Abstract
Papaya leaf curl China virus (PaLCuCNV) was previously reported as a distinct begomovirus infecting papaya in southern China. Based on molecular diagnostic survey, 13 PaLCuCNV isolates were obtained from tomato plants showing leaf curl symptoms in Henan and Guangxi Provinces of China. Complete nucleotide sequences of 5 representative isolates (AJ558116, AJ558117, AJ704604, FN256260, and FN297834) were determined to be 2738–2751 nucleotides, which share 91.7%–97.9% sequence identities with PaLCuCNV isolate G2 (AJ558123). DNA-β was not found to be associated with PaLCuCNV isolates. To investigate the infectivity of PaLCuCNV, an infectious clone of PaLCuCNV-[CN:HeNZM1] was constructed and agro-inoculated into Nicotiana benthamiana, N. tabacum Samsun, N. glutinosa, Solanum lycopersicum and Petunia hybrida plants, which induced severe leaf curling and crinkling symptoms in these plants. Southern blot analysis and polymerase chain reaction (PCR) indicated a systemic infection of test plants by the agro-infectious clone.
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Project supported by the National Natural Science Foundation of China (No. 30530520), the Zhejiang Agricultural Science and Technology Key Research Projects (No. 2007C12054), and the Natural Science Foundation of Zhejiang Province, China (No. Y307397)
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Zhang, H., Ma, Xy., Qian, Yj. et al. Molecular characterization and infectivity of Papaya leaf curl China virus infecting tomato in China. J. Zhejiang Univ. Sci. B 11, 109–114 (2010). https://doi.org/10.1631/jzus.B0900176
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DOI: https://doi.org/10.1631/jzus.B0900176