Chemosensory recognition of siblings in juvenile coho salmon (Oncorhynchus kisutch)

Quinn, Thomas P.; Busack, Craig A.

doi:10.1016/s0003-3472(85)80119-6

Cited by 143 publications

(99 citation statements)

References 28 publications

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“…The olfactory systems of many ¢sh allow the detection of kin through cues present in secreted bile acids, amino acids and urine (e.g. McKaye & Barlow 1976;Loiselle 1983;Quinn & Busack 1985;Brown & Brown 1996). Thus, a parental male bluegill sun¢sh may be able to assess his paternity from the odour in the secretions of the newly hatched fry (e.g.…”

Section: Discussionmentioning

confidence: 99%

Dynamic adjustment of parental care in response to perceived paternity

Neff

Gross

2001

Proc. R. Soc. Lond. B

101

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Theories of parental care evolution predict that genetic relatedness will be an important variable in the amount of care a parent provides. However, current inferences of relatedness-based parental investment from studies in humans and birds remain challenged. No study has yet demonstrated parental care adjustment in a manner uncomplicated by life-history correlates or experimental design. We now present a unique test that controls for individual life histories and demonstrates paternity-related dynamic adjustments in parental care. Brood-rearing male bluegill sun¢sh (Lepomis macrochirus) that are cuckolded to a varying degree will either increase or decrease their parental investment in response to changing information on paternity during brood development. Speci¢cally, as parental males detect paternity lost to cuckolders and, hence, a reduction in the value of their brood, they adaptively lower their level of parental care. Conversely, if they detect that their paternity is higher than previously assessed, they adaptively raise their level of parental care. This dynamic adjustment during brood rearing indicates the importance of genetic relatedness in parental investment decisions and provides needed empirical support for theoretical predictions.

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Section: Discussionmentioning

confidence: 99%

Dynamic adjustment of parental care in response to perceived paternity

Neff

Gross

2001

Proc. R. Soc. Lond. B

101

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“…15). For example, both Atlantic and coho salmon can discriminate between siblings and nonsiblings (21,22). Perhaps the acute olfactory system of these species (as evidenced by their precise natal homing) also allows kin discrimination on the basis of subtle chemosensory cues.…”

Section: Discussionmentioning

confidence: 99%

Genetic documentation of filial cannibalism in nature

DeWoody

Fletcher

Wilkins

et al. 2001

Proc. Natl. Acad. Sci. U.S.A.

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Cannibalism is widespread in natural populations of fishes, where the stomachs of adults frequently contain conspecific juveniles. Furthermore, field observations suggest that guardian males routinely eat offspring from their own nests. However, recent genetic paternity analyses have shown that fish nests often contain embryos not sired by the nest-tending male (because of cuckoldry events, egg thievery, or nest piracy). Such findings, coupled with the fact that several fish species have known capabilities for distinguishing kin from nonkin, raise the possibility that cannibalism by guardian males is directed primarily or exclusively toward unrelated embryos in their nests. Here, we test this hypothesis by collecting freshly cannibalized embryos from the stomachs of several nest-tending darter and sunfish males in nature and determining their genetic parentage by using polymorphic microsatellite markers. Our molecular results clearly indicate that guardian males do indeed consume their own genetic offspring, even when unrelated (foster) embryos are present within the nest. These data provide genetic documentation of filial cannibalism in nature. Furthermore, they suggest that the phenomenon may result, at least in part, from an inability of guardians to differentiate between kin and nonkin within their own nests.

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“…in coho salmon (Oncorhynchus kisutch : Quinn & Busack 1985), Arctic charr (Salvelinus alpinus L. : Olsén 1989;Winberg & Olsen 1992) and rainbow trout (Oncorhynchus mykiss: Brown et al 1993) and kin recognition by familiarity, e.g. in guppies (Poecilia reticulata: Griffiths & Magurran 1999), bluegill sunfish (Lepomis macrochirus : Hain & Neff 2006) and sticklebacks (Gasterosteus aculeatus: Frommen et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Kin recognition in zebrafish: a 24-hour window for olfactory imprinting

et al. 2008

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Distinguishing kin from non-kin profoundly impacts the evolution of social behaviour. Individuals able to assess the genetic relatedness of conspecifics can preferentially allocate resources towards related individuals and avoid inbreeding. We have addressed the question of how animals acquire the ability to recognize kin by studying the development of olfactory kin preference in zebrafish (Danio rerio). Previously, we showed that zebrafish use an olfactory template to recognize even unfamiliar kin through phenotype matching. Here, we show for the first time that this phenotype matching is based on a learned olfactory imprinting process in which exposure to kin individuals on day 6 post fertilization (pf ) is necessary and sufficient for imprinting. Larvae that were exposed to kin before or after but not on day 6 pf did not recognize kin. Larvae isolated from all contact with conspecifics did not imprint on their own chemical cues; therefore, we see no evidence for kin recognition through self-matching in this species. Surprisingly, exposure to non-kin odour during the sensitive phase of development did not result in imprinting on the odour cues of unrelated individuals, suggesting a genetic predisposition to kin odour. Urine-born peptides expressed by genes of the immune system (MHC) are important messengers carrying information about 'self' and 'other'. We suggest that phenotype matching is acquired through a time-sensitive learning process that, in zebrafish, includes a genetic predisposition potentially involving MHC genes expressed in the olfactory receptor neurons.

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Chemosensory recognition of siblings in juvenile coho salmon (Oncorhynchus kisutch)

Cited by 143 publications

References 28 publications

Dynamic adjustment of parental care in response to perceived paternity

Dynamic adjustment of parental care in response to perceived paternity

Genetic documentation of filial cannibalism in nature

Kin recognition in zebrafish: a 24-hour window for olfactory imprinting

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