Phylogenetic tree.

<p>Phylogenetic relationship of <i>Lepeophtheirus salmonis</i> AChE1a and AChE1b with other acetylcholinesterases from Insecta, Nematoda, Arachnidae and Veterbrata is shown. The phylogenetic tree was constructed using a MUSCLE alignment at the Phylogeney.fr platform (<a href="http://www.phylogeny.fr/version2_cgi/index.cgi" target="_blank">http://www.phylogeny.fr/version2_cgi/index.cgi</a>). The clustering of the AChE1 and AChE2-type of enzymes are indicated by boxes. The AChE1a and AChE1b of <i>L</i>. <i>salmonis</i> are also boxed. Branch support values are given in %. AChE1a and AChE1b were clustered with other AChE1 proteins and were clearly separated from AChE2 proteins in the phylogenetic tree.</p>