>>2751371the basic ancestral component of all Italians is the early neolithic European(EEF) one(Sardinian-like), which is lightly higher in the north
what distinguishes northerners from southerners is that northerners on top of this EEF have more European hunter gatherer ancestry, more ancestry from bronze age steppe invaders and less of bronze age Anatolian ancestry
southerners have less HG ancestry, less steppe ancestry and more bronze age Anatolia
so there isn't a unique origin really
