Y Ling1, J Xia2, K Koji3, X Zhang2, Z Li2. 1. College of Life Sciences, Inner Mongolia University for Nationalities, Tongliao, Inner Mongolia 028000, China. 2. College of Plant Protection, Shandong Agricultural University, Taian, Shandong 271018, China. 3. River Basin Research Center, Gifu University, Gifu 501-1193, Japan.