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Grapevine leafroll-associated virus 3 (GLRaV-3) is the most prevalent causal agent of grapevine leafroll disease (GLD). Of the 75 grapevine samples collected from three regions in China, 46.7% and 94.7% of samples tested positive for GLRaV-3 in reverse transcription-PCR (RT-PCR) and reverse transcription nested PCR (RT-nPCR), respectively. The SSCP analysis for the clones of complete CP gene from...
Citrus tristeza virus (CTV) isolates collected from southern China were characterized by biological indexing on citrus indicators, restriction fragment length polymorphism (RFLP), and bi-directional reverse transcription-polymerase chain reaction (BD-PCR) analysis of their coat protein (CP) genes. Of the 30 isolates, only two isolates, N3 and N4, did not induce visible symptoms. Twenty-eight other...
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