The results indicated that between peanut Rhizobia originated from Qingdao, Shandong province and Fengyang, Anhui province and other strains have the lowest similarity.

• 结果表明来自凤阳和山东青岛地区花生根瘤菌的遗传距离比快生型和慢生型根瘤菌之间的遗传距离更远；