Ageratumyellow vein virus isolated from tomato plants with leaf curl on Ishigaki Island,Okinawa, Japan |
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Authors: | Tsunaki Andou Ayako Yamaguchi Shinji Kawano Kunimasa Kawabe Shigenori Ueda Masatoshi Onuki |
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Affiliation: | (1) Okinawa Prefectural Plant Protection Center, Ishigaki, Japan;(2) Okinawa Prefectural Yaeyama Agricultural Extension Center, Ishigaki, Japan;(3) Okinawa Prefectural Agricultural Research Center, Itoman, Japan;(4) Japan International Research Center for Agricultural Sciences, Tsukuba, Japan;(5) National Agricultural Research Center for Kyushu Okinawa Region, Kumamoto 861-1192, Japan; |
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Abstract: | In 2005, severe leaf curling and yellowing were observed on tomato plants on Ishigaki Island. Because the symptoms were consistent with infection by a begomovirus, we used a polymerase chain reaction (PCR) with specific primers for begomovirus DNA-A and DNA satellite component (DNA-β) and detected products of the expected sizes from symptomatic tomato plant samples. DNA sequence analyses of the PCR products revealed that the symptomatic tomato plants were associated with Ageratum yellow vein virus (AYVV) infection. We confirmed AYVV transmission from the naturally infected weed host, Ageratum conyzoides, to healthy tomato plants by the insect vector Bemisia tabaci B biotype. This report is the first of AYVV occurrence in Japan. |
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