First report of resistance breaking strain of Tomato spotted wilt virus (Tospovirus; Bunyaviridae) on resistant sweet pepper cultivars in Turkey

摘要

Tomato spotted wilt virus?(TSWV) is one of the most devastating viruses worldwide on Capsicum peppers (Capsicum annuum). The virus is very common on sweet pepper and tomato in Samsun province of Turkey. The use of Capsicum pepper cultivars possessing the?Tsw?resistance gene is the most efficient method to control the virus in pepper crops. In 2013, a greenhouse-grown sweet pepper variety known to be resistant to TSWV showed typical virus-like symptoms in Carsamba district of Samsun province, which is one of the most important Capsicum pepper growing areas of Turkey. Samples were collected and tested using virus-specific polyclonal antiserum by DAS-ELISA. All Capsicum pepper samples were positive for TSWV, but negative for Impatiens necrotic spot virus, Tomato chlorotic spot virus, Cucumber mosaic virus, Tobacco mosaic virus, Tomato mosaic virus, Pepper mild mottle virus, Potato virus Y and Alfalfa mosaic virus.?.