Maintenance of genetic diversity of Atlantic salmon (Salmo salar) by captive breeding programmes and the geographic distribution of microsatellite variation

Koljonen, Marja‐Liisa; Tähtinen, Jaana; Säisä, Marjatta; Koskiniemi, Jarmo

doi:10.1016/s0044-8486(01)00808-0

Cited by 107 publications

(90 citation statements)

References 61 publications

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“…Six microsatellite loci (Ssa202, Ssa197, Ssa171, Ssa289, SSOSL417, SSOSL85) were amplified according to the PCR conditions of Koljonen et al (2002) and genotyped by using denaturing polyacrylamide gel electrophoresis or a CEQ8000 capillary sequencer (Beckman Coulter). For the dried scale samples, an increased number of PCR cycles (35-40) was used.…”

Section: Dna Analysesmentioning

confidence: 99%

Extensive immigration from compensatory hatchery releases into wild Atlantic salmon population in the Baltic sea: spatio-temporal analysis over 18 years

et al. 2005

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Genetic homogenization has been recognized as a serious threat in an increasing number of species, including many salmonid fishes. We assessed the rate and impact of immigration from the main hatchery stocks of Atlantic salmon in the Gulf of Bothnia into one of the largest wild salmon populations in the Baltic Sea, the River Vindelä lven, within a temporal framework of 18 years (from 1985-2003). We provide genetic evidence based on mtDNA and microsatellite markers, using mixed-stock analysis, that a large proportion (66%) of fin-damaged spawners (n ¼ 181) caught in the Ume/ Vindelä lven during 1997-2003 originated from the hatcheries in the Rivers Å ngermanä lven, Luleä lven and Ljusnan. The maximum-likelihood estimate of immigration rate from these hatcheries into the wild Vindelä lven population was 0.068 (95% CI 0.021-0.128) over the studied time period (1985)(1986)(1987)(1988)(1989)(1990)(1991)(1992)(1993)(1994)(1995)(1996)(1997)(1998)(1999)(2000)(2001)(2002)(2003) and reached up to a quarter (m ¼ 0.249, 95% CI 0.106-0.419) of the total population during 1993-2000. This resulted in significant (Po0.01) genetic homogenization trend between the wild Vindelä lven population and hatchery stocks of the Å ngermanä lven and Luleä lven. Our results demonstrate extensive straying from geographically distant hatchery releases into wild salmon population and emphasize the genetic risks associated with current large-scale stocking practices in the Baltic Sea. Heredity (2005) 95, 76-83.

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Section: Dna Analysesmentioning

confidence: 99%

Extensive immigration from compensatory hatchery releases into wild Atlantic salmon population in the Baltic sea: spatio-temporal analysis over 18 years

et al. 2005

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“…Microsatellites are codominant and produce potentially cumulative data. They are considered ideal markers for characterizing inbreeding and for pedigree studies and, therefore, have been widely used to monitor genetic diversity in aquaculture species (Koljonen et al, 2002;Skaala et al, 2004). However, penaeid shrimp microsatellites have sometimes proven difficult to type and validate, and null alleles are often observed (Valles-Jimenez et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Genetic variability of marine shrimp in the Brazilian industry

Maggioni

Coimbra

Costa

et al. 2013

Pesq. agropec. bras.

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-The objective of this work was to estimate the genetic variability level and distribution in Brazilian broodstocks of marine shrimp (Litopenaeus vannamei). Nine of the country's largest hatcheries were evaluated using codominant and highly polymorphic microsatellite markers. The results obtained from genotyping of ten microsatellite loci are indicative of genetic variability that is compatible with that found in wild populations of L. vannamei in Mexico and Central America. A possible explanation is the highly diversified and relatively recent origin of the available broodstocks. Bayesian analysis detected a signal for five founding populations. The distribution of genetic distances partially reflects geographical location, and this information will be useful for the creation of new broodstocks. Therefore, L. vannamei genetic variability among nine of the largest national hatcheries can be considered high.Index terms: Litopenaeus vannamei, aquaculture, microsatellite, shrimp farming. Variabilidade genética do camarão marinho na indústria brasileiraResumo -O objetivo deste trabalho foi estimar o nível e a distribuição da variabilidade genética em reprodutores brasileiros do camarão marinho (Litopenaeus vannamei). Nove dos maiores laboratórios de maturação do país foram analisados por meio de marcadores microssatélites codominantes e altamente polimórficos. Os resultados obtidos a partir da genotipagem de dez locos de microssatélites são indicativos de variabilidade genética compatível com aquela encontrada em populações naturais de L. vannamei no México e na América Central. Uma possível explicação é a origem altamente diversificada e relativamente recente dos plantéis disponíveis. A análise bayesiana detectou sinal correspondente a cinco populações originais. A distribuição das distâncias genéticas reflete parcialmente a localização geográfica, e essa informação será útil na formação de novos plantéis. Portanto, a variabilidade genética de L. vannamei entre nove dos maiores laboratórios de maturação nacionais pode ser considerada alta.Termos para indexação: Litopenaeus vannamei, aquacultura, microssatélite, carcinicultura.

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“…This is important, because the escape of hatchery stocks may pose a threat to the genetic diversity and/or genetic structure of natural populations (Clifford et al, 1998;Koljonen et al, 2002;Ma et al, 2011). Therefore, to prevent escape events, it is necessary to improve the genetic management and conservation plan for this species.…”

Section: Discussionmentioning

confidence: 99%

Genetic structure and diversity in natural and stocked populations of the mandarin fish (Siniperca chuatsi) in China

Mu¹,

Tian²,

Xf³

et al. 2015

Genet. Mol. Res.

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ABSTRACT. The Chinese perch, or mandarin fish (Siniperca chuatsi), is a freshwater fish that is endemic to East Asia. In this study, we investigated the genetic diversity and structure of nine natural mandarin fish populations (from the Yangtze River and Amur River basins) and six hatchery stocks (from central and south China) using microsatellite markers. The results show that the genetic diversity of the Yangtze River populations was high and stable, and genetic differences between them were not significant. In contrast, a low level of genetic diversity and strong genetic structure were detected in the Amur River population. These results suggest that the Yangtze River region and the Amur River region should be treated as two separate units in conservation programs. The hatchery stocks exhibited low genetic diversity and significant genetic differentiation compared to natural populations; this may result in a significant impact on the species if escape events occur. Therefore, a scientific aquaculture management strategy is necessary for the longterm development of hatcheries.

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Maintenance of genetic diversity of Atlantic salmon (Salmo salar) by captive breeding programmes and the geographic distribution of microsatellite variation

Cited by 107 publications

References 61 publications

Extensive immigration from compensatory hatchery releases into wild Atlantic salmon population in the Baltic sea: spatio-temporal analysis over 18 years

Extensive immigration from compensatory hatchery releases into wild Atlantic salmon population in the Baltic sea: spatio-temporal analysis over 18 years

Genetic variability of marine shrimp in the Brazilian industry

Genetic structure and diversity in natural and stocked populations of the mandarin fish (Siniperca chuatsi) in China

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