The subgroup II luteovirus barley yellow dwarf virus-RPV (BYDV-RPV) acts as a helper virus for a satellite RNA (satRPV RNA). The subgroup II luteovirus beet western yellows virus (BWYV) and the ST9-associated RNA (ST9a RNA), a BWYV-associated RNA that encodes a polymerase similar to those of subgroup I luteoviruses, were assayed for their ability to support replication of satRPV RNA. SatRPV RNA...

elisa values (o.d.s) of extracts of separately roots and individual leaves of barley and wheat plants infected by a french bydv-pav isolate (pav-4), were assessed for five dif-ferent virus incubation periods in controlled conditions (5, 10, 15, 20 and 25 days after in-oculation). in most cases, virus contents of individual roots or leaves were not statistically different for barley and wheat. f...

Barley yellow dwarf virus (BYDV) is an important viral disease of grain crops worldwide and a major cause yield loss. The risk periods for BYDV infection coincide with milder temperature that prolongs aphid flight facilitates transmission through primary secondary movement in the crop. Secondary associated greater spread winter cereals. A critical component management therefore delaying sowing ...

Non-crop plants such as grasses and volunteer are an inseparable part of the flora crop fields can influence virus incidence in plants. The presence reservoirs lead to a higher probability However, role inoculum source agricultural has not been well studied for many viral diseases crops. Grasses have found constitute potential cereal-infecting viruses different parts world. This study revealed ...

A combined RFLP and AFLP map was constructed for hexaploid oat (Avena spp.). The segregation of AFLP markers was scored in two hexaploid oat recombinant inbred line (RIL) populations, the 'Kanota' x 'Ogle' RFLP population, and a population derived from 'Clintland64' and 'IL86-5698', barley yellow dwarf virus (BYDV)-sensitive and BYDV-tolerant lines, respectively. More than 300 AFLP markers were...