Identification and characterization of a new geminivirus from soybean plants and determination of V2 as a pathogenicity factor and silencing suppressor

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BACKGROUND: Soybean is one of the four major crops in China. The occurrence of viruses in soybean causes significant economic losses. RESULTS: mutants. Both the relative viral DNA and CP protein accumulation levels significantly decreased when compared with SGVA-inoculated plants. CONCLUSIONS: This work identified a new geminivirus in soybean stay-green plants and determined V2 as a pathogenicity factor and silencing suppressor.