Genetic architecture of phytochemical traits inferred in natural hybrid zones of European <i>Populus</i> species.

<p>Seven chlorogenic acids, 13 salicinoids and 19 flavonoids (y axis) were tested for association with genetic markers (x axis) spread across all 19 chromosomes of <i>Populus</i> (roman numbers at the top) following an information theoretic approach [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0128200#pone.0128200.ref050" target="_blank">50</a>]. For each candidate locus, additive (▼) or dominant (▲) effects are documented. Symbol sizes represent PVE’s of each candidate locus (▲<15%, ▲15–30%, ▲>30%). For details see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0128200#pone.0128200.s008" target="_blank">S5 Table</a>.