aBiotechnology Research Center of Shandong Academy of Agricultural Sciences, Ji’nan, Shandong Province, P.R. China
bAgriculture Bureau of Yiyuan, Zibo, Shandong Province, P.R. China
cShandong Academy of Agricultural Sciences/Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Ji’nan, P.R. China
Correspondence to: e-mail: wansb@saas.ac.cn; lixinguo@tom.com
DOI: 10.1134/S1021443716070013