 By comparison, autosomal DNA (aDNA) is a comprehensive indicator of archaeogenetics and its interaction with modern populations.More recently (2015), genetic studies of livestock have found evidence that proto-Etruscan settlers may have brought with them cattle from Anatolia, which contributed to modern cattle breeds from north-central Italy, such as the Chianina and Romagnola.By comparison, both of these breeds were "less closely related" to some breeds from other parts of northern Italy (Trentino and Liguria), Switzerland, Iberia and North-West Europe.