gammaflexiviridae gammaflexiviridae gammaflexiviridae is a family of viruses in the order tymovirales. fungi serve as natural hosts. there is only one genus in the family, mycoflexivirus, which has one species: botrytis virus f. mycoflexivirus virus classification (unranked): virus realm: riboviria kingdom: orthornavirae phylum: kitrinoviricota class: alsuviricetes order: tymovirales family: gammaflexiviridae genus: mycoflexivirus structure viruses in gammaflexiviridae are non-enveloped, with flexuous and filamentous geometries. the diameter is around 12-13 nm, with a length of 720 nm. genomes are linear, around 6.8kb in length. the genome has 2 open reading frames. genusstructuresymmetrycapsidgenomic arrangementgenomic segmentation mycoflexivirusfilamentousnon-envelopedlinearmonopartite life cycle viral replication is cytoplasmic. entry into the host cell is achieved by penetration into the host cell. replication follows the positive stranded rna virus replication model. positive stranded rna virus transcription is the method of transcription. fungi serve as the natural host. genushost detailstissue tropismentry detailsrelease detailsreplication siteassembly sitetransmission mycoflexivirusplantsnoneviral movement; mechanical inoculationviral movementcytoplasmcytoplasmmechanical inoculation: pseudococcid mealybugs; mechanical inoculation: aphids