PUBLICATION
Deterministic and probabilistic fate decisions co-exist in a single retinal lineage
- Authors
- Nerli, E., Kretzschmar, J., Bianucci, T., Rocha-Martins, M., Zechner, C., Norden, C.
- ID
- ZDB-PUB-230516-29
- Date
- 2023
- Source
- The EMBO journal 42(14): e112657 (Journal)
- Registered Authors
- Nerli, Elisa, Norden, Caren
- Keywords
- fate decisions, live imaging, modelling, neurogenesis, zebrafish
- MeSH Terms
-
- Animals
- Cell Differentiation/physiology
- Cell Lineage
- Neurogenesis/physiology
- Retina*/metabolism
- Stem Cells/metabolism
- Zebrafish*/genetics
- PubMed
- 37184124 Full text @ EMBO J.
Citation
Nerli, E., Kretzschmar, J., Bianucci, T., Rocha-Martins, M., Zechner, C., Norden, C. (2023) Deterministic and probabilistic fate decisions co-exist in a single retinal lineage. The EMBO journal. 42(14):e112657.
Abstract
Correct nervous system development depends on the timely differentiation of progenitor cells into neurons. While the output of progenitor differentiation is well investigated at the population and clonal level, how stereotypic or variable fate decisions are during development is still more elusive. To fill this gap, we here follow the fate outcome of single neurogenic progenitors in the zebrafish retina over time using live imaging. We find that neurogenic progenitor divisions produce two daughter cells, one of deterministic and one of probabilistic fate. Interference with the deterministic branch of the lineage affects lineage progression. In contrast, interference with fate probabilities of the probabilistic branch results in a broader range of fate possibilities than in wild-type and involves the production of any neuronal cell type even at non-canonical developmental stages. Combining the interference data with stochastic modelling of fate probabilities revealed that a simple gene regulatory network is able to predict the observed fate decision probabilities during wild-type development. These findings unveil unexpected lineage flexibility that could ensure robust development of the retina and other tissues.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping