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Characterization of the genetic structure of the brown trout (Salmo trutta) from “Braduljica” Fish Farm, Serbia

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Authors
Molerović, Nikola
Raskovic, Bozidar
Đedović, Radica
Ostojić Andrić, Dušica
Marković, Zoran
Marić, Saša
Article (Published version)
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Abstract
Due to the ecological concerns and preservation of genetic resources, the characterization of genetic structure of the brown trout (Salmo trutta) was carried out on the "Braduljica" fish farm. DNA was isolated from fin clips of 10 individuals, and after that molecular PCR-RFLP methods were used for distinguishing between Atlantic and Danubian lineages based on control region of the mitochondrial DNA (CR mtDNA) and lactate dehydrogenase gene of the nuclear DNA (LDH nDNA). Based on phenotypic characteristics it was estimated that out of 10 individuals included in this study five belonged to the allochtonous Atlantic lineage and remaining five belonged to the native Danubian lineage of brown trout. However, results of molecular analyses showed a high percentage of allochthonous genes among the individuals, which confirms the hybridization between these two lineages. Also, the results showed that the selection based on the phenotype is not adequate. In order to continue with pr...oper broodstock management, it is necessary to eliminate allochtonous individuals of the Atlantic lineage from the broodstock.

Keywords:
Salmo trutta / KR mtDNK / LDH nDNK / PCR / RFLP / selekcija
Source:
Biotechnology in Animal Husbandry, 2019, 35, 3, 289-299
Publisher:
  • Institute for Animal Husbandry, Belgrade-Zemun
Projects:
  • Improvement of production capacities of the carp (Cyprinus carpio L) using feeding and selective breeding programs (RS-31075)

DOI: https://doi.org/10.2298/BAH1903289M

ISSN: 1450-9156

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URI
http://r.istocar.bg.ac.rs/handle/123456789/657
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