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Journal ; Online: Evolution

Chapman, Tracey

international journal of organic evolution

2022

Abstract: Evolution', the flagship journal of the Society for the Study of Evolution, publishes articles in evolutionary biology focused on evolutionary phenomena and processes at all levels of biological organization. ...

Institution	Society for the Study of Evolution
Author's details	editor-in-chief, Tracey Chapman
Abstract	'Evolution', the flagship journal of the Society for the Study of Evolution, publishes articles in evolutionary biology focused on evolutionary phenomena and processes at all levels of biological organization.
Keywords	Evolution (Biology)
Subject code	576.805
Language	English
Dates of publication	Vol. 1, no. 1-2 (Mar.-June 1947)-
Size	1 online resource
Publisher	Oxford University Press
Publishing place	Oxford
Document type	Journal ; Online
Note	"Society for the Study of Evolution"--Home page.
Database	ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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Article ; Online: Sexual Conflict: Mechanisms and Emerging Themes in Resistance Biology.

Chapman, Tracey

The American naturalist

2018 Volume 192, Issue 2, Page(s) 217–229

Abstract: Sexual conflict is acknowledged as pervasive, with the potential to generate and maintain genetic variation. Mechanistic studies of conflict have been important in providing direct evidence for the existence of sexual conflict. They have also led to the ... ...

Abstract	Sexual conflict is acknowledged as pervasive, with the potential to generate and maintain genetic variation. Mechanistic studies of conflict have been important in providing direct evidence for the existence of sexual conflict. They have also led to the growing realization that there is a striking phenotypic diversity of adaptations whose evolution can be shaped by sexually antagonistic selection. The mechanisms involved range from the use of genital spines, claspers, songs, and smells to ejaculate molecules. In one well-studied example, sexual conflict can occur over the sexually antagonistic effects of seminal fluid proteins in Drosophila melanogaster. However, an important puzzle remains, namely, why seminal fluid proteins are so numerous and complex, hence whether all or some are involved in mediating sexual conflict. I hypothesize that this rich diversity and the complexity of traits subject to sexually antagonistic selection in general may arise, at least in part, due to the deployment of sexually antagonistic adaptations in males in a way that lessens the probability of broadscale, strong resistance evolution in females. In elaborating this hypothesis, I explore how research into the evolution of resistance to insecticides, antimicrobials, and vaccines might be used to provide insights into the evolution of female resistance to the effects of sexually antagonistic manipulative traits of males. In this manner, the manipulative traits of males can be resistance-proofed.
MeSH term(s)	Animals ; Biological Evolution ; Drosophila melanogaster/physiology ; Drug Resistance/genetics ; Female ; Insect Proteins/physiology ; Male ; Selection, Genetic ; Seminal Plasma Proteins/physiology ; Sexual Behavior, Animal
Chemical Substances	Insect Proteins ; Seminal Plasma Proteins
Language	English
Publishing date	2018-05-24
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	207092-3
ISSN	1537-5323 ; 0003-0147
ISSN (online)	1537-5323
ISSN	0003-0147
DOI	10.1086/698169
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Article ; Online: Matthew J. G. Gage (1967-2022).

Chapman, Tracey / Stockley, Paula

Nature ecology & evolution

2022 Volume 6, Issue 6, Page(s) 660–661

Language	English
Publishing date	2022-05-06
Publishing country	England
Document type	Editorial
ISSN	2397-334X
ISSN (online)	2397-334X
DOI	10.1038/s41559-022-01762-7
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Article: Manipulating Insect Sex Determination Pathways for Genetic Pest Management: Opportunities and Challenges.

Siddall, Alex / Harvey-Samuel, Tim / Chapman, Tracey / Leftwich, Philip T

Frontiers in bioengineering and biotechnology

2022 Volume 10, Page(s) 867851

Abstract: Sex determination pathways in insects are generally characterised by an upstream primary signal, which is highly variable across species, and that regulates the splicing of a suite of downstream but highly-conserved genes ( ...

Abstract	Sex determination pathways in insects are generally characterised by an upstream primary signal, which is highly variable across species, and that regulates the splicing of a suite of downstream but highly-conserved genes (
Language	English
Publishing date	2022-06-28
Publishing country	Switzerland
Document type	Journal Article ; Review
ZDB-ID	2719493-0
ISSN	2296-4185
ISSN	2296-4185
DOI	10.3389/fbioe.2022.867851
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Article ; Online: Plastic responses of males and females interact to determine mating behavior.

Fowler, Emily K / Leigh, Stewart / Bretman, Amanda / Chapman, Tracey

Evolution; international journal of organic evolution

2022 Volume 76, Issue 9, Page(s) 2116–2129

Abstract: Individuals can respond plastically to variation in their social environment. However, each sex may respond to different cues and contrasting aspects of competition. Theory suggests that the plastic phenotype expressed by one sex can influence ... ...

Abstract	Individuals can respond plastically to variation in their social environment. However, each sex may respond to different cues and contrasting aspects of competition. Theory suggests that the plastic phenotype expressed by one sex can influence evolutionary dynamics in the other, and that plasticity simultaneously expressed by both sexes can exert sex-specific effects on fitness. However, data are needed to test this theory base. Here, we examined whether the simultaneous expression of adaptive plasticity by both sexes of Drosophila melanogaster fruit flies in response to their respective social environments interacts to determine the value of key reproductive traits (mating latency, duration, and fecundity). To vary social environments, males were kept alone, or with same sex rivals, and females were kept alone, in same-sex, or mixed-sex groups. Matings were then conducted between individuals from all of these five social treatments in all combinations, and the resulting reproductive traits measured in both "choice" and "no-choice" assays. Mating latency was determined by an interaction between the plastic responses of both sexes to their social environments. Interestingly, the mating latency response occurred in opposing directions in the different assays. In females exposed to same-sex social treatments, mating latency was more rapid with rival treatment males in the choice assays, but slower with those same males in no-choice assays. In contrast, mating duration was determined purely by responses of males to their social environments, and fecundity purely by responses of females. Collectively, the results show that plastic responses represent an important and novel facet of sexual interactions.
MeSH term(s)	Animals ; Biological Evolution ; Drosophila ; Drosophila melanogaster/genetics ; Female ; Male ; Reproduction/physiology ; Sexual Behavior, Animal/physiology
Language	English
Publishing date	2022-08-12
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2036375-8
ISSN	1558-5646 ; 0014-3820
ISSN (online)	1558-5646
ISSN	0014-3820
DOI	10.1111/evo.14568
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Article: Reproductive interference and Satyrisation: mechanisms, outcomes and potential use for insect control.

Mitchell, Christina / Leigh, Stewart / Alphey, Luke / Haerty, Wilfried / Chapman, Tracey

Journal of pest science

2022 Volume 95, Issue 3, Page(s) 1023–1036

Abstract: Reproductive Interference occurs when interactions between individuals from different species disrupt reproductive processes, resulting in a fitness cost to one or both parties involved. It is typically observed between individuals of closely related ... ...

Abstract	Reproductive Interference occurs when interactions between individuals from different species disrupt reproductive processes, resulting in a fitness cost to one or both parties involved. It is typically observed between individuals of closely related species, often upon secondary contact. In both vertebrates and invertebrates, Reproductive Interference is frequently referred to as 'Satyrisation'. It can manifest in various ways, ranging from blocking or reducing the efficacy of mating signals, through to negative effects of heterospecific copulations and the production of sterile or infertile hybrid offspring. The negative fitness effects of Satyrisation in reciprocal matings between species are often asymmetric and it is this aspect, which is most relevant to, and can offer utility in, pest management. In this review, we focus on Satyrisation and outline the mechanisms through which it can operate. We illustrate this by using test cases, and we consider the underlying reasons why the reproductive interactions that comprise Satyrisation occur. We synthesise the key factors affecting the expression of Satyrisation and explore how they have potential utility in developing new routes for the management and control of harmful insects. We consider how Satyrisation might interact with other control mechanisms, and conclude by outlining a framework for its use in control, highlighting some of the important next steps
Language	English
Publishing date	2022-02-08
Publishing country	Germany
Document type	Journal Article ; Review
ZDB-ID	2141662-X
ISSN	1612-4766 ; 1439-0280 ; 1612-4758
ISSN (online)	1612-4766 ; 1439-0280
ISSN	1612-4758
DOI	10.1007/s10340-022-01476-6
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Article ; Online: Costs of reproduction are present but latent in eusocial bumblebee queens.

Collins, David H / Prince, David C / Donelan, Jenny L / Chapman, Tracey / Bourke, Andrew F G

BMC biology

2023 Volume 21, Issue 1, Page(s) 153

Abstract: Background: The standard evolutionary theory of ageing proposes that ageing occurs because of a trade-off between reproduction and longevity. Eusocial insect queens exhibit positive fecundity-longevity associations and so have been suggested to be ... ...

Abstract	Background: The standard evolutionary theory of ageing proposes that ageing occurs because of a trade-off between reproduction and longevity. Eusocial insect queens exhibit positive fecundity-longevity associations and so have been suggested to be counter-examples through not expressing costs of reproduction and through remodelling conserved genetic and endocrine networks regulating ageing and reproduction. If so, eusocial evolution from solitary ancestors with negative fecundity-longevity associations must have involved a stage at which costs of reproduction were suppressed and fecundity and longevity became positively associated. Using the bumblebee (Bombus terrestris), we experimentally tested whether queens in annual eusocial insects at an intermediate level of eusocial complexity experience costs of reproduction, and, using mRNA-seq, the extent to which they exhibit a remodelling of relevant genetic and endocrine networks. Specifically, we tested whether costs of reproduction are present but latent, or whether a remodelling of relevant genetic and endocrine networks has already occurred allowing queens to reproduce without costs. Results: We experimentally increased queens' costs of reproduction by removing their eggs, which caused queens to increase their egg-laying rate. Treatment queens had significantly reduced longevity relative to control queens whose egg-laying rate was not increased. Reduced longevity in treatment queens was not caused by increased worker-to-queen aggression or by increased overall activity in queens. In addition, treatment and control queens differed in age-related gene expression based on mRNA-seq in both their overall expression profiles and the expression of ageing-related genes. Remarkably, these differences appeared to occur principally with respect to relative age, not chronological age. Conclusions: This study represents the first simultaneously phenotypic and transcriptomic experimental test for a longevity cost of reproduction in eusocial insect queens. The results support the occurrence of costs of reproduction in annual eusocial insects of intermediate social complexity and suggest that reproductive costs are present but latent in queens of such species, i.e. that these queens exhibit condition-dependent positive fecundity-longevity associations. They also raise the possibility that a partial remodelling of genetic and endocrine networks underpinning ageing may have occurred in intermediately eusocial species such that, in unmanipulated conditions, age-related gene expression depends more on chronological than relative age.
MeSH term(s)	Bees/genetics ; Animals ; Reproduction ; Fertility ; Aging ; Longevity ; RNA, Messenger
Chemical Substances	RNA, Messenger
Language	English
Publishing date	2023-07-10
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2133020-7
ISSN	1741-7007 ; 1741-7007
ISSN (online)	1741-7007
ISSN	1741-7007
DOI	10.1186/s12915-023-01648-5
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Article ; Online: Sex-Specific Responses of Life Span and Fitness to Variation in Developmental Versus Adult Diets in Drosophila melanogaster.

Duxbury, Elizabeth M L / Chapman, Tracey

The journals of gerontology. Series A, Biological sciences and medical sciences

2019 Volume 75, Issue 8, Page(s) 1431–1438

Abstract: Nutritional variation across the lifetime can have significant and sex-specific impacts on fitness. Using Drosophila melanogaster, we measured these impacts by testing the effects on life span and reproductive success of high or low yeast content in ... ...

Abstract	Nutritional variation across the lifetime can have significant and sex-specific impacts on fitness. Using Drosophila melanogaster, we measured these impacts by testing the effects on life span and reproductive success of high or low yeast content in developmental versus adult diets, separately for each sex. We tested two hypotheses: that dietary mismatches between development and adulthood are costly and that any such costs are sex-specific. Overall, the results revealed the rich and complex responses of each sex to dietary variation across the lifetime. Contrary to the first hypothesis, dietary mismatches between developmental and adult life stages were not universally costly. Where costs of nutritional variation across the life course did occur, they were sex-, context-, and trait-specific, consistent with hypothesis 2. We found effects of mismatches between developmental and adult diets on reproductive success in females but not males. Adult diet was the main determinant of survival, and life span was significantly longer on high yeast adult food, in comparison to low, in both sexes. Developing on a high yeast diet also benefited adult female life span and reproductive success, regardless of adult diet. In contrast, a high yeast developmental diet was only beneficial for male life span when it was followed by low yeast adult food. Adult diet affected mating frequency in opposing directions, with males having higher mating frequency on high and females on low, with no interaction with developmental diet for either sex. The results emphasize the importance of sex differences and of the directionality of dietary mismatches in the responses to nutritional variation.
MeSH term(s)	Animals ; Diet ; Drosophila melanogaster/growth & development ; Drosophila melanogaster/physiology ; Female ; Fertility ; Genetic Fitness ; Larva/growth & development ; Larva/physiology ; Longevity ; Male ; Reproduction ; Sex Factors ; Survival Analysis ; Yeasts
Language	English
Publishing date	2019-07-30
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	1223643-3
ISSN	1758-535X ; 1079-5006
ISSN (online)	1758-535X
ISSN	1079-5006
DOI	10.1093/gerona/glz175
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Article ; Online: Sex-biased gene expression in nutrient-sensing pathways.

Bennett-Keki, Suzanne / Fowler, Emily K / Folkes, Leighton / Moxon, Simon / Chapman, Tracey

Proceedings. Biological sciences

2023 Volume 290, Issue 1994, Page(s) 20222086

Abstract: Differences in lifespan between males and females are found across many taxa and may be determined, at least in part, by differential responses to diet. Here we tested the hypothesis that the higher dietary sensitivity of female lifespan is mediated by ... ...

Abstract	Differences in lifespan between males and females are found across many taxa and may be determined, at least in part, by differential responses to diet. Here we tested the hypothesis that the higher dietary sensitivity of female lifespan is mediated by higher and more dynamic expression in nutrient-sensing pathways in females. We first reanalysed existing RNA-seq data, focusing on 17 nutrient-sensing genes with reported lifespan effects. This revealed, consistent with the hypothesis, a dominant pattern of female-biased gene expression, and among sex-biased genes there tended to be a loss of female-bias after mating. We then tested directly the expression of these 17 nutrient-sensing genes in wild-type third instar larvae, once-mated 5- and 16-day-old adults. This confirmed sex-biased gene expression and showed that it was generally absent in larvae, but frequent and stable in adults. Overall, the findings suggest a proximate explanation for the sensitivity of female lifespan to dietary manipulations. We suggest that the contrasting selective pressures to which males and females are subject create differing nutritional demands and requirements, resulting in sex differences in lifespan. This underscores the potential importance of the health impacts of sex-specific dietary responses.
MeSH term(s)	Female ; Male ; Animals ; Cell Communication ; Larva/genetics ; Longevity ; Gene Expression ; Nutrients
Language	English
Publishing date	2023-03-08
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	209242-6
ISSN	1471-2954 ; 0080-4649 ; 0962-8452 ; 0950-1193
ISSN (online)	1471-2954
ISSN	0080-4649 ; 0962-8452 ; 0950-1193
DOI	10.1098/rspb.2022.2086
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Article ; Online: Evolution of ageing as a tangle of trade-offs: energy versus function.

Maklakov, Alexei A / Chapman, Tracey

Proceedings. Biological sciences

2019 Volume 286, Issue 1911, Page(s) 20191604

Abstract: Despite tremendous progress in recent years, our understanding of the evolution of ageing is still incomplete. A dominant paradigm maintains that ageing evolves due to the competing energy demands of reproduction and somatic maintenance leading to slow ... ...

Abstract	Despite tremendous progress in recent years, our understanding of the evolution of ageing is still incomplete. A dominant paradigm maintains that ageing evolves due to the competing energy demands of reproduction and somatic maintenance leading to slow accumulation of unrepaired cellular damage with age. However, the centrality of energy trade-offs in ageing has been increasingly challenged as studies in different organisms have uncoupled the trade-off between reproduction and longevity. An emerging theory is that ageing instead is caused by biological processes that are optimized for early-life function but become harmful when they continue to run-on unabated in late life. This idea builds on the realization that early-life regulation of gene expression can break down in late life because natural selection is too weak to optimize it. Empirical evidence increasingly supports the hypothesis that suboptimal gene expression in adulthood can result in physiological malfunction leading to organismal senescence. We argue that the current state of the art in the study of ageing contradicts the widely held view that energy trade-offs between growth, reproduction, and longevity are the universal underpinning of senescence. Future research should focus on understanding the relative contribution of energy and function trade-offs to the evolution and expression of ageing.
MeSH term(s)	Aging/physiology ; Animals ; Biological Evolution ; Humans ; Longevity ; Models, Biological ; Reproduction ; Selection, Genetic
Language	English
Publishing date	2019-09-18
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	209242-6
ISSN	1471-2954 ; 0080-4649 ; 0962-8452 ; 0950-1193
ISSN (online)	1471-2954
ISSN	0080-4649 ; 0962-8452 ; 0950-1193
DOI	10.1098/rspb.2019.1604
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