Peanut genome sequenced with unprecedented accuracy

The story of the cultivated peanut begins several thousand years ago in South America, where the genomes of two wild ancestors, A. duranensis and A. ipaensis , merged in a rare genetic event.
The team’s genomic analysis of populations of plants that make up the wild peanut species pointed to a region in northern Argentina known as Rio Seco. Researchers surmise that ancient farmers migrating there from Bolivia exposed A. duranensis plants to another species they had brought with them – A. ipaensis , considered the other parent of cultivated peanut.