Romaine lettuce cultivars ranging from susceptible to resistant to both Diabrotica balteata and Liriomyza trifolii were used in a breeding program to develop isogenic lines for use in biochemical analysis of resistance mechanisms. Female plus male D. balteata pairs were caged on plants for 6d to evaluate weight gain and ovarial development. Proportion weight gain by females feeding on plants of reciprocal crosses were significantly different suggesting the involvement of a non nuclear component provided by the seed parent that enhanced susceptibility to feeding.
Species 1: Coleoptera Chrysomelidae Diabrotica balteata (banded cucumber beetle)
Species 2: Diptera Agromyzidae Liriomyza trifolii (Serpentine leafminer)
Keywords: bioassay, ovary development
Back to Ten-Minute Papers, Subsection Fa. Host Plant Resistance and F. Crop Protection Entomology
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