Well - I do not find it surprising that Turks and European Jews show substantial genetic links considering the fact that Khazar connections. The North Africa of course was settled by Ottomans of Turkish and East European origin as well. Some came as mercenaires and soldiers while other came as slaves and concubines.
Sephardic Jews in Portugal however are a combination of various waves of Jews and Judaized people into the country and into North Africa. The Jews that are of Tuareg derivation have little to do with the late waves of such people into north Africa.
They are those who claim to have come with the other Canaanite peoples during the time of Aaron (Harun) and Jethro (Yathrib) andJeter already found settled in the time of Philo Judaeus in North Africa. The Tuareg and other Berbers theselves claim to be descendants of the Canaanites or Phoenicians and Philistines. Interested that Dr. Spencer Wells should be spotlighted in this televisio special as I have read he isone of the geneticists who has shwon the Berbers were essentially and African people especially on their male lineage who have mixed with Europeans (or "Eurasians") more recently on their matrilineal side. The original Jews were not cousins of the Turks who are in fact the people of European and Central Asian origin whom they settled amongst.