Composition and Distribution of Phytophthora infestans Race Collected from Main Potato Production Areas in Gansu Province
WANG Li1，HUI Na-na1，LI Jian-jun1，MA Yong-qiang1，ZHOU Tian-wang1，LI Ji-ping1*，ZHU Xiao-qiong2，GUO Li-yun2
1Institute of Plant Protection，Gansu Academy of Agricultural Sciences，Lanzhou 730070，Gansu，China；2College of Agricultulture and Biotechnology of Plant Pathology，China Agricultural University，Beijing 100193，China
Abstract：This study used international differential host containing sing le dominant resistance gene to determine race of 75 isolates of Phytophthora infestans from different eco-regions of potato production in Gansu Province．And 45 races were determined，among which race 1.2.3.4.5.6.7.8.9.10.11 occurred with the highest frequency，and accounting for 22.67% of the determined isolates．They were the dominant races in Gansu Province．Among the tested strains，the frequency of isolates，which could overcome R4，R8 and R11 genes was over 80%．The strains，that could overcome R8 gene，could be founded in all collection places．
王立, 惠娜娜, 李建军, 马永强, 周天旺, 李继平, 朱小琼. 甘肃省马铃薯主产区晚疫病菌生理小种组成与分布[J]. 中国蔬菜, 2013, 1(22): 70-74.
WANG Li, HUI Na-Na, LI Jian-Jun, MA Yong-Qiang, ZHOU Tian-Wang, LI Ji-Ping, ZHU Xiao-Qiong. Composition and Distribution of Phytophthora infestans Race Collected from Main Potato Production Areas in Gansu Province. , 2013, 1(22): 70-74.
