Genetic consequences of pond production of a pikeperch (Sander lucioperca L.) stock with natural origin: the effects of changed selection pressure and reduced population size
The pikeperch (Sander lucioperca L.) possesses great potential for diversifying European aquaculture. However, studies on the genetic risk of stocking natural waters with farmed individuals of this species have been limited. Even the effect of pond culture on the genetic composition of stocks with n...
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PeerJ Inc.
2020-03-01
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| Online Access: | https://peerj.com/articles/8745.pdf |
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| author | Tamás Molnár Ildikó Benedek Balázs Kovács Attila Zsolnai István Lehoczky |
| author_facet | Tamás Molnár Ildikó Benedek Balázs Kovács Attila Zsolnai István Lehoczky |
| author_sort | Tamás Molnár |
| collection | DOAJ |
| description | The pikeperch (Sander lucioperca L.) possesses great potential for diversifying European aquaculture. However, studies on the genetic risk of stocking natural waters with farmed individuals of this species have been limited. Even the effect of pond culture on the genetic composition of stocks with natural-origin has not yet been determined. Our study aimed to compare the genetic variability of a wild living pikeperch population, a pond cultured broodstock (originating from the wild population) and its offspring generation. We also aimed to detect the potential signs of selection using three different methods. By analyzing the molecular data with 14 microsatellite markers, we illustrated that the impact of pond culture on the genetic diversity of fish stocks is similar to hatchery rearing due to its diversity reducing effect caused by using lower effective population sizes. Although the heterozygosity was similar in all populations (Ho = 0.68–0.71), the average number of alleles and allelic richness were significantly lower in the pond cultured stocks (NA = 7.5 and 6; AR = 7.5 and 5.9) compared to the wild population (NA = 11.00, AR = 10.47). Despite the semi-natural conditions of the present study, we detected changing selection pressure in one of the 14 microsatellite markers. |
| first_indexed | 2024-03-09T06:23:47Z |
| format | Article |
| id | doaj.art-5d14d3e26b9040a5a7e3c69ee67ce9b6 |
| institution | Directory Open Access Journal |
| issn | 2167-8359 |
| language | English |
| last_indexed | 2024-03-09T06:23:47Z |
| publishDate | 2020-03-01 |
| publisher | PeerJ Inc. |
| record_format | Article |
| series | PeerJ |
| spelling | doaj.art-5d14d3e26b9040a5a7e3c69ee67ce9b62023-12-03T11:30:46ZengPeerJ Inc.PeerJ2167-83592020-03-018e874510.7717/peerj.8745Genetic consequences of pond production of a pikeperch (Sander lucioperca L.) stock with natural origin: the effects of changed selection pressure and reduced population sizeTamás Molnár0Ildikó Benedek1Balázs Kovács2Attila Zsolnai3István Lehoczky4Institute of Environmental Sciences and Nature Conservation, Kaposvár University, Kaposvár, HungaryInstitute of Environmental Sciences and Nature Conservation, Kaposvár University, Kaposvár, HungaryDepartment of Aquaculture, Szent István University, Gödöllő, HungaryResearch Institute for Animal Breeding, Nutrition and Meat Science (ATHK), National Agricultural Research and Innovation Centre, Herceghalom, HungaryInstitute for Farm Animal Gene Conservation, National Centre for Biodiversity and Gene Conservation, Gödöllő, HungaryThe pikeperch (Sander lucioperca L.) possesses great potential for diversifying European aquaculture. However, studies on the genetic risk of stocking natural waters with farmed individuals of this species have been limited. Even the effect of pond culture on the genetic composition of stocks with natural-origin has not yet been determined. Our study aimed to compare the genetic variability of a wild living pikeperch population, a pond cultured broodstock (originating from the wild population) and its offspring generation. We also aimed to detect the potential signs of selection using three different methods. By analyzing the molecular data with 14 microsatellite markers, we illustrated that the impact of pond culture on the genetic diversity of fish stocks is similar to hatchery rearing due to its diversity reducing effect caused by using lower effective population sizes. Although the heterozygosity was similar in all populations (Ho = 0.68–0.71), the average number of alleles and allelic richness were significantly lower in the pond cultured stocks (NA = 7.5 and 6; AR = 7.5 and 5.9) compared to the wild population (NA = 11.00, AR = 10.47). Despite the semi-natural conditions of the present study, we detected changing selection pressure in one of the 14 microsatellite markers.https://peerj.com/articles/8745.pdfSander luciopercaPond cultureDiversity lossGenetic selectionMicrosatelliteRyman–Laikre effect |
| spellingShingle | Tamás Molnár Ildikó Benedek Balázs Kovács Attila Zsolnai István Lehoczky Genetic consequences of pond production of a pikeperch (Sander lucioperca L.) stock with natural origin: the effects of changed selection pressure and reduced population size PeerJ Sander lucioperca Pond culture Diversity loss Genetic selection Microsatellite Ryman–Laikre effect |
| title | Genetic consequences of pond production of a pikeperch (Sander lucioperca L.) stock with natural origin: the effects of changed selection pressure and reduced population size |
| title_full | Genetic consequences of pond production of a pikeperch (Sander lucioperca L.) stock with natural origin: the effects of changed selection pressure and reduced population size |
| title_fullStr | Genetic consequences of pond production of a pikeperch (Sander lucioperca L.) stock with natural origin: the effects of changed selection pressure and reduced population size |
| title_full_unstemmed | Genetic consequences of pond production of a pikeperch (Sander lucioperca L.) stock with natural origin: the effects of changed selection pressure and reduced population size |
| title_short | Genetic consequences of pond production of a pikeperch (Sander lucioperca L.) stock with natural origin: the effects of changed selection pressure and reduced population size |
| title_sort | genetic consequences of pond production of a pikeperch sander lucioperca l stock with natural origin the effects of changed selection pressure and reduced population size |
| topic | Sander lucioperca Pond culture Diversity loss Genetic selection Microsatellite Ryman–Laikre effect |
| url | https://peerj.com/articles/8745.pdf |
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