菲律宾稻瘟病菌无毒基因的地理分布

Lopez Ana Liza C, Yli-Matilla Tapani, Cumagun Christian Joseph R

Jose Rizal Memorial State University⁻Tampilisan Campus, Znac, 7101 Tampilisan, Zamboanga del Norte, Philippines.

Institute of Weed Science, Entomology and Plant Pathology, College of Agriculture and Food Science, University of the Philippines Los Baños, 4031 Los Baños, Laguna, Philippines.

Microorganisms. 2019 Jan 19;7(1):23. doi: 10.3390/microorganisms7010023.

A total of 131 contemporary and 33 reference isolates representing a number of multi-locus genotypes of were subjected to a PCR test to detect the presence/absence of avirulence () genes. Results revealed that the more frequently occurring genes were (81.50%), (64.16%) and (47.98%), whereas the less frequently occurring genes were (19.08%) and (5.20%). It was also laid out that the presence of genes in is strongly associated with agroecosystems where the complementary resistant () genes exist. No significant association, however, was noted on the functional genes and the major geographic locations. Furthermore, it was identified that the upland varieties locally known as "Milagrosa" and "Waray" contained all the genes complementary to the genes tested.

总共131株当代分离株和33株参考分离株（代表多种多位点基因型）接受了聚合酶链反应（PCR）检测，以检测无毒力（）基因的存在与否。结果显示，出现频率较高的基因是（81.50%）、（64.16%）和（47.98%），而出现频率较低的基因是（19.08%）和（5.20%）。研究还表明，在存在互补抗性（）基因的农业生态系统中，基因的存在与密切相关。然而，在功能性基因和主要地理位置方面未发现显著关联。此外，已确定当地称为“米拉格罗萨”和“瓦雷”的旱地品种含有与所测试基因互补的所有基因。