Fig. 2. : scheme of phylogenetic relationships among different trypanosomatids employed in this study based on several works. Bodo saltans was represented as an outgroup. Green and red branches represent the presence and loss of the domesticated gene, respectively. The black arrow indicates the ancestor where the gene was likely domesticated. Numbers in boxes near some nodes are references to the divergence time estimates in mya (millions years ago), as inferred by Lukes et al. (2014): 1 - 231-283 mya; 2 - 96-105 mya; 3 - 118-170 mya; 4 - 52-96 mya; 5 - 30-63 mya; 6 - 31-65 mya; 7 - 25-54 mya. Marks near nodes indicate the works that support that branching: * - Flegontov et al. (2016); # - Flegontov et al. (2013) and Lukes et al. (2014); ¥ - Stoco et al. (2014); ▲ - Kelly et al. (2014); • - Du et al. (1994), Teixeira et al. (2011) and Votýpka et al. (2012); ▀ - Harkins et al. (2016). Only some relationships from each work were shown.