Journal: Development

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Abbreviation

Development

Publisher

Company of Biologists

Journal Volumes

ISSN

0950-1991
1477-9129

Description

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Publications 1 - 10 of 75
  • Villars, Alexis; Letort, Gaelle; Valon, Leo; et al. (2023)
    Development
    Accurately counting and localising cellular events from movies is an important bottleneck of high-content tissue/embryo liv e imaging. Here, we propose a new methodology based on deep learning that allows automatic detection of cellular events and their precise xyt localisation on liv e fluorescent imaging movies without segmentation. We focused on the detection of cell extrusion, the expulsion of dying cells from the epithelial layer, and devised DeXtrusion: a pipeline based on recurrent neural networks for automatic detection of cell extrusion/cell death events in large movies of epithelia mar k e d with cell contour. The pipeline, initially trained on movies of the Drosophila pupal notum marked with fluorescent E-cadherin, is easily trainable, provides fast and accurate extrusion predictions in a large range of imaging conditions, and can also detect other cellular events, such as cell division or cell differentiation. It also performs well on other epithelial tissues with reasonable re-training. Our methodology could easily be applied for other cellular events detected by liv e fluorescent microscopy and could help to democratise the use of deep learning for automatic event detections in developing tissues.
  • Exner, Vivien; Taranto, Patti; Schönrock, Nicole; et al. (2006)
    Development
  • Leroy, Olivier; Hennig, Lars; Breuninger, Holger; et al. (2007)
    Development
    Polycomb group (PcG) proteins are evolutionary conserved proteins that stably maintain established transcriptional patterns over cell generations. The FERTILIZATION INDEPENDENT SEED (FIS) PcG complex from plants has a similar composition to the Polycomb repressive complex 2 from animals. Mutations in FIS genes cause parent-of-origin-dependent seed abortion. Every seed inheriting a mutant fis allele from the mother is destined to abort,regardless of the presence of a wild-type paternal allele. We tested in Arabidopsis whether the parent-of-origin-dependent seed abortion caused by lack of the FIS subunit MSI1 is caused by parental imprinting of the MSI1 gene. Our data show that MSI1 is not an imprinted gene and that early paternal MSI1 expression is not sufficient to rescue msi1 mutant seeds. By contrast, expression of MSI1 in msi1 female gametophytes is necessary to restore normal seed development, strongly arguing that the female gametophytic effect of fis mutants is caused by a functional requirement for an intact FIS complex in the female gametophyte. Thus, FIS-mediated expression patterns established in the female gametophyte can impact on seed development,establishing fis mutants as true female gametophytic maternal-effect mutants.
  • Vollmer, Jannik; Fried, Patrick; Sánchez-Aragón, Max; et al. (2016)
    Development
  • Cortical development
    Item type: Journal Article
    Götz, Magdalena; Sommer, Lukas (2005)
    Development
  • Parusel, Christine T.; Kritikou, Ekaterini A.; Hengartner, Michael O.; et al. (2006)
    Development
  • Probst, Simone; Kraemer, Conradin; Demougin, Philippe; et al. (2011)
    Development
  • Maddaluno, Luigi; Urwyler, Corinne; Werner, Sabine (2017)
    Development
  • Haecker, Achim; Berman, Mattias; Neupert, Christine; et al. (2008)
    Development
  • Ringrose, Leonie; Paro, Renato (2007)
    Development
Publications 1 - 10 of 75