Four new groups of indigenous cacao varieties discovered in PeruA new genetic analysis of hundreds of cacao trees representing traditional Amazonian varieties grown on farms across Peru has revealed four previously unidentified, genetically distinct groups. Lambert Motilal, with colleagues from the Cocoa Research Center, The University of the West Indies, and Martha S. Calderon and Danilo E. Bustamante, with their colleagues from the Universidad Nacional Toribio Rodríguez de Mendoza, partnered to explore Peru's untapped cacao diversity.