EXPANDING THE GENETIC TARGETS FOR SHARPSHOOTER CONTROL: GENETIC DATASETS FOR SHARPSHOOTERS THAT TRANSMIT PIERCES DISEASE

• Author(s): Dang, P.; Hunter, Wayne; Mizell, Russell; Tipping, Christopher;
• Abstract: Identification of genes and proteins isolated from the sharpshooter, Oncometopia nigricans are aiding our understanding of important genetic variations between leafhopper species which spread Pierces disease. Presently 13,124 expressed sequences, culminating into the identification of ~4,649 unigenes for sharpshooters, O. nigricans and GWSS. These were represented in 1,229 assembled gene clusters, with 659 gene clusters being made up of sequences from both species leaving ~53% displaying specie uniqueness. Of the remaining 3,420 singlets. ~67% of the sequences belonged to the GWSS and ~33 % to O. nigricans. Gene frequency comparisons are now being completed and are being used to examine genetic similarities and differences between sharpshooters. Through gene frequency analysis it may be possible to determine important differences in the biology of sharpshooters to better understand their developmental biology, feeding and host plant utilization, as well as specific pathogen interactions. With this broad approach to sharpshooter management and understanding, new and more specific methods of control may be developed and implemented against these important economic insect pests to reduce the impact of Pierces disease.
• Publication Date: Aug 2003
• Journal: 2003 Pierce's Disease Research Symposium