Epidemiology of soybean vein necrosis virus; Ioannis Tzanetakis ( University of Arkansas), John Rupe ( University of Arkansas) ($33400). The Project Manager's email is itzaneta@uark.edu.

Key Words: Soybean Viruses, Soybean Diseases

Soybean vein necrosis disease (SVND) was first described in 2008 in plants showing reduced vigor, and vein necrosis. Plants were tested for 16 viruses but none were found associated with the disease. Symptoms are widespread in Arkansas (from East to West and North to South) and have also been observed in all states we have investigated (Illinois, Missouri, Kentucky and Tennessee). After coordinated efforts with scientists at the University of Tennessee, the research team was able to identify a new virus associated with symptoms. Given the extent of SNVD and the several different genotypes it affects (from breeding lines to commercial cultivars) it is necessary to study the virus, develop detection protocols and implement prophylactic. This project will identify vectors, evaluate seed transmission, find alternative hosts and study yield losses caused by a new virus associated with leaf necrosis in soybean.

This project is funded by Arkansas Soybean Promotion Board

Website is funded by the soybean checkoff

Soybean Checkoff