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. 2018 Feb 12;17:21. doi: 10.1186/s12934-018-0872-4

Fig. 3.

Fig. 3

Simultaneously deletion of two non-continuous large-scale genome regions in L. casei BL23. a Layout and genetic context of the ~ 12.8 kb genome region and the sizes of PCR products amplified with primers H1F and H2R from BLD3 strains. b Colony PCR results. M: DNA marker; 1–2: random picked chloramphenicol resistance colonies. c Growth of L. casei BL23 and the deletion strain L. casei BLD3 on MRS