Phytopathology
October 2004
ABSTRACT Incorporation of Thinopyrum intermedium-derived resistance genes into improved wheat germ plasm generated a wheat substitution line (P29) which is completely resistant to Cereal yellow dwarf virus (CYDV). The undetectable CYDV titer in P29 led many to conclude that resistance prevented viral replication. To determine whether CYDV replication or movement is inhibited, we examined inoculated leaves for replication and uninoculated leaves for systemic spread.
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