Mycoviruses are viruses that infect fungi. The majority of mycoviruses have double-stranded RNA (dsRNA) genomes and isometric particles, but approximately 30% have positive sense, single-stranded RNA (+ssRNA) genomes. To be a true mycovirus, they must demonstrate an ability to be transmitted and be able to infect other healthy fungi. Many double stranded RNA elements that have been described in fungi do not fit this description, and in these cases they are referred to as virus-like particles. Preliminary results indicate that most mycoviruses codiverge with their hosts. Their phylogeny is largely congruent with one of their hosts. However, many virus families containing mycoviruses have only been sparsely sampled.
Created: 2019-06-25 15:49:34 CDT (-0400)
Last modified: 2019-08-18 17:53:20 CDT (-0400)