A note on barometric pressure and behavior inDrosophila pseudoobscura

Ankney, Paul F.

doi:10.1007/bf01065549

Cited by 27 publications

(15 citation statements)

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“…For example, changes in atmospheric pressure may directly shift intracellular pressure in feeding larvae of 4-to 5-day-old D. melanogaster. Such shifts may cause responses from all cellular structures, including genetic ones (Ankney 1984;Kloek 1978). Alterations in the latter may be phenotypically expressed at the population level as an altered LS (Ashburner 1989).…”

Section: Discussionmentioning

confidence: 99%

Correlations of life-span variation parameters in 128 successive generations of Drosophila melanogaster with changes in atmospheric pressure and geomagnetic activity

2004

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Correlations between the parameters of life-span (LS) distribution of Drosophila melanogaster, including mean LS (MLS) and the time of 10 and 90% population mortality, and some geophysical parameters that are usually beyond the control of researchers dealing with laboratory cultures, including atmospheric pressure, solar activity indices (Wolf's sunspot numbers and 2,800-MHz radio flux), and geomagnetic activity (planetary index, K(p)), were studied. Geophysical data were obtained from free-access official web sites of the National Oceanic & Atmospheric Administration of the US Department of Commerce and the Institute of Terrestrial Magnetism and Radiowave Propagation of the Russian Academy of Sciences. The geophysical parameters were calculated only for the period corresponding to 10 days of preimaginal development of the flies from egg to imago. Canonical correlation analysis, calculation of the non-parametric Spearman rank-order correlation coefficients, and graphical data analysis were used. Highly significant correlations between parameters of LS distribution in males and females and environmental factors, such as the atmospheric pressure on the 4th and 5th day of development and geomagnetic activity indices (K(p)) on the 6th and 10th day of development were found, with correlation coefficients varying from 0.31 to 0.37 (P<0.02). Assuming a causal relationship between geophysical factors and LS, it may be hypothesized that energetically weak environmental factors determine the formation of LS oscillatory dynamics in laboratory populations. The possible mechanisms underlying the contribution of these environmental factors to the LS variation in successive generations are discussed.

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Section: Discussionmentioning

confidence: 99%

Correlations of life-span variation parameters in 128 successive generations of Drosophila melanogaster with changes in atmospheric pressure and geomagnetic activity

2004

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“…Moya et al [38] showed an increase in frequency-dependent viability with duration of competition and frequency-dependent migration of larvae of different genotypes. Genetic control of the level of medium conditioning and viability on that medium was also demonstrated [27,39].…”

Section: Discussionmentioning

confidence: 95%

“…As mentioned above, all experiments were conducted under standard conditions, at constant temperature and humidity, and in the same illumination regime; the number, genotype, age, and oviposition time of the females from the parental generation were identical. Hence, these differences may be accounted for by the differences in fertility of l167/+ males from the parental generation and viability of their progeny, as well as changes in female fecundity caused by uncontrolled fluctuations of the environmental conditions (for example, atmospheric pressure, which can affect female fertility [27]). We cannot substantiate a leading role of any of these factors for the following reasons.…”

Section: Discussionmentioning

confidence: 99%

The effect of population density on the elimination dynamics of a recessive lethal mutation l(2)M167 DTS from experimental populations of Drosophila melanogaster

2005

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Dynamics of the elimination of the temperature-sensitive lethal mutation l(2)M167 DTS from experimental populations of Drosophila melanogaster under permissive conditions (25 ° C) was studied. We have shown a rapid elimination of the mutation from the populations, selection for fitness of heterozygous individuals, association of the selection with high larval density and with the direction of the cross that had produced the founder males of the l(2)M167 DTS /+ population, and the effect of relative competitive ability of l(2)M167 DTS /+ males on the efficiency of the mutation introduction. Modification systems were shown be involved in fitness selection under conditions of high larval density. GENERAL GENETICS

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“…When we began work on this topic, we rationalized that the magnitude of tolerance would show day-to-day variations caused by events that we could not control or could not imagine. For example, Drosophila show changes in behavior in response to barometric pressure (a factor that also affects solvent vaporization) (Ankney, 1984). Variability of this kind can be avoided if we treat tolerance as a binary phenomenon that either occurs or does not.…”

Section: Behavioral Analysis Of Rapid Drug Tolerance In Drosophilamentioning

confidence: 99%

Homeostatic Cont of Neural Activity: A Drosophila Model for Drug Tolerance and Dependence

Ghezzi

Atkinson

2011

International Review of Neurobiology

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Drug addiction is a complex condition of compulsive drug use that results in devastating physical and social consequences. Drosophila melanogaster has recently emerged as a valuable genetic model for investigating the mechanisms of addiction. Drug tolerance is a measurable endophenotype of addiction that can be easily generated and detected in animal models. The counter-adaptive theory for drug dependence postulates that the homeostatic adaptations that produce drug tolerance become counter-adaptive after drug clearance, resulting in symptoms of dependence. In flies, a single sedation with ethanol or with an organic solvent anesthetic (benzyl alcohol) induces functional tolerance, an adaptation of the nervous system that reduces the effect of these neural depressants. Here we review the role of the BK channel gene (slo) and genes that encode other synaptic proteins in the process of producing functional tolerance. These proteins are predicted to be part of an orchestrated response that involves specific interactions across a highly complex synaptic protein network. The response of the slo gene to drug exposure and the consequence of induced slo expression fit nicely the tenets of the counter-adaptive theory for drug tolerance and dependence. Induction of slo expression represents an adaptive process that generates tolerance because it enhances neuronal excitability, which counters the sedative effects of the drugs. After drug clearance, however, the increase in slo expression leads to an allostatic withdrawal state that is characterized by an increase in the susceptibility for seizure. Together, these results demonstrate a common origin for development of drug tolerance and withdrawal hyperexcitability in Drosophila.

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A note on barometric pressure and behavior inDrosophila pseudoobscura

Cited by 27 publications

References 1 publication

Correlations of life-span variation parameters in 128 successive generations of Drosophila melanogaster with changes in atmospheric pressure and geomagnetic activity

Correlations of life-span variation parameters in 128 successive generations of Drosophila melanogaster with changes in atmospheric pressure and geomagnetic activity

The effect of population density on the elimination dynamics of a recessive lethal mutation l(2)M167 DTS from experimental populations of Drosophila melanogaster

Homeostatic Cont of Neural Activity: A Drosophila Model for Drug Tolerance and Dependence

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