The iac and iad gene clusters from previous studies [16,18,20–24,27,49] were used as template sequences for comparative genomics analysis.

<p>The iac and iad gene clusters from previous studies [<a href="http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.3002921#pbio.3002921.ref016" target="_blank">16</a>,<a href="http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.3002921#pbio.3002921.ref018" target="_blank">18</a>,<a href="http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.3002921#pbio.3002921.ref020" target="_blank">20</a>–<a href="http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.3002921#pbio.3002921.ref024" target="_blank">24</a>,<a href="http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.3002921#pbio.3002921.ref027" target="_blank">27</a>,<a href="http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.3002921#pbio.3002921.ref049" target="_blank">49</a>] were used as template sequences for comparative genomics analysis.</p>