Fig. 3From: Polymorphism of MHC class IIB in an acheilognathid species, Rhodeus sinensis shaped by historical selection and recombinationPhylogenetic placement of Rhsi-DAB β1 domain sequences among the MHC class IIB alleles of major telosts and vertebrates. A total of 44 vertebrate species were used as outgroup. Bayesian inference tree was reconstructed under GTR + I + G modelBack to article page