Sephardic Jews DNA results

[Rodoorn]

Two is not a lot, though. But given that the ancestor might have lived in the 16th century, its possible he left no autosomal heritage in your family at all. Or you might have autosomal Sephardic ancestry, but not from your direct paternal ancestor. Many alternative options, I'd say.
Without a more recent paternal lineage match, it remains speculative.

I'm not 'selling certainties' here, nevertheless I think I might be on the right track (within all uncertainties).

Why?
- As such E-L!401 and the fragments on the chromosomes share something: a Levantine connection/ origin! Even more we only have E-L1401 samples from the extended Levant. So my assumption is that Y-DNA and the chromosome fragments could be from the same source.
- I have made a probability calculation, which chance is higher a entrance of a solitary Y-DNA in 1000 AD (living unto now) or the chance that in a lifetime (80 years) your are going to be hit by the thunder and win the lottery in the Netherlands. Last one won. A solitary line is very vulnerable to become extinct (no sons). The more recent an influx is the more likely.
- The Marranos have a genetic profile lots of MENA/Levant and Iberia that coincidences with the chromosome fragments.
- The Marranos went in the 17th century to the Northern Netherlands (in small numbers!). That is seen from my father about 7 generations ago, that leaves a trace of 0.8% on the whole of the autosomal. In the Your DNA Eurasia modern admixture my father gets 1% Druze, which are close to the Sephardim (Xue et al 2015).

On the individual chromosome level we get bigger hits. MENA/Levant and Iberian (the Marranos genetic profile).  As fare as I know more than average Dutch.

https://docs.google.com/document/d/1zwor...sp=sharing

You see @Rober_tce also has a Sephardim presence in relative small percentages. Makes sense imho.

Conclusion: makes it other options impossible: no. Uncertainties stay. 

Nevertheless this option a Marranos forefather is a real scenario. Not fare fetched.