Variation in transmission of two BYDV-MAV isolates by multiple clones of Rhopalosiphum padi L. |
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Authors: | E Sadeghi CA Dedryver G Riault JP Gauthier |
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Institution: | (1) INRA, Laboratoire de Zoologie, domaine de la Motte, 35653 Le Rheu Cedex, France |
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Abstract: | Vector efficiency of up to 17 Rhopalosiphum padi L. clones originating from Europe, North America and North Africa, was evaluated by transmitting two isolates of the serotype MAV for which this species is normally an inefficient vector. When test plants were inoculated by batches of 3 aphids, both isolates were rather well transmitted by one clone (Rp5), isolate MAV2 was poorly transmitted by all other clones tested and isolate MAV11 was not transmitted by eight clones and poorly transmitted by two clones. When eight aphids were used by test plants, all clones transmitted both isolates. The epidemiological consequences of MAV transmission by some R. padi clones are discussed, as well as the interest of these clones for studying aphid-derived components of luteovirus transmission. |
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Keywords: | luteovirus aphid clones acquisition inoculation life cycle Europe North America |
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