Figure 5
From: The components of the Daphnia pulex immune system as revealed by complete genome sequencing
Bayesian phylogenetic analysis of the glycosyl hydolase family 18 (GH18) domain from arthropod chitinase genes sequences. The number of GH18 domains in the chitinase genes analysed ranges from 1 to 5. For those genes containing more than one GH18 domain, they are labelled from 5' to 3' with A, B, C, D or E. Clade Ib consists of members that, based on sequence analysis, do not have the ability to hydrolyse chitin. Additional gene copies that cannot hydrolyse chitin are indicated with an asterisks (*). All gene members known to participate in some immune function are indicated in bold text.