Question

What items are from the American continent?

mango

sweet potatoes

turkey

coffee

Answer 1

Sweet potatoes

The origin and domestication of sweet potato is thought to be either in Central America or South America.[7] In Central America, sweet potatoes were domesticated at least 5,000 years ago.[8] In South America, Peruvian sweet potato remnants dating as far back as 8000 BC have been found.[9]

Austin (1988) postulated that the center of origin of I. batatas was between the Yucatán Peninsula of Mexico and the mouth of the Orinoco River in Venezuela. The 'cultigen' had most likely been spread by local people to the Caribbean and South America by 2500 BC. Zhang et al. (1998) provided strong supporting evidence that the geographical zone postulated by Austin is the primary center of diversity. The much lower molecular diversity found in Peru–Ecuador suggests this region should be considered as secondary center of sweet potato diversity.