PCA analysis of <i>S. lycopersicum</i>.

<p>PCA analysis of the <i>S. lycopersicum</i> samples. In this case, as in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0048198#pone-0048198-g001" target="_blank">Figure 1</a>, panels A and B represent projections along different principal components. The colors and marker shapes represent the different, mainly geographical, groups in which <i>S. lycopersicum</i> has been divided and which are specified in the legend of <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0048198#pone-0048198-g001" target="_blank">Figure 1</a>.