One DQB locus was also examined in 11 cetacean species, however, the finless porpoise and baiji have at least three DQB loci as manifested with three to five distinct sequences from some individuals.

• DQB基因在江豚和白鱀豚中至少存在3个座位，但在其他11个种鲸类只扩增出一个DQB座位。