Genetic diversity of common carp (Cyprinus carpio L.) in Vietnam using four microsatellite loci

Thai, Binh Thanh; Burridge, Christopher P.; Austin, Christopher M.

doi:10.1016/j.aquaculture.2007.05.017

Cited by 37 publications

(29 citation statements)

References 29 publications

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“…The obtained allelic and heterozygosity values were relatively high for all studied populations (H o = 0.692-0.881). Similar values were reported for both wild and domesticated common carp from Germany, Spain and some Balkan countries (H o = 0.640-0.840, Bartfai et al 2003;Kohlmann et al 2005), as well as for Russian breeders (Kohlmann et al 2005;Memis and Kohlmann 2006) and in some cases lower heterozygosity levels (Zhou et al 2004;Li et al 2007;Thai et al 2007) compared with those in Europe. The present results, however, are not in agreement with the data obtained by mitochondrial analysis on four of the studied populations (Imsiridou et al 2009).…”

Section: Discussionsupporting

confidence: 84%

“…However, most phylogeographic and population genetic studies were performed on farmed stocks (e.g., Desvignes et al 2001;Zhou et al 2004;Thai et al 2007) and the genetic structure of wild populations is poorly addressed (e.g., Kohlmann et al 2005;Mabuchi et al 2006;Haynes 2009;Haynes et al 2010). There is no available study focusing on the genetic stability and Ne over time for this species.…”

Section: Introductionmentioning

confidence: 97%

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Genetic monitoring and effects of stocking practices on small Cyprinus carpio populations

Lappa

Kalomoiris

Oikonomidis³

et al. 2011

Conserv Genet

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The ability to detect genetic differences both in space and time is crucial for conserving genetic variation. It can reveal genetic diversity and genetic composition changes of declining native populations that are supported through stocking with captive bred individuals. The present study was designed to analyse the temporal stability of a declining common carp (Cyprinus carpio) population from Lake Volvi (North Greece). Polymorphism was evaluated using seven microsatellite loci at two sampling time points (separated by 12 years). The genetic variability of four additional populations (from two rivers and two lakes) in Northern Greece was also investigated for comparison. Heterozygosity values (0.692-0.868) and allelic richness (8.530-11.148) were high for all studied populations and comparable to other European populations. However, the analysis of temporal common carp samples from Lake Volvi revealed a significant change in their genetic composition and admixture analysis demonstrated significant introgression of stocked individuals into the native population. Both temporal and point estimate methods revealed low effective size (Ne = 61-171.3) for this population, possibly a result of an ancient genetic bottleneck that led to population decline and/or recent anthropogenic interventions. This low Ne has rendered the native population vulnerable to alteration of its genetic composition. Our study demonstrates that enhancement programs should be applied cautiously, especially for small populations. Moreover, it underlines the need for temporal analyses, which may contribute to the evaluation of previous management policies and to future decision making.

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Section: Discussionsupporting

confidence: 84%

Section: Introductionmentioning

confidence: 97%

Genetic monitoring and effects of stocking practices on small Cyprinus carpio populations

Lappa

Kalomoiris

Oikonomidis³

et al. 2011

Conserv Genet

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show abstract

“…Previous reports in different fish species have confirmed that intensive domestic management stimulates the significant reduction of genetic diversity (Kohlmann et al 2007;Thai et al 2007, Ha et al 2009Na-Nakorn and Moiekun, 2009). Bottleneck events may occur, due to population isolation, reduction of effective number of breeders and/or genetic drift caused by a small number of founders (Harlt and Clark, 2007).…”

Section: Resultsmentioning

confidence: 74%

“…It is known that repeated selection within the same strains carries a risk of decreasing diversity when a small number of families and high mass selection intensities are used (Thai et al 2007). This reduced diversity could increase the inbreeding coefficient, resulting in an excess frequency of mating between relatives (Charlesworth, 2009), which may be induced by unintentional, intensive use of related breeders.…”

Section: Resultsmentioning

confidence: 99%

Inbreeding evidence in a traditional channel catfish (Ictalurus punctatus) hatchery in Mexico

Parra‐Bracamonte¹,

Sifuentes‐Rincón²,

Rosa-Reyna³

et al. 2011

Electro Journal of Biotech

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Background: Channel catfish are one of the most important aquaculture species raised for food purposes in Mexico. Two temporal samples were obtained from the largest channel catfish breeding hatchery in Mexico to identify changes in genetic diversity and inbreeding that are promoted by traditional hatchery management. Results: The genetic parameter analysis of 11 microsatellite loci showed no significant change in genetic diversity (p > 0.05). However, a significant heterozygosis deficiency was detected (p < 0.001), and genetic structure analysis indicated moderate differentiation between the temporally divided populations (FST = 0.08). A moderate level of inbreeding and a slight increase of the inbreeding coefficient from 0.23 to 0.27 were the result of traditional hatchery practices. To achieve an effective population size, the temporal approach resulted in a limited number of breeders to maintain genetic variability. Conclusions: Although no significant change in genetic diversity parameters was found, the heterozygote deficiency and low effective number of breeders suggest that there is a risk for increased inbreeding. Thus, we propose the need for controlled reproductive management and the establishment of genetic programs in hatcheries. Molecular tools can provide valuable information to facilitate the achievement of these goals.

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“…1 (RIA 1), or in the wild populations of Vietnamese common carp. Thai et al (2006Thai et al ( , 2007 attributed this finding to the successful dissemination of imported genetically improved stocks. The findings of Thai et al (2006Thai et al ( , 2007 indicated that the poor growth of common carp reported by farmers in Son La province was caused by a poor feed base and low water quality.…”

Section: Evaluation Of Implemented Modifications In the Pond Managemementioning

confidence: 99%

Improved Sustainable Aquaculture Systems for Small-Scale Farmers in Northern Vietnam

Pucher

Steinbronn

Mayrhofer

et al. 2012

Sustainable Land Use and Rural Development in Southeast Asia: Innovations and Policies for Mountainous Areas

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Genetic diversity of common carp (Cyprinus carpio L.) in Vietnam using four microsatellite loci

Cited by 37 publications

References 29 publications

Genetic monitoring and effects of stocking practices on small Cyprinus carpio populations

Genetic monitoring and effects of stocking practices on small Cyprinus carpio populations

Inbreeding evidence in a traditional channel catfish (Ictalurus punctatus) hatchery in Mexico

Improved Sustainable Aquaculture Systems for Small-Scale Farmers in Northern Vietnam

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