Originally Posted by
Ion Basescul
There are differences and all of them exist for a reason.
Moldavia_North is mixed with Ukrainians, especially those from Bukovina.
Moldavia_South is intermediary between Moldavia_North and Wallachia.
Muntenia is mixed with Bulgarians.
Dobruja is a recent colony, populated by people from all over the country and then also some Turks and Tatars mixed in.
Oltenia had a Hungarian presence, which is also noticeable genetically.
Banat had a strong migration from Oltenia.
Crisana is noticeably mixed with Hungarians.
Maramures is like Moldavia_North, as in mixed with Ukrainians, but not as significantly.
And Transylvania is similar to Crisana, but also received significant migration from Wallachia and Moldavia in communist times.
I am not consolidating them, as it will compromise accuracy for no reason at all. For a country of Romania's size and diversity, 10 averages is fair. Better cut the Ethiopian regions or some of the exotic populations from Southeast Asia and Africa, which is not meaningful to most users on this forum.