First evidence of autotriploidization in sterlet (Acipenser ruthenus).

摘要: Polyploidization has played an important role in vertebrate evolution. Acipenseridae bring clear examples of polyploidy ancestry and, also, polyploidization seems to be ongoing process these fishes. In the present study, genetic origin six triploid specimens morphologically determined as Acipenser ruthenus from commercial aquaculture was analyzed using a combination mitochondrial and nuclear markers. A further five successive statistical analyses including median joining DNA control region sequences, principal coordinate analysis (PCA), factorial correspondence (FCA), STRUCTURE assignation, NewHybrids status determination for microsatellite data were applied clarification one extra chromosome set added triploids genomes. Although interspecific hybridization had been suggested source triploids, showed that investigated originate autotriploidization rather than hybridization. Therefore, we conclude molecular markers with suitable should used verify unusual ploidy level. Evidently, such approach is critically essential aquaculture, where very common usually detected by changes levels only.