Biopolym. Cell. 2020; 36(4):294-303.
Genomics, Transcriptomics and Proteomics
Genetic variation and phylogenetic relationships among domesticated and wild paddlefish (Polyodon spathula) populations
1Kurta K. M., 1Malysheva O. O., 2Skrypkina I. Ya.
  1. Ukrainian laboratory of quality and safety of AIC products, National University of Life and Environmental Sciences of Ukraine,
    7, Mashinobudivnykiv Str., Chabany village, Kyiv region, Ukraine, 08162
  2. Institute of Molecular Biology and Genetics, NAS of Ukraine
    150, Akademika Zabolotnoho Str., Kyiv, Ukraine, 03143


Aim. To determine the genetic variation and phylogenetic relationships among domesticated paddlefish populations from Ukraine and Poland with wild populations from the United States using microsatellite DNA markers. Methods. In total, 105 paddlefish individuals were analyzed using PCR technics, capillary electrophoresis, and statistical methods. Results. The evaluated mean number of alleles per locus (Na) varied from 5.5 to 6.6 in the Polish and Ukrainian paddlefish stocks, respectively, whereas two-fold lower genetic polymorphism was demonstrated if compared to that found in wild population from the USA (11.1 alleles per locus). The mean observed (Ho) heterozygosity estimated in Ukrainian populations (0.709) was relatively close to those in the Polish (0.809) and wild (0.817) populations . Close genetic relationships were observed among the studied Ukrainian populations. The measured genetic similarity ranged from 0.908 (among populations from Kherson and Chernihiv regions) to 0.981 (among populations from Chernihiv and Vinnytsia regions). [The] Nei genetic distances ranged from 0.019 (populations from Chernihiv and Vinnytsia regions) to 0.096 (populations from Kherson and Chernihiv regions). The constructed dendrogram demonstrated the genetic differences among hatchery-reared and natural paddlefish populations, which were separated into two single clusters according to their geographical origin.Conclusion. It has been revealed that Polish paddlefish population was more genetically distant from the studied Ukrainian populations of this species, which confirms the formation of Ukrainian and Polish populations from different parental individuals. The results obtained allow us to consider the investigated fish groups as a potential source of the exchange and enrichment of genetic resources of the paddlefish populations.
Keywords: paddlefish Polyodon spathula, DNA–markers, microsatellite, polymerase chain reaction, alleles, phylogenetic analysis


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