Figure 1From: Evolution of MHC class I genes in the endangered loggerhead sea turtle (Caretta caretta) revealed by 454 amplicon sequencingNeighbor-joining trees. (A) based on the mtDNA control region of five reptile and one bird species. (B) based on the MHC class I based on the same species ( Node values (in %) are obtained from 1000 bootstraps). Although (A) shows species clustered together, (B) demonstrates trans-species polymorphism of the MHC class I gene in reptiles.Back to article page