query: parent_taxon prune dwarf virus
supports: Ilarvirus is a genus of viruses, in the family Bromoviridae. Plants serve as natural hosts. There are currently 19 species in this genus including the type species Tobacco streak virus. Bromoviridae is a family of viruses. Plants serve as natural hosts. There are currently 33 species in this family, divided among 6 genera. "Prunus necrotic ringspot virus" (PNRSV) is a plant pathogenic virus causing ring spot diseases affecting species of the genus "Prunus", as well as other species such as rose ("Rosa" spp.) and hops ("Humulus lupulus"). PNRSV is found worldwide due to easy transmission through plant propagation methods and infected seed. The virus is in the family "Bromoviridae" and genus "Ilarvirus". Synonyms of PNRSV include European plum line pattern virus, hop B virus, hop C virus, plum line pattern virus, sour cherry necrotic ringspot virus, and peach ringspot virus. Plant propagation is the process of creating new plants from a variety of sources: seeds, cuttings, bulbs and other plant parts. Plant propagation can also refer to the artificial or natural dispersal of plants. A rose is a woody perennial flowering plant of the genus Rosa, in the family Rosaceae, or the flower it bears. There are over a hundred species and thousands of cultivars. They form a group of plants that can be erect shrubs, climbing or trailing with stems that are often armed with sharp prickles. Flowers vary in size and shape and are usually large and showy, in colours ranging from white through yellows and reds. Most species are native to Asia, with smaller numbers native to Europe, North America, and northwestern Africa. Species, cultivars and hybrids are all widely grown for their beauty and often are fragrant. Roses have acquired cultural significance in many societies. Rose plants range in size from compact, miniature roses, to climbers that can reach seven meters in height. Different species hybridize easily, and this has been used in the development of the wide range of garden roses. Prune dwarf virus ( PDV ) is a plant pathogenic virus of the family Bromoviridae . It causes dwarfism of leaves on certain prune and plum plants . It will also cause yellows in sour cherry , especially when present with prunus necrotic ringspot virus . There are no known transmission vectors , though the pollen of infected cherry trees has been found to infect other cherry trees a small percent of the time . Prunus is a genus of trees and shrubs, which includes the plums, cherries, peaches, nectarines, apricots and almonds.
candidates: bromoviridae ilarvirus plant prunus rosa virus
answer: ilarvirus