Where does the germplasm come from and who donates it?
Germplasm comes from all over the world and it is donated by collectors, breeders or experts in systematics who locate material with unusual or interesting traits that may eventually be useful in agriculture. For example, a collector may find an apple with unusual flavor or a wheat landrace that is resistant to aphids. Most of the germplasm for agricultural crops comes from the area where that crop evolved. This area, known as the Center for Diversity, is believed to have the highest genetic variability in the smallest geographic area.