MALEPREG SIGNED
Male pregnancy – Unravelling the coevolution of parental investment and immune defence
Total Cost €
0EC-Contrib. €
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Project "MALEPREG" data sheet
The following table provides information about the project.
| Coordinator |
HELMHOLTZ ZENTRUM FUR OZEANFORSCHUNG KIEL
Organization address contact info |
| Coordinator Country | Germany [DE] |
| Project website | https://www.geomar.de/en/staff/fb3/ev/oroth/ |
| Total cost | 1˙499˙989 € |
| EC max contribution | 1˙499˙989 € (100%) |
| Programme |
1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC)) |
| Code Call | ERC-2017-STG |
| Funding Scheme | ERC-STG |
| Starting year | 2018 |
| Duration (year-month-day) | from 2018-03-01 to 2023-02-28 |
Partnership
Take a look of project's partnership.
| # | ||||
|---|---|---|---|---|
| 1 | HELMHOLTZ ZENTRUM FUR OZEANFORSCHUNG KIEL | DE (KIEL) | coordinator | 1˙499˙989.00 |
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Project objective
The question of how sex roles and parental investment have evolved belongs to the most controversial unresolved issues in evolutionary biology. The costliest form of reproduction regarding parental investment is viviparity. Its independent evolution in most vertebrate groups has required drastic morphological and genomic reorganisations in the sex bearing the young. Yet our knowledge is heavily biased towards mammals, where changes in the immune system and microbial composition are associated with pregnancy and placentation. Which factors have caused the selection and accompanied evolution of viviparity in other vertebrates remains severely understudied. As the evolution of viviparity is a textbook model of convergent evolution, I plan on using a comparative approach to identify selection and fitness benefits leading to the evolution of viviparity. I propose analysing mating system evolution, focusing on the unique evolution of male pregnancy in sex-role reversed syngnathids (pipefishes and seahorses) that show a gradient from external fertilisation to full viviparity and are, thus, ideal to study the evolution of viviparity. Only this genus allows the role of egg production and viviparity to be disentangled, as both traits co-occur in the female in most other species. As immunological tolerance is fundamentally associated with the evolution of pregnancy, I will investigate how male pregnancy has coevolved with adaptive immune system rearrangements and the broodpouch specific microbiota. Comparative genomics, transcriptomics and genetic engineering utilizing CRISPR/Cas9 will elucidate the genetic basis of trait loss and gain required for male pregnancy. In particular, I will assess whether new functions arose via gene duplication and neo-functionalization, via gene co-option or via de novo gene emergence. This proposal will pave the way for studying viviparity evolution beyond the mammalian model and will provide a fresh look at sex roles and parental investment.
Publications
| year | authors and title | journal | last update |
|---|---|---|---|
| 2019 |
Anne Beemelmanns, Maude Poirier, Till Bayer, Sven Kuenzel, Olivia Roth Microbial embryonal colonization during pipefish male pregnancy published pages: , ISSN: 2045-2322, DOI: 10.1038/s41598-018-37026-3 |
Scientific Reports 9/1 | 2019-11-07 |
| 2019 |
Charlotte Jessica E. Metcalf, Olivia Roth, Andrea L. Graham Why leveraging sex differences in immune tradeâ€offs may illuminate the evolution of senescence published pages: , ISSN: 0269-8463, DOI: 10.1111/1365-2435.13458 |
Functional Ecology | 2019-11-07 |
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