%0 Journal Article %T Evaluation of Potato virus X mild mutants for cross protection against severe infection in China %A J. G. Yang %A J. Liu %A Q. Q. Cong %A X.-D. Li %A Y. F. Lan %A Y. P. Tian %A Y. Wang %A Z. K. Guo %J Archive of "Virology Journal". %D 2019 %R 10.1186/s12985-019-1143-7 %K Cross protection %K Potato virus X %K RNA dependent RNA polymerase %K Virulence %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6425663/