The transconjugants were resistart to Km (Tn5), but not resistant to Cm (P~(GSq)).

• 300个接合转移子只带有转座子Tn5的Km(卡那霉素)抗性标记,而没有载体质粒(P~(GSq))的Cm(氯霉素)抗性标记。