Reconciling conflicting phylogenies in the origin of sweet potato and dispersal to Polynesia by Muñoz-Rodríguez, P, Carruthers, T, Wood, RI, Williams, BRM, Weitemier, K, Kronmiller, B, Ellis, D, Anglin, NL, Longway, L, Harris, SA, Rausher, MD, Kelly, S, Liston, A, Scotland, RW