Fig. 2From: Ancient gene duplications have shaped developmental stage-specific expression in Pristionchus pacificus Gene duplications in the HSP70 gene family. a Phylogenetic tree of HSP70 genes from C. elegans and P. pacificus. In P. pacificus, a cluster of six paralogous genes that have likely arisen by lineage-specific gene duplications shows high expression in early larvae (b), a second cluster of three paralogous genes shows also highest expression levels in early larvae (c)Back to article page