2.10 | Whole-genome duplication
The homologous search in the Pse. libanotica genome was performed using BLASTP (E-value < 1e-5), and then MCScanX (http://chibba.pgml.uga.edu/mcscan2/) was used to identify syntenic blocks in the genome according to the gene location and blast results. For each gene pair in syntenic blocks, Ks values were calculated, and values of all gene pairs were plotted to identify putative whole-genome duplication events in Pse. libanotica .