Cereal yellow dwarf viruses
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Cereal yellow dwarf viruses (CYDVs)
The CYDVs are widely distributed and infect wheat, other cereals and various types of grasses. They are is transmitted mainly by Rhopalosiphum padi, but other aphids can also transmit them (e.g. see Hadi et al., 2011). Epidemics on cereals can result in significant losses and can be triggered by weather conditions and high vector populations. Planting resistant cultivars is the most common option for managing these diseases.
Several virus species have been described under the CYDVs. These were previously regarded as serotypes of the Barley yellow dwarf virus complex, but have been found to be only distantly related to the BYDVs. While most BYDVs belong to the genus Luteovirus, the CYDVs have been assigned to the genus Polerovirus.
The following species are currently included in the group of Cereal yellow dwarf viruses: