Histograms of (a) distribution of total plates on first 30 myomeres on each fish, (b) number of asymmetric myomeres, i.e. with only one plate.

<p>Shaded areas within bars show the proportion of <i>EDA</i> marker genotypes (see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0039843#pone-0039843-t001" target="_blank">Table 1</a>, Stn380) observed in the data.