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Phylogenetic and Transcriptomic Analysis of Chemosensory Receptors in a Pair of Divergent Ant Species Reveals Sex-Specific Signatures of Odor Coding

Figure 4

Phylogenetic relationships of Hymenoptera Ir genes.

A maximum-likelihood tree of hymenopteran Ir genes estimated by using RAxML with Le-Gascuel (LG) model. Reliability of internal nodes was evaluated by 100 bootstrap replicates. Grey round dots indicate well-supported clades of “antennal” or “divergent” IRs (bootstrap value ≥80). Bootstrap values ≥70 are shown for relationships among the well supported clades. Subfamilies are named after the orthologs in L. humile and P. barbatus. Irs in different species are color-coded as following: N. vitripennis, black; A. mellifera, purple; H. saltator, blue; L. humile, yellow; P. barbatus, green; and C. floridanus, red. Clades for “antennal IRs” are highlighted in red. The clades for ionotropic glutamate receptors were collapsed.

Figure 4