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ARS Home » Midwest Area » West Lafayette, Indiana » Crop Production and Pest Control Research » Research » Publications at this Location » Publication #189210
Title: BDV3 RESISTANCE TO CEREAL YELLOW DWARF VIRUS IS A TWO-COMPONENT SYSTEM: RESTRICTION OF VIRUS MOVEMENT AND APHID FEEDING

Author
item Anderson, Joseph
item WIANGJUN, H - PURDUE UNIVERSITY

Submitted to: American Phytopathological Society Annual Meeting
Publication Type: Abstract Only
Publication Acceptance Date: 4/13/2005
Publication Date: 6/7/2005
Citation: Anderson, J.M., Wiangjun, H. 2005. Bdv3 resistance to cereal yellow dwarf virus is a two-component system: restriction of virus movement and aphid feeding. American Phytopathological Society Annual Meeting [abstract]. 95:S123.

Interpretive Summary:

Technical Abstract: Cultivated wheat does not have effective resistance to Barley and Cereal Yellow Dwarf Viruses (YDV). Resistance Bdv3, derived from a related wheatgrass Thinopyrum intermedium, was integrated into wheat. This YDV resistance provides complete resistance to Cereal Yellow Dwarf Virus (CYDV). Resistance, however, does not inhibit viral replication. Cellular analyses have indicated that this resistance to CYDV is due to an inhibition or block of systemic virus movement. Unexpectedly, these data also demonstrated a negative effect on the feeding behavior of the aphid vector. Th. intermedium-derived CYDV resistance appears to act at two levels; aphid feeding and virus spread.