中国东北和华北地区紫花苜蓿根瘤菌遗传多样性研究
李昕芫,娄金秀,刘清源,胡健,张英俊

Genetic Diversity Analysis of Rhizobia Associated with Medicago sativa Cultivated in Northeast and North China
LI XinYuan,LOU JinXiu,LIU QingYuan,HU Jian,ZHANG YingJun
图1 持家基因atpD(A)、glnII(B)和rpoB(C)的系统发育分析
Fig. 1 Neighbor-joining phylogenetic tree based on housekeeping gene atpD (A), glnII (B) and rpoB (C)