01359nam a2200217Ia 4500 CTU_139438 210402s9999 xx 000 0 und d 660.62 Kh401 Nguyen, Dac Khoa Effect of single resistance genes and their pyramid on the diversity of Xanthomonas oryzae pv. oryzae population under field conditions as revealed by insertion sequence-polymerase chain reaction (Is-PCR) : Master of science Nguyen Dac Khoa Philippines University of the Philippines Los Banos 2005 The specific obectives are to group xoo isolates of contemporary populations collected from rice fields in the Philippines based on their DNA fingerprints generated from IS-PCR using J3 primer; To assess the genetic variation of Xoo populations between years, experimental sites, and among rice lines; To make inference on the effect of single resistance genes and their pyramid on the population structure of Xoo under field conditions which can be used as a guide in the deployment of resistance. Sinh học phân tử,Molecular Biology,Crops,Cây trồng Rice,Genetic engineering.,Lúa gạo,Công nghệ di truyền Năm Trung tâm Học liệu Trường Đại học Cần Thơ