Please use this identifier to cite or link to this item:
https://biore.bio.bg.ac.rs/handle/123456789/1690
Title: | The genetic status of the Hungarian brown trout populations: Exploration of a blind spot on the European map of Salmo trutta studies | Authors: | Ősz, Ágnes Horváth, Ákos Hoitsy, György Sipos, Dóra Kánainé Keszte, Szilvia Sáfrány, Anna Júlia Marić, Saša Palkó, Csaba Tóth, Balázs Urbányi, Béla Kovács, Balázs |
Keywords: | Hybridization;Lineage;Microsatellite;Mitochondrial DNA;Salmo trutta;Sex ratio | Issue Date: | 1-Jan-2018 | Rank: | M21 | Project: | Higher Education Institutional Excellence Program 1783-3/2018/FEKUTSRAT EFOP-3.6.3-VEKOP16-2017-00008 GOP-111-09/1-2010-0141 OTKA 105393 TÉT_15-1-2016-0008 Fishes as water quality indicators in open waters of Serbia |
Journal: | PeerJ | Abstract: | Copyright 2018 Ősz et al. Background. Analyses of the control region sequences of European brown trout populations’ mitrochondrial DNA have revealed five main evolutionary lineages (Atlantic, Danubian, Mediterranean, Adriatic, Marble) mostly relating to the main water basins; however, the hybridization between lineages were increasingly reported. Due to the hydrogeography of Hungary, wild populations should theoretically belong to the Danubian lineage, however, this has not been verified by genetic studies. Methods. In our study multiple molecular marker sets (mitochondrial sequence, microsatellites, PCR-RFLP of nuclear markers and sex marker) were used to investigate the genetic composition and population genetics of the brown trout populations in two broodstocks, six wild streams in Hungary and one Serbian population. Results. The admixture of Atlantic and Danubian lineages in these populations, except the Serbian population with pure Danubian origin, was observed by control region sequences of mitochondrial DNA and PCR-RFLP markers in the nuclear genome, and one unpublished Danubian haplotype was found in Hungarian populations. A sex-specific marker revealed equal gender ratio in broodstocks and Kemence stream, whereas in other wild streams the proportion of female individuals were less than 50%. Structure and principal component analyses based on the alleles of microsatellite loci also revealed overlapping populations, however the populations were still significantly different from each other and were mostly in Hardy-Weinberg equilibrium. Discussion. Stocking and migration can have a significant genetic impact on trout populations of wild streams, however there are no guidelines or common practices for stocking of small streams in Hungary, thus the genetic background of these populations should be considered when developing conservation actions. |
URI: | https://biore.bio.bg.ac.rs/handle/123456789/1690 | ISSN: | 2167-8359 | DOI: | 10.7717/peerj.5152 |
Appears in Collections: | Journal Article |
Files in This Item:
File | Description | Size | Format | Existing users please |
---|---|---|---|---|
Osz ea 2018 - peerj-06-5152.pdf | 3.52 MB | Adobe PDF | Request a copy |
SCOPUSTM
Citations
5
checked on Nov 2, 2024
Page view(s)
2
checked on Nov 4, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.