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The relationship between viruses of potato calico and alfalfa mosaic


, : The relationship between viruses of potato calico and alfalfa mosaic. Phytopath 30(5): 444-447

Plants of Nicotiana glutinosa and N. tabacum infected with potato-calico virus are refractory to infection with alfalfa-mosaic virus. Potato-calico and alfalfa-mosaic viruses are, therefore, considered to be closely related. The former virus is named Marmor medicaginis var. solani and the latter M. medicaginis var. typicum. Because plants affected by potato-ringspot virus (M. dubium var. annulus), cucumber-mosaic virus (M. cucumeris var. vulgare) or Canada-streak virus (M. aucuba var. canadense) are susceptible to alfalfa mosaic, these viruses are not thought to be closely related to alfalfa-mosaic virus.

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