians and this is one of those 4. Still likely below 10% (40% of Y is N /4 subclades) of LT men, but wouldn’t call it rare in Lithuania. Like what is not rare in Lithuania then? Other 3 N subclades?
It is possible that it is somewhat more frequent, if the genetic studies have more balanced sampling in the country and great enough number of tested. Still, there are 420 Latvian men and 1773 Lithuanian men in FTDNA Discover. That is considerably more than in genetic studies. And I do not think it is very probable that only N-men are not interested in BigY testing...
The discrepancy is caused by the overrepresentation of Ashkenazi amongst commercial DNA testers. Most of Eastern Europe is effected, just look at the frequencies of typical Middle Eastern Y-hgs compared to population studies which have controlled for ethnicity. J-M304 is more common than both N-M231 and R1a-M459 (which includes Jewish subclades) in Lithuania according to FTDNA Discover.
The population studies are low resolution, but more accurate in terms of overall haplogroup frequency.
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Zelto Wrote:The discrepancy is caused by the overrepresentation of Ashkenazi amongst commercial DNA testers. Most of Eastern Europe is effected, just look at the frequencies of typical Middle Eastern Y-hgs compared to population studies which have controlled for ethnicity. J-M304 is more common than both N-M231 and R1a-M459 (which includes Jewish subclades) in Lithuania according to FTDNA Discover.
OK, I take your word for it.
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(11-23-2024, 02:31 AM)Jaska Wrote: Parastais Wrote:Commercial sites underestimate weight of N subclades for Baltic populations. First, commercial sites believe only 20% of LT is N, where all scientific publications so far got number from 38% to 42%. Second, lots of Baltic men don’t order deeper subclades than plain N. In general there are 4 major N subclades in Lithuanians and this is one of those 4. Still likely below 10% (40% of Y is N /4 subclades) of LT men, but wouldn’t call it rare in Lithuania. Like what is not rare in Lithuania then? Other 3 N subclades?
It is possible that it is somewhat more frequent, if the genetic studies have more balanced sampling in the country and great enough number of tested. Still, there are 420 Latvian men and 1773 Lithuanian men in FTDNA Discover. That is considerably more than in genetic studies. And I do not think it is very probable that only N-men are not interested in BigY testing...
Like Zelto wrote.
First couple of years when I followed Latvia FTDNA project then Latvian surnames were minority there. Mostly Ashkenazi folk. Now I think it is better but still maybe 30-40% are not Latvians.
Aaand further commercial frequencies of further subclades have other sin > they calculate L-1025 that is further not further tested into frequency. So what I mean if roughly 80% of Latvian L1025 is under Z16981, but about 50% don’t test further than L1025, then frequency of Z16981 would be calculated as 40% of L1025 not 80%. Number approximate to illustrate problem.