Selection and Phylogenetics of Salmonid MHC Class I: Wild Brown Trout (Salmo trutta) Differ from a Non-Native Introduced Strain
Figure 5
Phylogenetics of the α1 domain.
A) Satr-UBA α1 sequences (blue) together with relevant outgroup sequences from S. salar (green) and O. mykiss (red). Novel Srahrevagh River sequences are represented by square nodes. Accession numbers are included in node labels. The number of plus signs after a sequences indicates the number of other Satr-UBA alleles which share this sequence in its entirety. α1 lineages are indicated using roman numerals. A C. idella UBA is included to highlight the distinct sub-lineages in LV, not as an outgroup, and these networks are unrooted. B) Possible α1 intradomain recombination event between typical α1 LIII sequences and sequences more similar to Satr-UBA*1301 giving rise to Sasa-UBA*0301. The α1 LI sequence is included as an outgroup. C) α1 LV sequences from S. trutta, S. salar and O. mykiss. Loops are observed in the network, affecting LVb sequences primarily. Note also in this network the extent of trans-species polymorphism in LVa sequences.