N.M. Koppelman et al., Genomic microsatellites identify shared Jewish ancestry intermediate between Middle Eastern and European populations. BMC genetics, 2009. Open access.
The first thing I looked at was whether they had sampled non-Jewish Turks as control group. They did not, hence, in my opinion, this is just another paper that totally misses the point of Jewish origins, which are probably more in ancient Anatolia than in Palestine.
However, my dad, who grew up under a fascist dictatorship where good information was scarce and camouflaged, taught me to read between lines: to go beyond what the authors are expressly saying and detect that way further implications. And there are some things we can learn from this paper too therefore.
They did not sample gentile Turks but they did sample Jewish Turks and Palestinians, as well as Tunisian and Moroccan Jews, Tuscan and Adygei gentiles, etc. Certainly Jews (who appear as a rather homogeneous cluster regardless of origin) do not cluster closely with Palestinians at K=6, which in itself suggests that they are not of Palestinian origin. Their Palestinian genetic levels are essentially the same as those of Europeans, or just slightly higher.
The "Jewish" (Anatolian?) cluster does appear instead to have some increased presence in some European populations: exactly those in which you would expect a greater Anatolian affinity: Sardinians, Tuscans and Adygeis.
This paper is essentially useless and is unable to question the Anatolian Diaspora hypothesis that I hold as the likely origin for Jews and very specially European Jews (Ashkenazim and many Sephardim).
Why do I hold this hypothesis? First, for historical reasons: the original Jewish community in Hellenistic and Roman times was the Anatolian diaspora (there were Jews in some other areas, notably Alexandria and Palestine but the vast majority lived in Asia Minor - and that's why Christianity began there). At that time Judaism (of which Christianity is just an offshoot) was proselytist (and that's why Christianity and Islam are proselytist) and logically absorbed many gentiles who found spiritual and/or materialist benefits in such conversion. There are clear medieval examples of full nations or at least their elites converted to Judaism: Yemen, Kurdistan, Berbers, Khazars... and nothing less than the whole Roman Empire (Christian subsect, then transformed in a separate religion). So this should not be surprising at all (but of course is taboo under the Zionist doctrine because it would imply that Judaism is just a religion, not a race or nation).
Secondly, Jews, specifically Ashkenazi Jews, have only clustered with someone else (as far as I know) when Greeks and Armenians were included in the sample (see Bauchet 2007). They are not Turks but close enough and anyhow these three peoples made up a unique cluster in this mostly European study.
So I am still waiting for the research paper that dares to deal with this issue from a honest perspective. Of course, I know that (sadly enough) one should not expect such honest approach from a Tel Aviv University researcher but I am always optimistic and truly believe in human good disposition and honesty. However I also know of cowardice and conformism.
I'm still waiting.