Evolution of Late-Life Mortality in Drosophila Melanogaster

Rose, Michael R.; Drapeau, Mark D.; Yazdi, Puya G.; Shah, Kandarp H.; Moise, Diana B.; Thakar, Rena R.; Rauser, Casandra L.; Mueller, Laurence D.

doi:10.1554/0014-3820(2002)056[1982:eollmi]2.0.co;2

Cited by 36 publications

(66 citation statements)

References 53 publications

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“…Upon visual inspection, this is exactly what we observe (Figs 3 and 6). Rose et al. (2002) observed a similar result for late‐life mortality‐rate plateaus.…”

Section: Discussionsupporting

confidence: 69%

“…The difference in age of reproduction between the ACO and CO populations resulted in late‐life mortality‐rate plateaus that started at a significantly greater age in the CO populations, relative to the ACO populations (Rose et al. , 2002), as was predicted by the evolutionary theory.…”

Section: Methodsmentioning

confidence: 68%

“…One evolutionary theory of late‐life mortality is based on the plateau, at or near zero, in the age‐specific force of natural selection after the end of reproduction (Mueller & Rose, 1996; Rose & Mueller, 2000; Charlesworth, 2001; see Pletcher & Curtsinger, 1998 for caveats). This theory has been experimentally corroborated by the result that the onset of mortality‐rate plateaus evolutionarily fluctuates with the age at which reproduction ends (Rose et al. , 2002).…”

Section: Introductionmentioning

confidence: 76%

“…The ability of evolutionary theories based on the force of natural selection to explain the existence and experimental manipulation of both mortality‐rate (Rose et al. , 2002) and fecundity plateaus adds to their plausibility as causal explanations of these phenomena.…”

Section: Discussionmentioning

confidence: 99%

“…In this study we subject late‐reproducing populations to an evolutionary reversion to earlier ages of reproduction (cf. Rose et al. , 2002, 2004) and statistically test whether these newly derived early reproducing populations have an earlier plateau onset compared to the late‐reproducing populations from which they were derived.…”

Section: Introductionmentioning

confidence: 99%

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Evolution of late-life fecundity in Drosophila melanogaster

Rauser

Tierney

Gunion

et al. 2006

Journal of Evolutionary Biology

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Late‐life fecundity has been shown to plateau at late ages in Drosophila analogously to late‐life mortality rates. In this study, we test an evolutionary theory of late life based on the declining force of natural selection that can explain the occurrence of these late‐life plateaus in Drosophila. We also examine the viability of eggs laid by late‐age females and test a population genetic mechanism that may be involved in the evolution of late‐life fecundity: antagonistic pleiotropy. Together these experiments demonstrate that (i) fecundity plateaus at late ages, (ii) plateaus evolve according to the age at which the force of natural selection acting on fecundity reaches zero, (iii) eggs laid by females in late life are viable and (iv) antagonistic pleiotropy is involved in the evolution of late‐life fecundity. This study further supports the evolutionary theory of late life based on the age‐specific force of natural selection.

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“…Upon visual inspection, this is exactly what we observe (Figs 3 and 6). Rose et al. (2002) observed a similar result for late‐life mortality‐rate plateaus.…”

Section: Discussionsupporting

confidence: 69%

Section: Methodsmentioning

confidence: 68%

Section: Introductionmentioning

confidence: 76%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Evolution of late-life fecundity in Drosophila melanogaster

Rauser

Tierney

Gunion

et al. 2006

Journal of Evolutionary Biology

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A reassessment of sexual dimorphism in human senescence: Theory, evidence, and causation

2006

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Age-specific mortality rates of men are higher than those of women, and men have shorter average life spans than women. This has been interpreted as evidence of sexual dimorphism in rates of senescence. However, because mortality can be caused by numerous factors in addition to senescence, higher mortality rates do not necessarily indicate more rapid senescence. In this paper, we (1) emphasize the necessity of decoupling mortality and senescence when considering sexual dimorphism in senescence, (2) present a theoretical framework for the hypothesis that selection affects senescence in human males and females differently due to different life history characteristics, (3) consider phenotypic evidence from the literature that human males show a later onset of senescence than human females, despite exhibiting higher mortality rates, and (4) discuss the potential roles of mutation accumulation and antagonistic pleiotropy in the evolution of sexual dimorphism in senescence.

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The human post‐fertile lifespan in comparative evolutionary context

Levitis

Bürger²,

Lackey³

2013

Evolutionary Anthropology

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There persist two widely held but mutually inconsistent views on the evolution of post-fertile lifespan of human females. The first, prevalent within anthropology, sees post-fertile lifespan (PFLS) in the light of adaptive processes, focusing on the social and economic habits of humans that selected for a lengthy PFLS. This view rests on the assumption that human PFLS is distinct from that of other species, and focuses on quantifying the selective causes and consequences of that difference. The second view, prevalent within gerontology and comparative biology, emphasizes that PFLS is a phylogenetically widespread trait or that human PFLS is predictable based on life-history allometries. In this view, human PFLS is part of a broad cross-species pattern and its genesis cannot, therefore, rely on human-specific traits. Those who advocate the second view have questioned the "special pleading" for human specific explanations of PFLS, and have argued that human PFLS is quantitatively greater but not qualitatively different than PFLS in many other animals. Papers asking whether human PFLS is explained by the importance of mothers more than grandmothers, whether paternal or maternal grandparents have more of an effect on child survival, or who is providing the excess calories are associated with the first view that assumes the need to explain the existence of human PFLS on the basis of a uniquely human socioecology. Anthropologists largely see human PFLS as derived, while comparative gerontologists point to evidence that it is one instance of a ubiquitous cross-species pattern. The two groups generally occupy non-overlapping research circles, in terms of conferences and journals, and therefore interact little enough to largely avoid the need to reconcile their views, allowing the persistence of misconceptions in each field. Our goal is to identify and address the most important of these misconceptions and thereby make clear that both of these seemingly incongruent views contain valid points. We argue that two distinct but related traits have been lumped together under the same concept of "post-reproductive lifespan," one (post-fertile viability) that is tremendously widespread and another (a post-fertile life stage) that is derived to hominins, and that the differences and connections between these two traits are necessary for understanding human life-history evolution.

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Evolution of Late-Life Mortality in Drosophila Melanogaster

Cited by 36 publications

References 53 publications

Evolution of late-life fecundity in Drosophila melanogaster

Evolution of late-life fecundity in Drosophila melanogaster

A reassessment of sexual dimorphism in human senescence: Theory, evidence, and causation

The human post‐fertile lifespan in comparative evolutionary context

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