Genetic structure of traditional cacao reveals four new genetic lineages in indigenous Amazonian sites in Peru - Lambert A. Motilal; Martha S. Calderon; Danilo E. Bustamante; David Gopaulchan; Daniel Tineo; Fanny R. Márquez-Romero; Sphyros Lastra; Jorge R. Diaz-Valderrama; Juan Carlos Guerrero-Abad; Manuel Oliva; Pathmanathan Umaharan (PLoS ONE, 2026)