km marker 中文意思是什麼
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Pgxn217 was transferred into bradyrhizobium japonicum strain gx201 by triparental mating using the helper plasmid prk2073. marker exchange was achieved by selection on yma containing sm, km, gm, spc et al four kinds of antibiotics. mutants were confirmed by southern blotting and hybridization with the wild - type region and the tn5 fragment respectively
隨后，利用突變質粒pgxn217誘變慢生型大豆根瘤菌菌株gx201 ，獲得了gx201的突變體菌株gx217 ；將pgxn201的3 . 4kbecori片段與plarf3連接獲得亞克隆pgxn201cl ，然後將pgxn201cl導入突變體菌株gx217 ，構建了gx217的功能互補菌株rgx217 。
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