Fig. 6

Phylogeny of TAPBP, TAPBPR and TAPBPL amino acid sequences from selected species. The evolutionary history was inferred by using the Maximum Likelihood method based on the Whelan and Goldman model [77]. The tree is drawn to scale, with branch lengths measured in the number of substitutions per site. The percentage of trees in which the associated taxa clustered together (100 bootstrap trials) are shown next to the branches. All positions with less than 95% site coverage were eliminated. Sequence references are as follows: Atlantic salmon (Salmo salar) TAPBPa_#C NP_001117077.1, TAPBPR NP_001133983.1, TAPBPL1a XP_014069540.1, TAPBPL1b XP_014017660.1, TAPBPL2 XP_014062182.1; Northern pike (Esox Lucius) TAPBP XP_010899738.2; Zebrafish (Danio rerio) TAPBP GDQH01003123.1, TAPBPR XP_001919985.2, TAPBPL AAI71514.1; Medaka (Oryzias latipes) TAPBPR XP_011483883.1, TAPBPL XP_004075780.1; Spotted gar (Lepisosteus oculatus) TAPBP GFIM01016833, TAPBPR XP_015193320.1, TAPBPL GFIM01040944.1; Frog (Xenopus laevis) TAPBPL XP_018100952.1; Turtle (Chrysemys picta bellii) TAPBPL XP_005298961.1; Chicken (Gallus gallus) TAPBP1 NP_001029988.2, TAPBPR NP_001026543.1, TAPBPL merged transcripts BU342879.1, BU369515.1 and BX257449.3; Kiwi (Apteryx australis mantelli) TAPBPL XP_013817376.1; Opossum (Monodelphis domestic) TAPBPL XP_007485846.1; Human (Homo sapiens) TAPBPR NP_060479.3, TAPBP NP_003181.3. See Additional file 1: Text S1 and Additional File 1: Text S4 for sequences and amino acid alignment. The tree is unrooted and some bootstrap values are not shown for claritys