Intraspecies variability in transmission efficiency of stylet-borne viruses by the pea aphid (Acyrthosiphon pisum)

The efficiency of bean yellow mosaic virus (BYMV; Potyvirus group) tranasmission from pea to pea plants by 36 clones of the pea aphid (Acyrthosiphon pisum) was studied. The efficiency of the clones varied; it was not related to the aphid colour form (green, red or yellow) or the origin of the clone (host plant, geographic area). With alfalfa mosaic virus, the virus-vector relationships concerning transmission efficiency were, in general, similar to those found with BYMV. The behaviour of the clones to the circulative pea enation mosaic virus was, however, different.