The gene MYO15A is involved in the production of a protein included in the group of motor proteins known as myosins. Myosin XVA is located in the inner ear, the pituitary gland and other tissues, and has a substantial influence on the hearing process. Mutations in this gene cause amino acid substitutions in the conserved motor domain of the myosin chain, leading to shortening of the stereocilia in the hair cells, so that the function of myosin XVA is impaired. A research hypothesis was put forth that mutations in the gene responsible for the hearing process in animals of the Canidae family can cause hypoacusis, as well as substantial behavioural changes in dogs (ranging from timidity to aggressive behaviour). The study determined SNP polymorphism in a fragment of the gene MYO15A, which can cause hearing disorders or hypoacusis, in wild and farmed individuals of the Canidae family. Gen MYO15A je uključen u stvaranje proteina iz grupe motornih proteina - miozina. Miozin XVA je lociran u unutrašnjem uhu, hipofi zi i drugim tkivima, i značajno utiče na slušni proces. Mutacije u ovom genu izazivaju supstitucije aminokiselina u konzervisanom motornom domenu lanca miozina, što dovodi do skraćenja stereocilija slušnih ćelija, a kao posledica dolazi do poremećaja funkcije XVA miozina. Postavljena je istraživačka hipoteza koja je pretpostavljala da mutacije u genu koji je odgovoran za slušni proces kod životinja familije Canidae mogu da izazovu hipoakustiku kao i značajne promene u ponašanju pasa, od povučenosti i straha do agresivnosti. Ispitivanjem je determinisan SNP polimorfi zam u fragmentu gena MYO15A koji može da dovede do poremećaja sluha kako kod divljih tako i kod farmski uzgajanih životinja familije Canidae.