Schematic representation of a single cross-over event between plasmid pMG601 and <i>H. salinarum</i> R1.

<p><b>A</b> and <b>B</b>, illustration of WT and the mutant genotype after incorporation of plasmid pMG501, respectively, <b>C</b>, Agarose gel of PCR products from chromosomal DNA of strain R1 (lane 2), and chromosomal DNA from 3 <i>Bga</i>H⁺ colonies after integration of pMG601 into R1 (lane 3–5), MW marker is shown in lane 1 (in bp).