Figure 1.

Phylogenetic tree revealing the relative position of Northern pike Elovl5 according to proteins from other vertebrate orthologs, and rooted to Mortierella alpina PUFA elongase as outgroup. The tree was constructed on the DNA sequences extracted from GenBank using MEGA4 and applying the Neighbour Joining method. The numbers on the branches represent the frequencies (%) with which the presented tree topology was obtained after bootstrapping (10,000 iterations).

Carmona-AntoƱanzas et al. BMC Evolutionary Biology 2013 13:85   doi:10.1186/1471-2148-13-85
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