To further extend our understanding of the mechanism causing the current nearly extinct status of the baiji (Lipotes vexillifer). one of the most critically endangered species in the world. genetic diversity at the major histocompatibility complex (MHC) class II DRB locus was investigated in the baiji. Nine highly divergent DRB alleles were identified in 17 samples. https://www.marcelovicente.com/product-category/semi-permanent/