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The identification of morbidity in inoculated Chinese cabbage. (A) The left plant was photographed at 21 dpi, and it showed severe symptoms such as systemic vein clearing, necrosis, and stunting. The right plant served as control. (B) For RT-PCR detection, RNA extraction and reverse transcription were performed on each sample. CP expression level was quantified by qRT-PCR, and the length of CP segment was 204 bp. Actin 7 (Bra028615) was used as an internal reference gene.
