Figure 8 : The approximate known distributions of A. duranensis and A. magna, the location of the single known occurrence of A. ipaensis and the center of diversity for the most primitive type of cultivated peanut, A. hypogaea subsp. hypogaea var. hypogaea.

From: The genome sequences of Arachis duranensis and Arachis ipaensis, the diploid ancestors of cultivated peanut

Figure 8

A. ipaensis is only known to be from a single location and is biologically conspecific with A. magna, which occurs far to the north and at lower altitude. The isolated occurrence and estimated divergence of the A. ipaensis genome from the B genome of A. hypogaea, only 9,400 years ago, indicate that A. ipaensis was probably taken to its present location from the north by prehistoric inhabitants of the region. A. hypogaea was formed by hybridization of A. ipaensis with A. duranensis and polyploidization. The figure was generated using Natural Earth.