Registration of GA‐BatSten1 and GA‐MagSten1, two induced allotetraploids derived from peanut wild relatives with superior resistance to leaf spots, rust, and root‐knot nematode

Wild relatives of peanut harbor alleles that confer strong resistance to diseases and pests adaptation environmental stresses, traits frequently cannot be found in Arachis hypogaea. However, most wild species are diploid, while cultivated (A. hypogaea L.) is tetraploid. When crossed, they produce sterile progeny, thus hindering their direct use breeding. To make the three accessions directly available for breeding, we developed at University Georgia two fertile artificially induced allotetraploids (also known as amphidiploids or neotetraploids): GA-BatSten1 (Reg. no. GP-239, PI 695418) GA-MagSten1 (GP-240, 695417). They derive from crosses between diploid peanut, A. batizocoi × stenosperma, magna respectively. Cuttings F1s were treated with colchicine. From some these cuttings, tetraploid seed produced. These tetraploids compatible carry early late leaf spot root-knot nematode, being used breeding programs United States production resistant cultivars.