1Department of Nematology, University of California, Riverside, CA 92521, USA
2Plant Pest Diagnostic Center, California Department of Food and Agriculture, 3294 Meadowview Road, Sacramento, CA 95832, USA
3Center of Parasitology of the A.N. Severtsov Institute of Ecology and Evolution, The Russian Academy of Sciences, Leninskii Prospect 33, Moscow 117071, Russia