Characterization of Effector Genes from Globodera Pallida in Resistant and Susceptible Potato Plants
Potato cyst nematodes (PCN) are some of the most economically important pests of potato. Globodera pallida was first detected in the United States in Idaho in April 2006. Nematode secretions (effector genes) are the first signals perceived by the plant, and affect the host defense response, facilitates the second-stage (J2) penetration and development in the host plant.
PDF Presented at: SON/ONTA Conference, July 2016.
Globodera Resistance Development
Screening potato breeding clones and varieties for resistance to three potato cyst nematode species
Two species of potato cyst nematodes, Globodera rostochiensis, and G. pallida, are found in the United States. Potato is also a host for a newly described Globodera species, G. ellingtonae. All three Globodera spp. were used in this study to evaluate resistance in 22 potato breeding clones and varieties. Each clone was replicated four to five times using similar methodologies conducted in two replicated experiments with each nematode species. Three entries had high resistance to all three cyst nematodes. Seven entries had resistance to G. ellingtonae and G. rostochiensis. There was close alignment with resistance to G. ellingtonae and G. rostochiensis, suggesting that the significant effort to incorporate resistance to G. rostochiensis may provide twice the benefit.
PDF Presented at Potato Expo, January 2017