Fig. 3

Barplot of proportions of TE classes present in medaka (a-c) or Xiphophorus (d-f). Medaka: piRNA reference set (a, dark bars), in both somatic tissue and testis (b, dark bars) and in testis only (c, dark bars) in comparison to all known medaka TEs (light bars). DNA TEs are significantly up-regulated in the reference and in piRNA clusters that are present in both somatic cells and testis, whereas the group comprising unknown TEs is significantly down-regulated in the soma and testis and testis only. Xiphophorus: piRNA reference set (d, dark bars), in both somatic tissue and testis (e, dark bars) and in testis only (f, dark bars) in comparison to all known Xiphophorus TEs (light bars). LINEs and SINEs are significantly up-regulated in all data sets, whereas the group comprising DNA TEs is significantly down-regulated in testis. Unknown TEs are significantly down-regulated in the reference set and in the group of piRNA clusters present in soma and testis. * p.value <0.1, ** p.value < 0.05