Population genetics of French brown trout (Salmo trutta L): large geographical differentiation of wild populations and high similarity of domesticated stocks

Krieg, Francine; Guyomard, René

doi:10.1186/1297-9686-17-2-225

Cited by 118 publications

(112 citation statements)

References 13 publications

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“…Lack of gene flow concomitant with small effective population size resulted in a loss of genetic variation. Our GST value (GST= 0.198) proved lower than that found in brown trout from France (Krieg & Guyomard, 1985), Greece (Karakousis & Triantaphyllidis, 1990), Spain (Garcia-Mann et a!., 1991; Martinez et a!., 1993), Britain, Ireland, Norway, Sweden and Iceland (Ferguson, 1989), demonstrating that partitioning of gene diversity in southwest Germany differed from the situation observed in those quoted populations. Only Danish populations in tributaries of Lake Hald revealed still lower GST values (GST=O.O47) (Møller Hansen eta!., 1993), whereas GST= 0.11 was observed for Danish brown trout from the Limfjord catchment (Landbo & Persson, 1987cited in Møller Hansen et al, 1993.…”

Section: Discussioncontrasting

confidence: 61%

“…On a regional scale, there is only a weak correlation of genetic distances between local trout populations and geographical distances separating the respective stocks, suggesting a complex metapopulation structure for the species (Ryman, 1983;Ferguson, 1989). On a larger geographical scale, substantial differences have been reported between Mediterranean and Atlantic populations of France (Krieg & Guyomard, 1985) and between brown trout from the *Correspondence…”

Section: Introductionmentioning

confidence: 99%

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Allozyme variability of brown trout (Salmo trutta L.) populations across the Rhenanian–Danubian watershed in southwest Germany

1995

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Using horizontal agarose thin layer gel electrophoresis, 35 allozyme loci were screened in 233 brown trout (Salmo trutta L.) from 11 populations in southwest Germany across the RhenanianDanubian watershed. Polymorphism was found at 10 loci, with stocked populations exhibiting significantly increased polymorphism compared with unmanaged stocks (P= 0.2 19 vs. P= 0.132). Standard genetic distances between populations from different brooks averaged at D =0.01. Of the total gene diversity of GST =0.198, only a negligible amount partitioned between Rhenanian and Danubian drainages (GGT= 0.0 10). One biallelic locus, LDH5*, indicated river-specific allele frequencies, with the allele LDH-5 *105 being markedly more frequent within the Danubian drainage system. In contrast, LDH-5 *100 was close to fixation in the Rhenanian populations. This locus suggests a phylogeographical relationship of Danubian trout from southwest Germany with brown trout from southeastern Europe rather than with conspecifics of adjacent Rhenanian origin.

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Section: Discussioncontrasting

confidence: 61%

Section: Introductionmentioning

confidence: 99%

Allozyme variability of brown trout (Salmo trutta L.) populations across the Rhenanian–Danubian watershed in southwest Germany

1995

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“…Nevertheless, Osinov (1984) found (Ferguson & Fleming, 1983). This is more apparent if we consider the results of F-statistics (Table 4) French populations (Krieg & Guyomard, 1985).…”

Section: Locusmentioning

confidence: 96%

“…The first studies on the genetic structure of this species, using allozymic data, were performed on Population genetics studies on brown trout from Mediterranean drainages indicate that these populations are genetically distinct from Atlantic populations (Krieg & Guyomard, 1985;Guyomard, 1989; Garcia-Mann et a!., 1991). Another important feature of the Mediterranean populations, revealed by these studies, was their high degree of genetic diversity Karakousis & Triantaphyllidis, 1990).…”

Section: Introductionmentioning

confidence: 99%

Genetic divergence and phylogenetic relationships among Salmo trutta L. (brown trout) populations from Greece and other European countries

1996

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In order to clarify the genetic structure and the phylogenetic relationships among brown trout (Satmo trutta) populations from Greece and other European countries starch gel electrophoresis was used. The populations come from various rivers from Greece and other European countries, flowing to the Atlantic or to the Mediterranean. Eleven enzymic systems were investigated. These correspond to 26 putative loci. A high degree of genetic polymorphism was found. The percentage of polymorphic loci ranged from 3.8 to 34.6 and the degree of expected heterozygosity from 0.016 to 0.1. F-statistics and clustering analyses indicated the existence of a high degree of differentiation. This differentiation is mainly between the Atlantic and the Mediterranean populations. Furthermore the Mediterranean populations seem to be divided into two groups. One includes the western Mediterranean populations and populations from western Greece and the other north-eastern Greek populations. The latter seem to be related to other Balkan populations and probably to Danubian or Black Sea populations. These results support the idea of two different lineages of Mediterranean brown trout populations, one of which is probably of aboriginal origin.

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“…Collectively, analyses of allozyme variation have revealed that genetically brown trout is one of the most highly structured fish species with more than 55 per cent of the total genetic diversity distributed among populations in some regions (Krieg & Guyomard, 1985;Apostolidis et al, 1996). Recent advances in *Correspondence tThis paper is dedicated to the memory of the late Dr Y. Karakousis by both his student (A.A.) and his professor (CT.).…”

Section: Introductionmentioning

confidence: 99%

Genetic differentiation and phylogenetic relationships among Greek Salmo trutta L. (brown trout) populations as revealed by RFLP analysis of PCR amplified mitochondrial DNA segments

1996

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The genetic differentiation and phylogenetic relationships of 13 populations (11 from Greece, one from Albania and one from France) of brown trout (Salmo trutta L.) were investigated at the mtDNA level. RFLP analysis of four segments of mitochondrial DNA (D-loop, cytochrome b and ND-5!6) amplified by PCR was used. Seven of 14 restriction endonucleases were found to detect variability in the ND-516 regions, whereas four and two out of 17 and 16 were polymorphic in the D-loop and cytochrome b, respectively. Eleven different haplotypes were observed. The observed interpopulation diversity was very high (mean = 1.65 per cent), whereas the intrapopulation diversity was low in most cases (mean =0.063 per cent). Five phylogenetic assemblages were identified. The results demonstrate that Greece is one of the regions where brown trout display very high levels of genetic diversity. Most populations were genetically very distinct, possessing private mtDNA genotypes. Therefore, they represent unique gene pools which may warrant individual recognition for conservation and management. The genetic relationships among populations suggested by mtDNA data were not in accordance with allozyme data. This study illustrates the importance of considering the historical biogeography of a species in order to understand its population genetic structure. It also reinforces the view that mtDNA analysis represents a powerful tool to study past and present demographic phenomena.

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Population genetics of French brown trout (Salmo trutta L): large geographical differentiation of wild populations and high similarity of domesticated stocks

Abstract: SummaryThe genetic variability of 7 fish-farm strains and 14 wild populations of brown trout was studied by electrophoretic analysis of 23 enzyme systems coded for by 52

Cited by 118 publications

References 13 publications

Allozyme variability of brown trout (Salmo trutta L.) populations across the Rhenanian–Danubian watershed in southwest Germany

Allozyme variability of brown trout (Salmo trutta L.) populations across the Rhenanian–Danubian watershed in southwest Germany

Genetic divergence and phylogenetic relationships among Salmo trutta L. (brown trout) populations from Greece and other European countries

Genetic differentiation and phylogenetic relationships among Greek Salmo trutta L. (brown trout) populations as revealed by RFLP analysis of PCR amplified mitochondrial DNA segments

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