Domestication traits are generally fixed within all domesticates, and were selected during the initial episode of domestication of that animal or plant, whereas improvement traits are present only in a proportion of domesticates, though they may be fixed in individual breeds or regional populations.[8][9][10]  The dog was the first domesticated species,[11][12][13] and was established across Eurasia before the end of the Late Pleistocene era, well before cultivation and the domestication of …
Zenodo (CERN European Organization for Nuclear Research)