Figure 4
Phylogenetic analyses of chitobiases in molluscs on 1066 amino acid residues. (a) Schematic representations of the domain structures of chitobiases. (b) Bayesian phylogenetic estimation for chitobiases in molluscs using the concatenated sequences of CHB_HEX domain (IPR004866), Glyco_hydro_20b domain (IPR015882), Glyco_hydro_20 domain (IPR015883) and CHB_HEX_C domain (IPR004867). (c) Stage-specific expression of the larval chitobiase during development in C. gigas (blue) and P. fucata (orange)13,39,59. Polychotomy is generated if the posterior probability value of the node is < 50. Posterior probability values are shown if ≥ 50, and marked with black dots if ≥ 80. SMPs are indicated by blue (C. gigas) and orange (P. fucata) arrowheads. The question mark indicates that whether or not the gene is encoding an SMP is uncertain. Cgi, Crassostrea gigas; Pfu, Pinctada fucata; Lgi, Lottia gigantea; Obi, Octopus bimaculoides. Lan, Lingular anatina; Dp, duplication.
