Opis projektu
Różnorodne procesy reprodukcyjne u wieloszczetów
Różne gatunki siostrzane wieloszczetów Platynereis mają różne procesy reprodukcyjne. Platynereis dumerilii rozmnażają się jednokrotnie po pełni księżyca, uwalniając gamety do wody, gdzie dochodzi do zapłodnienia i rozwoju embrionalnego. Wkrótce potem zarówno osobniki obu płci umierają. Z kolei jaja Platynereis massiliensis rozwijają się w młode wewnątrz rurki wylęgowej samca – samica umiera, a ojciec zmienia płeć i proces się powtarza. Zakwaszenie oceanów może mieć daleko idący i zróżnicowany wpływ na przeżywalność. Przy wsparciu programu działań „Maria Skłodowska-Curie” projekt MOM-OR-DAD zbada molekularne i genomowe podstawy różnych strategii reprodukcyjnych i czasu rozrodu u wieloszczetów Platynereis.
Cel
Alternative developmental and reproductive programs provide powerful sources of adaptive variation, which greatly enhances survival in changing environments. Yet, how divergent reproductive strategies and traits evolve remains poorly investigated particularly in the ocean, where the dramatic effects of climate change and anthropogenic impact on reproductive dynamics threaten entire animal communities. For this, I plan to close this knowledge gap by investigating the molecular and genomic basis underlying the divergent reproductive strategies and reproductive timing in Platynereis marine bristleworms. These animals are easy to breed in laboratory conditions, are genetically-accessible, and display a kaleidoscopic diversity of reproductive traits in closely-related species. Specifically, I plan to: 1) dissect the molecular mechanisms of the drastically divergent reproductive strategies of the sister species P. dumerilii and P. massiliensis, and 2) decode the genomic basis of alternative lunar reproductive periodicity in Platynereis species. Thus, I will combine my experience in working on the reproduction and chronobiology of these models with evolutionary genetics, population and comparative genomics, functional genomics and transcriptomics strategies mastered in the host lab. On one hand, I will provide ground-breaking insights on how molecular machinery can be drastically rewired generating novel and adaptive combinations of reproductive traits. On the other, I will shed light on the elusive molecular nature of lunar reproductive periodicity, a widespread phenomenon particularly in the marine environment, and its evolution. Currently, endocrine disruption and light pollution are severely affecting animal sexual development and reproductive timing, respectively, challenging the conservation of entire ecosystems. In this context, this research will also provide fundamental resources to better understand their effects on the marine environment
Dziedzina nauki
- natural sciencesbiological sciencesgenetics
- natural sciencesearth and related environmental sciencesenvironmental sciencespollution
- natural sciencesbiological sciencesecologyecosystems
- natural sciencesearth and related environmental sciencesatmospheric sciencesclimatologyclimatic changes
- natural sciencesbiological scienceszoologyinvertebrate zoology
Słowa kluczowe
Program(-y)
- HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA) Main Programme
Zaproszenie do składania wniosków
Zobacz inne projekty w ramach tego zaproszeniaSystem finansowania
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European FellowshipsKoordynator
35122 Padova
Włochy