4Menzel W, Zahn V, Maiss E. Multiplex RT-PCR-ELISA com- pared with bioassay for the detection of four apple viruses[J]. Journal of Virological Methods, 2003,110(2) : 153 - 157.
5Thokchom T,Rana T, Hallan V,et al. Molecular characteriza- tion of the Indian strain of Apple mosaic virus isolated from ap- ple(Malusdomestica)[J]. Phytoparasitica, 2009,37(4):375- 379.
6Watpade S,Raigond B,Pramanick K K,et al. Simultaneous de- tection of Apple chlorotic leaf spot virus and Apple mosaic vi- rus in crab apples and apple rootstocks by duplex RTPCR[J]. Scientia Horticulturae, 2013,164: 88 - 93.
7Adams M J,Antoniw J F,Bar-Joseph M,et al. The new plant virus family Flexiviridae and assessment of molecular criteria for species demarcation[J]. Archives of Virology, 2004, 149 (8):1672.
8Martelli G P,Candresse T, Namba S. Trichovirus, a new genus of plant viruses[J]. Archives of Virology, 1994,134(3/4) : 451 - 455.
9Welsh M F,Uyemoto J K. Differentiation of syndromes caused in apple by graft-transmissible, xylem-affecting agents [J]. Phytopathology, 1980,70(4) : 349 - 352.
10Wu Z B,Ku H M,Su C C,et al. Molecular and biological char- acterization of an isolate of Apple stem pitting virus causing pear vein yellows disease in Taiwan[J]. Journal of Plant Pa- thology, 2010,92 (3) :721 - 728.