Issue |
Aquat. Living Resour.
Volume 34, 2021
|
|
---|---|---|
Article Number | 3 | |
Number of page(s) | 17 | |
DOI | https://doi.org/10.1051/alr/2021005 | |
Published online | 18 March 2021 |
Research Article
Genetic diversity and population structure of Tarek (Alburnus tarichi), an endemic species to the Lake Van basin, Turkey
1
Faculty of Marine Science, Department of Fisheries Technology Engineering, Ordu University, Fatsa, Ordu 52400, Turkey
2
Central Fisheries Research Institute, Ministry of Agriculture and Forestry, Trabzon, Turkey
3
Faculty of Arts and Sciences, Department of Biology, Recep Tayyip Erdoğan University, Rize, Turkey
* Corresponding author: yciftci@odu.edu.tr
Handling Editor: Roman Wenne
Received:
16
November
2020
Accepted:
18
February
2021
In this study, the genetic relationships of 804 tarek (Alburnus tarichi) samples from a total of 18 populations, including the potamodromus and resident individuals from Lake Van basin in eastern Turkey, were studied by using nine microsatellite loci. A total of 93 alleles was detected, and the average number of alleles per locus was 10.3 ± 3.39. The mean estimated observed and expected heterozygosity were 0.340 ± 0.016 and 0.362 ± 0.015, respectively, which indicated a low level of polymorphism. After Bonferroni correction (P < 0.0027), the multi-locus test applied to each population revealed that 12 out of 18 populations were in Hardy-Weinberg equilibrium (HWE) (P = 0.0120–0.9981). Analysis of molecular variance (AMOVA) showed more than 76% genetic variability within individuals and 19% among populations, which was significantly higher than zero (FST = 0.19), and furthermore, a low level of genetic variation was observed among individuals within populations (4.84%: FIS = 0.06). Bayesian clustering analysis indicated that the total genetic variation grouped into 3 clusters. Additionally, the significance test results revealed that 11 of the 18 populations are threatened with extinction due to recent bottleneck events.We conclude that the tarek populations from the Lake Van basin can be classified into distinct genetic groups, based on microsatellite information. In addition, our results provide essential information for the development of a management plan that conserves the tarek's genetic diversity and achieves a sustainable fishery.
Key words: Tarek / Alburnus tarichi / genetic differentiation / van lake / alkaline lakes / microsatellite
© EDP Sciences 2021
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.