PCR AMPLIFYING AND SEQUENCING OF GgroEL GENE FROM ENDOSYMBIONTS IN Bemisia tabaci STUDY ON THE MOLECULAR DIFFERENCE OF ENDOSYMBIONTS FROM Bemisia tabaci(GENNADIUS) AND Trialeurodes vaporariorum(WESTWOOD) Comparison and optimization of genomic DNA extraction from endosymbionts of aphids Hemipteran and dipteran pests: Effectors and plant host immune regulators