Individual variation in the costs of molecular parental investment: cooperation, conflict and mutualism in family life
Lead Research Organisation:
University of Cambridge
Department Name: Zoology
Abstract
Understanding the evolution of cooperation is arguably a key element of understanding the evolution of life. A major outstanding challenge is to explain individual variation in contributions to cooperation. We propose to investigate whether the fitness costs associated with cooperative behaviour can explain individual contributions to cooperation. Our experiments will focus on parental investment, a commonly overlooked form of cooperation. We will focus specifically on a novel aspect of burying beetle parental investment: the antibacterial activity of the anal exudates, which the beetles use to protect their breeding resource from bacterial attack. Burying beetles are ideal for this work because we can quantify and manipulate the fitness costs of this form of parental investment in a way that few other study systems would allow. We propose to identify intrinsic sources of variation in the costs of providing parental investment by inducing trade-offs with the immune system, by varying developmental conditions in early life, and by examining the underlying genetic architecture of the antibacterial activity in the anal exudates. We also plan to identify the antibacterial molecules in the anal exudates, as a first step towards identifying the genes involved in their production. (These molecules could also turn out to be of medical or agricultural value). We shall determine extrinsic sources of individual variation in the costs of this molecular parental investment by experimentally varying ecological conditions and by manipulating social influences on the costs of parental investment by changing the partner's level of parental investment. Finally, burying beetles appear to have a mutually beneficial relationship with mites, which they transport between breeding opportunities. We shall investigate whether mites influence the costs of parental investment by adding or removing them from breeding beetles. Our proposal is novel and of high scientific value because i) it proposes to measure and manipulate fitness costs and constraints associated with cooperation in multiple ways; ii) it combines analyses of immune function with cooperation and conflict within the family; and iii) it spans multiple levels of biological analysis by investigating how social interactions and interactions between species influence investment at both the molecular and physiological level.
Publications
Attisano A
(2015)
Parental effects and flight behaviour in the burying beetle, Nicrophorus vespilloides.
in Animal behaviour
Cotter S
(2011)
Age-specific reproductive investment in female burying beetles: independent effects of state and risk of death Age-specific reproductive investment
in Functional Ecology
Cotter SC
(2013)
A direct physiological trade-off between personal and social immunity.
in The Journal of animal ecology
De Gasperin O
(2016)
Fitness costs associated with building and maintaining the burying beetle's carrion nest.
in Scientific reports
De Gasperin O
(2019)
The early-life environment and individual plasticity in life-history traits.
in Ecology and evolution
De Gasperin O
(2015)
Interspecific interactions explain variation in the duration of paternal care in the burying beetle.
in Animal behaviour
Duarte A
(2016)
Social immunity of the family: parental contributions to a public good modulated by brood size.
in Evolutionary ecology
Description | We discovered a trade-off between personal immunity (ie an immune defence that functions to protect the individual that produces it) and social immunity (ie an immune defence that functions to protect others). We identified a gene associated with social immune function. We showed showed that individual variation expression of this gene was tightly correlated with individual variation in the antimicrobial potency of fluids produced by the adult. We showed that mothers and offspring each contribute to social immunity, and that mothers adjust their contributions according to the scale of contributions by their young. We showed that burying beetles restructure the microbial community on the carcass they breed upon. We found that mites carried by beetles also contribute to this restructuring process but we were unable to detect a fitness benefit of these actions in the benign conditions of our lab. |
Exploitation Route | The transcriptome can be used to find other molecules involved in antimicrobial function. The burying beetle might have novel antibiotic strategies that remain to be characterised We are carrying out pilot work to test whether the microbial communities associated with the carcass differ between different types of carrion and cause burying beetles to speciate |
Sectors | Environment,Culture, Heritage, Museums and Collections,Pharmaceuticals and Medical Biotechnology |
Description | Our research findings have been shared with a broad audience through TV shows (The One Show, BBC Autumnwatch); radio (on In our Time and the Today Programme on BBC radio 4, Swiss and German radio shows); web articles and interviews (Sciencebreaker article, interview on 42Evolution website, Naked Scientist podcast) and talks to the general public (ScienceCafeCambridge, International Women's Day talk) |
First Year Of Impact | 2014 |
Sector | Leisure Activities, including Sports, Recreation and Tourism,Culture, Heritage, Museums and Collections |
Impact Types | Cultural,Societal |
Description | Member of CMS intersessional working group on culture and social complexity |
Geographic Reach | Multiple continents/international |
Policy Influence Type | Participation in a guidance/advisory committee |
Description | Baldwinian Beetles |
Amount | £1,200,000 (GBP) |
Funding ID | 310785-BALDWINIAN BEETLES |
Organisation | European Commission |
Sector | Public |
Country | European Union (EU) |
Start | 11/2012 |
End | 10/2017 |
Description | Theo Murphy Blue Skies Award |
Amount | £150,000 (GBP) |
Organisation | The Royal Society |
Sector | Charity/Non Profit |
Country | United Kingdom |
Start | 01/2017 |
End | 12/2019 |
Title | burying beetle transcriptome |
Description | burying beetle transcriptome of gut, in breeding and non-breeding females |
Type Of Material | Biological samples |
Year Produced | 2016 |
Provided To Others? | Yes |
Impact | none yet |
URL | http://www.ncbi.nlm.nih.gov/nuccore/GDUU00000000 |
Title | burying beetle microbiome |
Description | 16S sequence data of bacterial communities associated with burying beetles during reproduction |
Type Of Material | Database/Collection of data |
Year Produced | 2016 |
Provided To Others? | Yes |
Impact | it has inspired a crop of grant applications, one of which was funded, two of which are pending |
URL | http://biorxiv.org/content/early/2016/07/22/065326 |
Title | experimental datasets |
Description | we created a number of experimental datasets including metagenomic data about bacterial populations |
Type Of Material | Database/Collection of data |
Year Produced | 2014 |
Provided To Others? | Yes |
Impact | new lines of experimental enquiry |
Description | effects of microbes on animals speciation |
Organisation | University of Cambridge |
Department | Centre for Research in the Arts, Social Sciences and Humanities (CRASSH) |
Country | United Kingdom |
Sector | Academic/University |
PI Contribution | Our research laid the foundations for the hypotheses to be addressed in this new collaboration |
Collaborator Contribution | Expertise on speciation and genomic analyses |
Impact | We have submitted a standard research grant to NERC |
Start Year | 2016 |
Description | transcriptomic analysis of social immunity |
Organisation | University of Cambridge |
Department | Department of Genetics |
Country | United Kingdom |
Sector | Academic/University |
PI Contribution | We hired a post-doc with skills in bioinformatics for one month |
Collaborator Contribution | Bioinformatics lab equipment and consumables |
Impact | We published a paper (Palmer et al 2016) in Proc R Soc B |
Start Year | 2015 |
Description | 42 website |
Form Of Engagement Activity | A broadcast e.g. TV/radio/film/podcast (other than news/press) |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Public/other audiences |
Results and Impact | I was interviewed for the website: 42Evolution, a project designed to bring ideas about evolution to a wide and general audience |
Year(s) Of Engagement Activity | 2015 |
URL | http://www.42evolution.org/videos/researcher/professor-rebecca-kilner/ |
Description | Acts of kindness |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | Local |
Primary Audience | Public/other audiences |
Results and Impact | A stage show, part of Cambridge University Science Festival, combining a play about Bill Hamilton and George Price with scientists talking about their research on competition and cooperation none |
Year(s) Of Engagement Activity | 2013 |
URL | http://www.cam.ac.uk/sciencefestival/2013/03/18/acts-of-kindness/ |
Description | In our Time |
Form Of Engagement Activity | A press release, press conference or response to a media enquiry/interview |
Part Of Official Scheme? | No |
Geographic Reach | National |
Primary Audience | Public/other audiences |
Results and Impact | this activity has not yet happened |
Year(s) Of Engagement Activity | 2014 |
Description | Interview with Science magazine |
Form Of Engagement Activity | A magazine, newsletter or online publication |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Professional Practitioners |
Results and Impact | A journalist from Science, Elizabeth Pennisi, attended ESEB congress in August 2017 and wrote an article about the presentation of my NERC-funded work. I had some press interest afterwards, and did two radio interviews for Swiss and German radio |
Year(s) Of Engagement Activity | 2017 |
URL | http://www.sciencemag.org/news/2017/08/burying-beetles-mix-special-growth-potion-their-young-one-par... |
Description | Keynote presentation, International Women's day |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | Local |
Primary Audience | Schools |
Results and Impact | Keynote talk at an event on International Women's Day to encourage youmg women to pursue careers in biology and conservation. More than 100 people came and left contact details for further engagement activities |
Year(s) Of Engagement Activity | 2018 |
URL | https://www.cam.ac.uk/news/conservationists-gather-to-mark-international-womens-day |
Description | Science Cafe Cambridge |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | Regional |
Primary Audience | Public/other audiences |
Results and Impact | This involved a member of my team talking to interested passers by, gathered for the event in the street, about their research. There were a lot of interesting questions afterwards for those that attended |
Year(s) Of Engagement Activity | 2015 |
URL | https://scicafecambridge.files.wordpress.com/2015/01/science-cafc3a9-impact-report.pdf |
Description | Talk for Cambridge University Alumni |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | National |
Primary Audience | Supporters |
Results and Impact | Talk for 150th anniversary celebrations of Department of Zoology. Attended by 50-100 Cambridge University alumni, not all scientists. Sparked questions and discussions afterwards |
Year(s) Of Engagement Activity | 2016 |
Description | The One Show |
Form Of Engagement Activity | A press release, press conference or response to a media enquiry/interview |
Part Of Official Scheme? | No |
Geographic Reach | National |
Primary Audience | Media (as a channel to the public) |
Results and Impact | The activity has not yet happened |
Year(s) Of Engagement Activity | 2014 |
Description | The ScienceBreaker |
Form Of Engagement Activity | A magazine, newsletter or online publication |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Public/other audiences |
Results and Impact | Wrote an article for a general audience about our research - to make it more widely known |
Year(s) Of Engagement Activity | 2016 |
URL | http://thesciencebreaker.com/2016/01/27/break007/ |
Description | Today Programme |
Form Of Engagement Activity | A press release, press conference or response to a media enquiry/interview |
Part Of Official Scheme? | No |
Geographic Reach | National |
Primary Audience | Media (as a channel to the public) |
Results and Impact | Interviewed on the Today programme about our research. Interview sparked further invitations to talk to general audiences and to write a general science book for Pelican books |
Year(s) Of Engagement Activity | 2015 |
Description | video about our work |
Form Of Engagement Activity | A broadcast e.g. TV/radio/film/podcast (other than news/press) |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Public/other audiences |
Results and Impact | video about our work for 'Eureka Moments' series, commissioned by Dept of Zoology for 150th celebrations posted on website and broadcast to a packed lecture theatre alongside all other such films |
Year(s) Of Engagement Activity | 2016 |
URL | http://www.zoo.cam.ac.uk/directory/rebecca-kilner |