Screening for resistance to Nacobbus aberrans and Gobodera spp. in wild potato species resistant to other pathogens

Abstract

One hundred and fifty-nine progenies of different species of Solanum, reported as resistant to late blight (Phytophthora infestans), Colorado potato beetle (Leptinotarsa decemlineata) or Potato leaf roll virus, were evaluated for their reaction to Bolivian populations of Nacobbus aberrans and Globodera spp. Solanum microdontun, S. acaule and S. okadae showed a larger number (83, 63 and 88%, respectively) of entries resistant to N. aberrans. Solanum okadae and S. microdontun were also resistant to Globodera spp. (57 and 50%, respectively). Solanum chaucha, S. sparsipilum and S. tarijense, reported to be resistant to Colorado potato beetle, showed 54% of entries resistant to N. aberrans.