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Figure 7 | Genome Biology

Figure 7

From: Comparative genomic analysis of the Tribolium immune system

Figure 7

Phylogenetic analysis of class B SRs (SR-Bs). The aligned central parts, including the CD36 domain, of sixteen Tribolium (Tc), eight Drosophila (Dm), eight Anopheles (Ag) and three Apis (Am) SR-B sequences are used for building the unrooted tree (upper panel). For simplicity, the other members of class B SRs from Drosophila (seven) and Anopheles (four) are not included in this analysis. Lineage-specific expansion (shaded yellow) is confirmed in the complete tree that includes all SR-Bs from the four species. The expansion is consistent with their chromosomal locations (lower panel). Pink arrowheads indicate nodes with bootstrap values exceeding 800 (from 1,000 trials), whereas green bars connect the putative orthologs with 1:1, 1:1:1 or 1:1:1:1 relationship.

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