Female colour and male choice in sockeye salmon: implications for the phenotypic convergence of anadromous and nonanadromous morphs

Foote, Christopher L.; Brown, Gayle S.; Hawryshyn, Craig W.

doi:10.1016/j.anbehav.2003.02.004

Cited by 46 publications

(58 citation statements)

References 73 publications

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“…Red breeding coloration has repeatedly evolved in kokanee, through genetic changes in carotenoid assimilation efficiency (kokanee are three times more efficient at assimilating ingested carotenoids than are sockeye; Craig and Foote 2001). In short, it appears that the environmentally induced change in the phenotype (red to green) that occurs when Pacific salmon invade freshwater lakes has been reversed repeatedly by countergradient selection, perhaps caused by a hue-based mate preference (Foote et al 2004). For another possible example of countergradient variation resulting from geographic variation in carotenoid availability and a coloration-based mate preference, see Hill (1994) and related papers (Hill 1993(Hill , 1995Hill et al 2002, Hill andMcGraw 2004;but see Grether 1995).…”

Section: Countergradient Variation In Other Secondarymentioning

confidence: 99%

Countergradient Variation in the Sexual Coloration of Guppies (Poecilia Reticulata): Drosopterin Synthesis Balances Carotenoid Availability

Grether

Cummings

Hudon

2005

Evol

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Section: Countergradient Variation In Other Secondarymentioning

confidence: 99%

Countergradient Variation in the Sexual Coloration of Guppies (Poecilia Reticulata): Drosopterin Synthesis Balances Carotenoid Availability

Grether

Cummings

Hudon

2005

Evol

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“…In short, it appears that the environmentally induced change in the phenotype (red to green) that occurs when Pacific salmon become established in freshwater lakes has been reversed repeatedly by genetic compensation, perhaps in response to a hue-based mate preference (Foote et al 2004).…”

Section: Examplementioning

confidence: 99%

Environmental Change, Phenotypic Plasticity, and Genetic Compensation

Grether

2005

The American Naturalist

190

230

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“…The most commonly described cases involve diminished variation in body size or development time across altitudinal or latitudinal gradients [3]. Countergradient variation patterns have been documented in numerous species (reviewed in Conover et al [3]), but relatively few studies have confirmed the hypothesized agents of selection [4][5][6]. Countergradient variation is usually hypothesized to arise from selection opposing the influence of the environmental gradient on the development of the trait (i.e.…”

Section: Introductionmentioning

confidence: 99%

Female mate preference explains countergradient variation in the sexual coloration of guppies ( Poecilia reticulata )

et al. 2011

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We tested the hypothesis that mate choice is responsible for countergradient variation in the sexual coloration of Trinidadian guppies (Poecilia reticulata). The nature of the countergradient pattern is that geographical variation in the carotenoid content of the orange spots of males is counterbalanced by genetic variation in drosopterin production, resulting in a relatively uniform pigment ratio. A female hue preference could produce this pattern, because hue is the axis of colour variation most directly affected by the pigment ratio. To test this hypothesis, we crossed two populations differing in drosopterin production and produced an F 2 generation with variable drosopterin levels. When the carotenoid content of the orange spots was held constant, female guppies preferred males with intermediate drosopterin levels. This shows that females do not simply prefer males with greater orange spot pigment content; instead, the ratio of the pigments also affects male attractiveness. To our knowledge, this is the first direct evidence for a hypothesized agent of countergradient sexual selection.

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Female colour and male choice in sockeye salmon: implications for the phenotypic convergence of anadromous and nonanadromous morphs

Cited by 46 publications

References 73 publications

Countergradient Variation in the Sexual Coloration of Guppies (Poecilia Reticulata): Drosopterin Synthesis Balances Carotenoid Availability

Countergradient Variation in the Sexual Coloration of Guppies (Poecilia Reticulata): Drosopterin Synthesis Balances Carotenoid Availability

Environmental Change, Phenotypic Plasticity, and Genetic Compensation

Female mate preference explains countergradient variation in the sexual coloration of guppies ( Poecilia reticulata )

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