Genetic analysis of female reproduction traits of farmed coho salmon (Oncorhyncus kisutch)

Gall, G. A. E.; Neira, Roberto

doi:10.1016/j.aquaculture.2004.01.029

Cited by 55 publications

(56 citation statements)

References 19 publications

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“…In general, some studies have found a moderate heritability estimate for reproductive traits. In studies with Pacific salmon (Oncorhynchus kisutch), Gall and Neira (2004) found the heritability estimates ranging from 0.24 to 0.33 for the interval of spawning between breeding and salmon length at spawning, respectively. In a study with rainbow trout (Oncorhynchus mykiss) performed by Su et al (1997), the heritability estimate for weight at spawning was low (0.09).…”

Section: Discussionmentioning

confidence: 99%

Genetic parameters in female reproductive traits of Nile tilapia (Oreochromis niloticus)

Yoshida

Oliveira²,

Kunita³

et al. 2017

An. Acad. Bras. Ciênc.

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Genetic parameters for reproductive traits in female Nile tilapia were estimated in this study using Bayesian inference method. The data set presented information from 451 Nile tilapia females that were evaluated at two different places in Maringá -Paraná -Brazil (hapas of 1 and 10 m³) and at one location in Alfenas -Minas Gerais -Brazil. A spawning examination was conducted once a week from October 2012 to March 2013 for a total of 23 weeks of evaluation. Single-trait analyses for spawning success, multiple spawning, spawning frequency, and volume of eggs/female were performed by using the software MTGSAM Threshold. The heritability estimates were 0.14, 0.16, 0.53, and 0.08 for spawning success, multiple spawning, spawning frequency and volume of eggs/female, respectively, indicating it is possible to achieve a substantial genetic gain using these reproductive traits as selection criteria.

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Section: Discussionmentioning

confidence: 99%

Genetic parameters in female reproductive traits of Nile tilapia (Oreochromis niloticus)

Yoshida

Oliveira²,

Kunita³

et al. 2017

An. Acad. Bras. Ciênc.

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“…Although heritability is population-and environment-specific, within-population variation in egg size is common in demersal egg-laying species such as salmon [33] and has been found to be similarly heritable in other species of Pacific salmonids [34,35]. If female salmon inherit the ability to provision eggs, then these maternal effects would increase the 'total heritability' of thermal tolerance and could accelerate any evolutionary response to the selection imposed by rising temperatures.…”

Section: Discussionmentioning

confidence: 99%

Indirect genetic effects underlie oxygen-limited thermal tolerance within a coastal population of chinook salmon

et al. 2014

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With global temperatures projected to surpass the limits of thermal tolerance for many species, evaluating the heritable variation underlying thermal tolerance is critical for understanding the potential for adaptation to climate change. We examined the evolutionary potential of thermal tolerance within a population of chinook salmon (Oncorhynchus tshawytscha) by conducting a full-factorial breeding design and measuring the thermal performance of cardiac function and the critical thermal maximum (CT max ) of offspring from each family. Additive genetic variation in offspring phenotype was mostly negligible, although these direct genetic effects explained 53% of the variation in resting heart rate ( f H ). Conversely, maternal effects had a significant influence on resting f H , scope for f H , cardiac arrhythmia temperature and CT max . These maternal effects were associated with egg size, as indicated by strong relationships between the mean egg diameter of mothers and offspring thermal tolerance. Because egg size can be highly heritable in chinook salmon, our finding indicates that the maternal effects of egg size constitute an indirect genetic effect contributing to thermal tolerance. Such indirect genetic effects could accelerate evolutionary responses to the selection imposed by rising temperatures and could contribute to the population-specific thermal tolerance that has recently been uncovered among Pacific salmon populations.

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“…Morphological, behavioral, and life history traits of sockeye salmon are shaped by both sexual and natural selection (see reviews in Taylor 1991;Wood 1995) and many such traits have an additive genetic basis in salmonids (e.g., morphology -Funk et al 2005;Keeley et al 2007, egg size- Gall and Neira 2004; but see Funk et al 2005, carotenoid conversion and flesh color -Withler 1986;Craig and Foote 2001, age at maturity- Gall et al 1988;Hankin et al 1993, spawning time-Siitonen andGall 1989;Quinn et al 2000). Parallel patterns of phenotypic divergence between fish spawning in beach and tributary habitats among nursery lakes has prompted definition of spawning ecotypes of sockeye salmon.…”

Section: Introductionmentioning

confidence: 99%

Recent local adaptation of sockeye salmon to glacial spawning habitats

Ramstad

Woody²,

Allendorf

2009

Evol Ecol

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Salmonids spawn in highly diverse habitats, exhibit strong genetic population structuring, and can quickly colonize newly created habitats with few founders. Spawning traits often differ among populations, but it is largely unknown if these differences are adaptive or due to genetic drift. To test if sockeye salmon (Oncorhynchus nerka) populations are adapted to glacial, beach, and tributary spawning habitats, we examined variation in heritable phenotypic traits associated with spawning in 13 populations of wild sockeye salmon in Lake Clark, Alaska. These populations were commonly founded between 100 and 400 hundred sockeye salmon generations ago and exhibit low genetic divergence at 11 microsatellite loci (F ST \ 0.024) that is uncorrelated with spawning habitat type. We found that mean P ST (phenotypic divergence among populations) exceeded neutral F ST for most phenotypic traits measured, indicating that phenotypic differences among populations could not be explained by genetic drift alone. Phenotypic divergence among populations was associated with spawning habitat differences, but not with neutral genetic divergence. For example, female body color was lighter and egg color was darker in glacial than non-glacial habitats. This may be due to reduced sexual selection for red spawning color in glacial habitats and an apparent trade-off in carotenoid allocation to body and egg color in females. Phenotypic plasticity is an unlikely source of phenotypic differences because Lake Clark sockeye salmon spend nearly all their lives in a common environment. Our data suggest that Lake Clark sockeye salmon populations are adapted to spawning in glacial, beach and tributary habitats and provide the first evidence of a glacial spawning ecotype in salmonids.Glacial spawning habitats are often young (i.e.,\200 years old) and ephemeral. Thus, local adaptation of sockeye salmon to glacial habitats appears to have occurred recently.

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Genetic analysis of female reproduction traits of farmed coho salmon (Oncorhyncus kisutch)

Cited by 55 publications

References 19 publications

Genetic parameters in female reproductive traits of Nile tilapia (Oreochromis niloticus)

Genetic parameters in female reproductive traits of Nile tilapia (Oreochromis niloticus)

Indirect genetic effects underlie oxygen-limited thermal tolerance within a coastal population of chinook salmon

Recent local adaptation of sockeye salmon to glacial spawning habitats

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