The interaction of stressors in the induction of increased levels of fluctuating asymmetry in the laboratory rat

Sciulli, Paul W.; Doyle, William J.; Kelley, Catherine L.; Siegel, P. B.; Siegel, Michael I.

doi:10.1002/ajpa.1330500218

Cited by 94 publications

(65 citation statements)

References 14 publications

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“…Given that such outbreeding populations tend to contain high levels of deleterious recessive alleles, such increases in homozygosity will be accompanied by inbreeding depression and the associated developmental stress. This hypothesis is somewhat more nebulous and less mechanistic than that invoking relationships between biochemical efficiency and specific-locus heterozygosity but is in keeping with the fact that asymmetry is also influenced by a disparate array of environmental stresses Sciulli et al 1979).…”

Section: Discussionmentioning

confidence: 90%

Fluctuating Asymmetry: A Technique for Measuring Developmental Stress Caused by Inbreeding

Clarke¹,

Brand²,

Whitten³

1986

Aust. Jnl. Of Bio. Sci.

145

121

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Fluctuating asymmetry has sometimes been employed to indicate disruption of developmental homeostasis. Such disruption is thought to be a result of increased developmental stress. In this study we examine the relationship between fluctuating asymmetry and inbreeding level in two differing breeding systems: the marine harpacticoid copepod Tisbe holothuriae, a typically outbreeding diploid, and the common honeybee Apis melli/era, which is haplo-diploid. Inbreeding has previously been shown to constitute a developmental stress in populations of T. holothuriae, but the same is yet to be conclusively shown in A. melli/era.T. holothuriae showed an increase in the level of fluctuating asymmetry with increased levels of inbreeding. No difference in the level of asymmetry was observed for A. melli/era when outbred lines were compared with inbred lines. It is concluded that fluctuating asymmetry provides a useful technique for the measurement of developmental stress caused by inbreeding.

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Section: Discussionmentioning

confidence: 90%

Fluctuating Asymmetry: A Technique for Measuring Developmental Stress Caused by Inbreeding

Clarke¹,

Brand²,

Whitten³

1986

Aust. Jnl. Of Bio. Sci.

145

121

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“…Nutritional stress resulting in elevated FA has been observed in a diverse range of taxa including insects, birds, and mammals (Sciulli et al 1979;Swaddle and Witter 1994;Møller 1995;Imasheva et al 1999). The processes leading to nutritional stress may be multiple and include competitive interactions, predation risk, and resource availability.…”

Section: Discussionmentioning

confidence: 99%

Tarsal Asymmetry, Nutritional Condition, and Survival in Water Boatmen (Callicorixa Vulnerata)

Nosil

Reimchen

2007

Evolution

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Abstract. Fluctuating asymmetry (FA) has been used as a measure of developmental stability and may indicate individual phenotypic or genotypic quality. Using water boatmen (Callicorixa vulnerata) from a natural population, we examined the relationship between tarsal FA (tarsal spine number, tarsal length) and indices of body condition in two habitats. We used body weight and residual body weight (controlling for body length) as indices of condition because experimental food deprivation in water boatmen led to a reduction in each. We detected a negative relationship between FA and both indices of condition in two ecologically distinct pond habitats. We predicted this association was due to a negative relationship between FA and competitive feeding ability. Consequently, we examined associations between survival time and tarsal FA in C. vulnerata under resource-limited laboratory conditions. Univariate analyses revealed a negative correlation between survival and tarsal FA in each trait. Inclusion of survival time, body length, gender, tarsal spine number, tarsal length, and measures of FA into multivariate analyses revealed a negative correlation between survival and FA. Individuals with the greatest survival had higher nutritional condition than individuals that succumbed early in the experiment. Asymmetric individuals may suffer a foraging handicap as a result of the use of tarsi in feeding or they may be of poor genetic quality. Our results suggest elevated FA may limit resource acquisition and are consistent with the use of FA as a measure of fitness.

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“…A number of prenatal environmental stressors during pregnancy have been found to create dental asymmetry in the o¡spring of rats (e.g. Sciulli et al 1979;Mooney et al 1985).…”

Section: Introductionmentioning

confidence: 99%

Birth order and fluctuating asymmetry: a first look

Lalumière

Harris

Rice

1999

Proc. R. Soc. Lond. B

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We investigated the hypothesis that maternal immunoreactivity to male-speci¢c features of the foetus can increase developmental instability. We predicted that the participants' number of older brothers would be positively related to the £uctuating asymmetry of ten bilateral morphological traits. The participants were 40 adult male psychiatric patients and 31 adult male hospital employees. Consistent with the hypothesis, the participants' number of older brothersöbut not number of older sisters, younger brothers or younger sistersöwas positively associated with £uctuating asymmetry. The patients had signi¢cantly larger £uctuating asymmetry scores and tended to have more older brothers than the employees, but the positive relationship between the number of older brothers and £uctuating asymmetry was observed in both groups.

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The interaction of stressors in the induction of increased levels of fluctuating asymmetry in the laboratory rat

Cited by 94 publications

References 14 publications

Fluctuating Asymmetry: A Technique for Measuring Developmental Stress Caused by Inbreeding

Fluctuating Asymmetry: A Technique for Measuring Developmental Stress Caused by Inbreeding

Tarsal Asymmetry, Nutritional Condition, and Survival in Water Boatmen (Callicorixa Vulnerata)

Birth order and fluctuating asymmetry: a first look

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