Fig. 5From: Speciation and adaptive evolution reshape antioxidant enzymatic system diversity across the phylum NematodaPhylogenetic analyses of nematode and mammalian PHGPx. PHGPx from mammals was used as outgroup. Shape and color leaf decoration indicated clades and subclades, respectively, as depicted in Fig. 2. Scale bar represents the number of amino acid substitutions per siteBack to article page