Genetic characterization and relatedness of wild and farmed Eurasianperch (Perca fluviatilis): Possible implications for aquaculture practices

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Genetic characterization and relatedness of wild and farmed Eurasianperch (Perca fluviatilis): Possible implications for aquaculture practices

Sana Ben Khadher [et al.] - Nama Orang;

Aquaculture of the Eurasian perch, Perca fluviatilis, in recirculating systems has emerged over the pastdecades to become a significant way of diversification for inland areas in Europe. The development of sucha production relies partly on the improvement of growth performance (i.e., reducing production costs),which requires suitable genetic management of broodstocks and the development of selective breedingprograms. In this context, the present study was undertaken assessing for the first time the genetic diver-sity of farmed stocks of perch. Twelve microsatellite loci were used to investigate the genetic diversityof nine farmed stocks (547 individuals) from two perch farms located in France and their supposedlywild founder population from Lake Geneva (394 individuals). First, the wild population displayed thelowest genetic diversity and differed genetically from all farmed populations except one, XB2. Second,genetic diversity did not decrease between farmed breeders and their potential offspring. However, in thethree groups of broodstock-offspring the number of alleles decreased by 10%, 21%, and 15%, respectively.In addition, effective population size decreased in all offspring groups. A family structuring was alsoobserved among broodstocks and their offspring, with an unequal family contribution being suspected.In the absence of parental information, these results attest to the utility of genetic tools to evaluate geneticdiversity and the necessity of a monitoring program to maintain genetic variability among farmed perch.Genetic variability among farmed stocks appears to be sufficient for perch production to be sustainableand selective breeding programs to be developed.

Keywords:Perca fluviatilisGenetic diversityDomesticationMicrosatellitesa

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Judul Seri: Aquaculture Reports
No. Panggil: -
Penerbit: : Elsevier., 2016
Deskripsi Fisik: Aquaculture Reports 3 (2016) 136–146
Bahasa: English
ISBN/ISSN: -
Klasifikasi: -
Tipe Isi: -
Tipe Media: -
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Edisi: -
Subjek: KIMIA
Info Detail Spesifik: -
Pernyataan Tanggungjawab: Wati/Agus

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FULL TEXT:Genetic characterization and relatedness of wild and farmed Eurasianperch (Perca fluviatilis): Possible implications for aquaculture practices

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