Fig. 1From: Rapid evolution of chemosensory receptor genes in a pair of sibling species of orchid bees (Apidae: Euglossini)Phylogenetic relationships of the 86 candidate E. dilemma and 85 E. viridissima Odorant Receptors (ORs) to Apis mellifera. The maximum likelihood tree was rooted by the OR co-receptor orthologs of all three species. Bootstrap values for branches with ≥50 % support are indicated. ORs marked in red correspond to the 10 orthologs with d N /d S  > 1 (Table 2; see main text for details). Symbols after the OR descriptors: C: C-terminus is missing, N: N-terminus is missing, F: gene model was manually assembled, P: pseudogene (after [54])Back to article page