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MorphoPace: Understanding the conserved mechanisms pacing morphogenesis

Descrizione del progetto

Tempi di sviluppo embrionale dei pesci

Durante lo sviluppo, l’embrione subisce un processo biologico coordinato che coinvolge la differenziazione cellulare e la morfogenesi. Mentre comprendiamo sempre meglio il controllo molecolare del differenziamento cellulare, restano ancora poco chiari il meccanismo e la tempistica dei movimenti morfogenetici. Con il sostegno del programma di azioni Marie Skłodowska-Curie, il progetto MorphoPace intende delineare la gastrulazione, un evento morfogenetico precoce determinante. Per individuare tempi e ritmi della gastrulazione, i ricercatori studieranno diverse specie di pesci, caratterizzeranno le dinamiche delle cellule e dei tessuti e studieranno il ruolo dell’ambiente. Nel complesso, il lavoro migliorerà la nostra comprensione dei principali processi di sviluppo.

Obiettivo

Animal development relies on the timely succession of different differentiation, in which cells acquire a certain identity and function, and morphogenetic, in which cells are placed in the part of the animal body, steps. These conserved steps follow a highly stereotypical timing among animals of the same species, but, remarkably, it varies significantly across species. For example, gastrulation, the first morphogenetic movement shaping the embryo, takes 2.5x longer in medaka (Oryzias latipes) than zebrafish (Danio rerio) in the same conditions. Although these differences are well known, it remains unclear how time is kept during development. Recent work has shown that molecular differences between species define the pace of differentiation. It is unclear, however, how these scale up to set the pace of morphogenesis, a collective process that happens across embryos, and set by active cell movements and resisting tissue material properties. With this project, I aim to understand these pace morphogenesis, by comparing gastrulation in two fish species: zebrafish and medaka. Since the latter species remains undescribed, I will first characterize mesendoderm internalization, the opening act of gastrulation. I will map single-cell properties and tissue-scale features, and use a theoretical physics model to make predictions about timing differences between species. Secondly, I will define whether pace is intrinsic to the cells, or set by the native environment, by transplanting cells between embryos of different species, and using zebrafish-medaka hybrids. Finally, I will manipulate the pace of internalization by modulating both intrinsic forces and the tissue state. Altogether, this project will build a way to understand morphogenesis by comparing different fish species, which have broad implications in biology, physics and evolution by uncovering how embryos time development across teleost fish, the largest and most diverse class of vertebrates in the planet.

Campo scientifico (EuroSciVoc)

Parole chiave

Programma(i)

Argomento(i)

Meccanismo di finanziamento

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Invito a presentare proposte

(si apre in una nuova finestra) HORIZON-MSCA-2024-PF-01

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Coordinatore

FORSCHUNGSINSTITUT FUR MOLEKULARE PATHOLOGIE GESELLSCHAFT MBH
Contributo netto dell'UE
€ 214 344,72
Indirizzo
CAMPUS-VIENNA-BIOCENTER 1
1030 Wien
Austria
Regione
Ostösterreich Wien Wien
Tipo di attività
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Collegamenti
Costo totale
Nessun dato