|BATUMAN, O. - University Of California|
|TURINI, T. - University Of California|
|OLIVEIRA, P. - University Of California|
|ROJAS, M. - University Of California|
|MACEDO, M. - University Of California|
|MELLINGER, H. - Glades Crop Care|
|GILBERTSON, R. - University Of California|
Submitted to: Plant Disease
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 11/14/2016
Publication Date: 4/1/2017
Citation: Batuman, O., Turini, T.A., Oliveira, P.V., Rojas, M.R., Macedo, M., Mellinger, H.C., Adkins, S.T., Gilbertson, R.L. 2017. First report of a resistance-breaking strain of Tomato spotted wilt virus infecting tomatoes with the Sw-5 tospovirus-resistance gene in California. Plant Disease. 101(4):637. https://doi.org/10.1094/PDIS-09-16-1371-PDN.
Interpretive Summary: Tomato spotted wilt virus (TSWV) is a highly destructive pathogen of tomato in California. TSWV is managed by the use of resistant tomato cultivars. When resistant tomatoes began to show symptoms of TSWV, we demonstrated the presence of a TSWV strain able to overcome this resistance.
Technical Abstract: Management of Tomato spotted wilt virus (TSWV) with the Sw-5 resistance gene in tomato is highly effective. However, in certain regions of the world where resistant tomatoes have been continually planted, resistance-breaking strains of TSWV have emerged. In spring 2016 resistant tomatoes were observed with symptoms in California. Biological and molecular characterization of TSWV from these plants indicated the presence of a resistance-breaking strain of TSWV.