Abstract
This work aims to optimize the conditions of amplification and revelation of microsatellite markers, as well as to evaluate the genetic diversity of 17 accessions (landraces) of yam (Dioscorea cayenensis Lam.) collected in authoctone agricultural systems of the Vale do Ribeira (SP), in the municipalities of Cananeia, Iguape, Iporanga and Eldorado. For the DNA extraction the method of Elia…