Three Approaches to Trade-Offs in Life-History Evolution

Rose, Michael R.; Hutchinson, E. W.

doi:10.1007/978-3-642-72770-2_6

Cited by 47 publications

(33 citation statements)

References 38 publications

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“…This, of course, was the primary message of Curtsinger et al (1994) and was also stated by Rose et al (1987). Two situations in which it appears very unlikely that antagonistic pleiotropy would maintain a polymorphism are when there is selection limited to only one sex and when there is a high amount of inbreeding.…”

Section: Discussionmentioning

confidence: 89%

“…In this manner, it could be determined whether these fitnesses would actually predict a balanced polymorphism and whether it is the result of antagonistic pleiotropy. Rose et al (1987) and Curtsinger et al (1994) suggest that antagonistic pleiotropy should generate substantial dominance variance. However, as they state, there is little empirical evidence for high levels of dominance variance, consistent with low amounts of antagonistic pleiotropy.…”

Section: Discussionmentioning

confidence: 99%

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Antagonistic pleiotropy and genetic polymorphism: a perspective

Hedrick

1999

Heredity

103

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Antagonistic pleiotropy, in which reproduction and viability counter each other, appears to be widely thought of great significance in life history theory and the evolution of senescence. However, the conditions for maintenance of polymorphism by antagonistic pleiotropy are quite restrictive. This is particularly so when there is no reversal of dominance for different traits, sex-limited expression of fitness components, finite population size or inbreeding. Furthermore, when antagonistic pleiotropy is compared with other mechanisms of balancing selection, it appears to have more restrictive conditions for the maintenance of polymorphism. Although these theoretical findings do not preclude the presence of loci that exhibit antagonistic pleiotropy, because it appears so unlikely that antagonistic pleiotropy is an important factor maintaining polymorphism, empirical evidence suggesting antagonistic pleiotropy as the factor maintaining polymorphism should be carefully scrutinized.

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Section: Discussionmentioning

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Antagonistic pleiotropy and genetic polymorphism: a perspective

Hedrick

1999

Heredity

103

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“…In recent years, much empirical work on life-history evolution has focused upon the elucidation of tradeoffs between components of fitness, especially those generated by antagonistic pleiotropy, and the bulk of this work has been done on Drosophila species (Rose et al, 1987(Rose et al, , 1996Joshi, 1997). There is now clear evidence for multiple trade-offs between components of adult fitness in Drosophila, for example negative effects of early reproduction upon later reproduction and adult survival\longevity (Rose, 1984 ;Service et al, 1985Service et al, , 1988Roper et al, 1993 ;Zwaan, 1993 ;Leroi et al, 1994 ;, as well as between larval components of fitness, such as rate of food acquisition and the efficiency of its utilization (Mueller, 1990 ;Santos et al, 1997), or the rate of food acquisition and survival to eclosion, especially in the presence of nitrogenous metabolic wastes (Borash et al, 1998).…”

Section: Introductionmentioning

confidence: 99%

Evolution of reduced pre-adult viability and larval growth rate in laboratory populations of Drosophila melanogaster selected for shorter development time

et al. 2000

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Four large (n > 1000) populations of Drosophila melanogaster, derived from control populations maintained on a 3 week discrete generation cycle, were subjected to selection for fast development and early reproduction. Egg to eclosion survivorship and development time and dry weight at eclosion were monitored every 10 generations. Over 70 generations of selection, development time in the selected populations decreased by approximately 36 h relative to controls, a 20% decline. The difference in male and female development time was also reduced in the selected populations. Flies from the selected populations were increasingly lighter at eclosion than controls, with the reduction in dry weight at eclosion over 70 generations of selection being approximately 45% in males and 39% in females. Larval growth rate (dry weight at eclosion/development time) was also reduced in the selected lines over 70 generations, relative to controls, by approximately 32% in males and 24% in females. However, part of this relative reduction was due to an increase in growth rate of the controls populations, presumably an expression of adaptation to conditions in our laboratory. After 50 generations of selection had elapsed, a considerable and increasing pre-adult viability cost to faster development became apparent, with viability in the selected populations being about 22% less than that of controls at generation 70 of selection.

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“…see Rose et al, 1987;1986;Mueller, 1995Mueller, , 1997Joshi, 1997). In the present study, we examined two components of pre-adult fitness in four laboratory populations of Drosophila melanogaster that have been reared at constant temperature (25 ± 1 o C) and humidity in LL for over 600 generations and have, therefore, not been exposed to any environmental time cues.…”

Section: Introductionmentioning

confidence: 99%

Effect of Different Light Regimes on Pre-Adult Fitness in Drosophila melanogaster Populations Reared in Constant Light for over Six Hundred Generations

Sheeba¹,

Sharma²,

Chandrashekaran³

et al. 1999

Biological Rhythm Research

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Egg to eclosion development time and survivorship were assayed on four laboratory populations of Drosophila melanogaster that had been reared for over 600 generations in continuous light (LL) and constant temperature. The assays were performed in three environments: continuous light (LL), periodically varying light/dark cycles (LD 12:12 hr), and continuous darkness (DD). Development time in LL was significantly less than that in LD, which, in turn, was significantly less than that in DD, whereas survivorship did not differ significantly among the three treatments. The results indicate that individuals from Drosophila populations routinely maintained in LL do not suffer any deleterious effects of LL treatment on pre-adult fitness. Other studies on these populations have shown that freerunning period (τ) of the eclosion rhythm in DD is greater than that in LD. Our results are, thus, also consistent with the notion that development time may be a function of the free-running period.

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Three Approaches to Trade-Offs in Life-History Evolution

Cited by 47 publications

References 38 publications

Antagonistic pleiotropy and genetic polymorphism: a perspective

Antagonistic pleiotropy and genetic polymorphism: a perspective

Evolution of reduced pre-adult viability and larval growth rate in laboratory populations of Drosophila melanogaster selected for shorter development time

Effect of Different Light Regimes on Pre-Adult Fitness in Drosophila melanogaster Populations Reared in Constant Light for over Six Hundred Generations

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