Effects of inbreeding on growth and reproductive traits in rainbow trout (Oncorhynchus mykiss)

Su, Guosheng; Liljedahl, Lars‐Erik; Gall, G. A. E.

doi:10.1016/0044-8486(96)01255-0

Cited by 109 publications

(77 citation statements)

References 15 publications

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“…Unless pedigree records are being maintained, there is a risk of selecting related individuals as parents and thereby increasing inbreeding (Norris et al 1999). The effect of inbreeding is connected to high inbreeding depression of survival and growth trait (Su et al 1996, Norris et al 1999. Breeding programs generally focusing on morphological data are insufficient for selection management.…”

Section: Discussionmentioning

confidence: 99%

Microsatellite DNA Variation in the Siberian Sturgeon, <I>Acipenser Baeri</I> (Actinopterygii, Acipenseriformes, Acipenseridae), Cultured in a Polish Fish Farm

Fopp‐Bayat¹

2010

Acta Icth et Piscat

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Fopp-Bayat D. 2010. Microsatellite DNA variation in the Siberian sturgeon, Acipenser baeri (Actinopterygii, Acipenseriformes, Acipenseridae), cultured in a Polish fish farm. Acta Ichthyol. Piscat. 40 (1): 21-25.Background. The Siberian sturgeon, Acipenser baeri, is one of the most important sturgeon species cultured in Poland. The effective management of aquaculture production of this species requires contemporary knowledge of broodstock structure, mating patterns, and genetic diversity of broodstock. The aim of the present study was the application of microsatellite DNA analysis for estimation of gene diversity in the Siberian sturgeon farmed at a Polish fish farm. Materials and Methods. Fin clips were randomly sampled from 94 specimens of Siberian sturgeon broodstock reared at the Wąsosze Fish Farm near Konin, Poland. The analysed broodstock has been kept there since 1996, with new specimens being introduced annually. The fish were studied in 2007-2008. Genomic DNA for amplification of microsatellite loci was extracted using Chelex 100. Six microsatellite loci were amplified for examination of the genetic variability of the studied fish.Results. Within 94 individuals of the Siberian sturgeon, a total of 74 alleles were detected in six polymorphic microsatellite loci. The number of alleles per locus ranged from 8 to 18, with an average allele number being 12.The genetic diversity of six microsatellite loci varied from 0.686 to 0.811. Conclusion. This technology has great potential for use in aquaculture of sturgeon fish, especially when levels of genetic variation could be monitored and inbreeding controlled in commercial breeding programs.

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Section: Discussionmentioning

confidence: 99%

Microsatellite DNA Variation in the Siberian Sturgeon, <I>Acipenser Baeri</I> (Actinopterygii, Acipenseriformes, Acipenseridae), Cultured in a Polish Fish Farm

Fopp‐Bayat¹

2010

Acta Icth et Piscat

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“…Clutch size mirrors reproductive effort in threespine stickleback (Baker et al, 1998Wootton and Fletcher, 2009), with population-level correlations between these traits ranging from 0.79 to 0.90 (N = 83 populations; JA Baker, unpublished data). High correlations between these traits are typical other species as well (Su et al, 1997;Kinnison et al, 2001). As with reproductive effort, clutch size is primarily a function of female size, and under a normal ration does not change appreciably across spawnings (Wootton and Fletcher, 2009;JA Baker, personal observation).…”

Section: Clutch Sizementioning

confidence: 99%

Life-history plasticity in female threespine stickleback

et al. 2015

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The postglacial adaptive radiation of the threespine stickleback fish (Gasterosteus aculeatus) has been widely used to investigate the roles of both adaptive evolution and plasticity in behavioral and morphological divergence from the ancestral condition represented by present-day oceanic stickleback. These phenotypes tend to exhibit high levels of ecotypic differentiation. Population divergence in life history has also been well studied, but in contrast to behavior and morphology, the extent and importance of plasticity has been much less well studied. In this review, we summarize what is known about life-history plasticity in female threespine stickleback, considering four traits intimately associated with reproductive output: age/size at maturation, level of reproductive effort, egg size and clutch size. We envision life-history plasticity in an iterative, ontogenetic framework, in which females may express plasticity repeatedly across each of several time frames. We contrast the results of laboratory and field studies because, for most traits, these approaches give somewhat different answers. We provide ideas on what the cues might be for observed plasticity in each trait and, when possible, we inquire about the relative costs and benefits to expressed plasticity. We end with an example of how we think plasticity may play out in stickleback life history given what we know of plasticity in the ancestor.

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“…However, this type of cross should also give a higher relative value to an inbred line, compared with its value as a pure line. It is well known that selection tends to increase inbreeding, and that inbreeding depression on growth exists in fish [5,30,36]. If this was the case here, this would tend to increase the contrast between SEL and CON when crossed with another population (the SY line).…”

Section: Discussionmentioning

confidence: 99%

“…-Inbreeding may develop during the selection experiment, and have an adverse effect on growth rate (−1.5 to −8% per 0.10 increase of F, the inbreeding coefficient [5,30,36]). Since high selection intensities are easy to apply in fish due to their fertility, they are especially sensitive to inbreeding during selection.…”

Section: Introductionmentioning

confidence: 99%

Enhanced individual selection for selecting fast growing fish: the ?PROSPER? method, with application on brown trout (Salmo trutta fario)

et al. 2004

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-Growth rate is the main breeding goal of fish breeders, but individual selection has often shown poor responses in fish species. The PROSPER method was developed to overcome possible factors that may contribute to this low success, using (1) a variable base population and high number of breeders (Ne > 100), (2) selection within groups with low non-genetic effects and (3) repeated growth challenges. Using calculations, we show that individual selection within groups, with appropriate management of maternal effects, can be superior to mass selection as soon as the maternal effect ratio exceeds 0.15, when heritability is 0.25. Practically, brown trout were selected on length at the age of one year with the PROSPER method. The genetic gain was evaluated against an unselected control line. After four generations, the mean response per generation in length at one year was 6.2% of the control mean, while the mean correlated response in weight was 21.5% of the control mean per generation. At the 4th generation, selected fish also appeared to be leaner than control fish when compared at the same size, and the response on weight was maximal (≈130% of the control mean) between 386 and 470 days post fertilisation. This high response is promising, however, the key points of the method have to be investigated in more detail.Salmo trutta / selective breeding / aquaculture / genetics / individual selection

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Effects of inbreeding on growth and reproductive traits in rainbow trout (Oncorhynchus mykiss)

Cited by 109 publications

References 15 publications

Microsatellite DNA Variation in the Siberian Sturgeon, <I>Acipenser Baeri</I> (Actinopterygii, Acipenseriformes, Acipenseridae), Cultured in a Polish Fish Farm

Microsatellite DNA Variation in the Siberian Sturgeon, <I>Acipenser Baeri</I> (Actinopterygii, Acipenseriformes, Acipenseridae), Cultured in a Polish Fish Farm

Life-history plasticity in female threespine stickleback

Enhanced individual selection for selecting fast growing fish: the ?PROSPER? method, with application on brown trout (Salmo trutta fario)

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