Landscape and regulation of mRNA translation in the early C. elegans embryo

Summary: Animal embryos rely on regulated translation of maternally deposited mRNAs to drive early development. Using low-input ribosome profiling combined with RNA sequencing on precisely staged embryos, we measure mRNA translation during the first four cell cycles of C. elegans development. We unc...

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Main Authors: Yash Shukla, Vighnesh Ghatpande, Cindy F. Hu, Daniel J. Dickinson, Can Cenik
Format: Article
Language:English
Published: Elsevier 2025-06-01
Series:Cell Reports
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Online Access:http://www.sciencedirect.com/science/article/pii/S2211124725005492
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author Yash Shukla
Vighnesh Ghatpande
Cindy F. Hu
Daniel J. Dickinson
Can Cenik
author_facet Yash Shukla
Vighnesh Ghatpande
Cindy F. Hu
Daniel J. Dickinson
Can Cenik
author_sort Yash Shukla
collection DOAJ
description Summary: Animal embryos rely on regulated translation of maternally deposited mRNAs to drive early development. Using low-input ribosome profiling combined with RNA sequencing on precisely staged embryos, we measure mRNA translation during the first four cell cycles of C. elegans development. We uncover stage-specific patterns of developmentally coordinated translational regulation. Our results confirm that mRNA localization correlates with translational efficiency, though initial translational repression in germline precursors occurs before P-granule association. Our analysis suggests that the RNA-binding protein OMA-1 represses the translation of its target mRNAs in a stage-specific manner while indirectly promoting the translational efficiency of other transcripts. These findings illuminate how post-transcriptional mechanisms shape the embryonic proteome to direct cell differentiation, with implications for understanding similar regulation across species where maternal factors guide early development.
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spelling doaj-art-e6c6af22470c4247845d4e8f9b1e478b2025-08-20T03:55:22ZengElsevierCell Reports2211-12472025-06-0144611577810.1016/j.celrep.2025.115778Landscape and regulation of mRNA translation in the early C. elegans embryoYash Shukla0Vighnesh Ghatpande1Cindy F. Hu2Daniel J. Dickinson3Can Cenik4Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX 78712, USADepartment of Molecular Biosciences, The University of Texas at Austin, Austin, TX 78712, USADepartment of Molecular Biosciences, The University of Texas at Austin, Austin, TX 78712, USADepartment of Molecular Biosciences, The University of Texas at Austin, Austin, TX 78712, USA; Corresponding authorDepartment of Molecular Biosciences, The University of Texas at Austin, Austin, TX 78712, USA; Corresponding authorSummary: Animal embryos rely on regulated translation of maternally deposited mRNAs to drive early development. Using low-input ribosome profiling combined with RNA sequencing on precisely staged embryos, we measure mRNA translation during the first four cell cycles of C. elegans development. We uncover stage-specific patterns of developmentally coordinated translational regulation. Our results confirm that mRNA localization correlates with translational efficiency, though initial translational repression in germline precursors occurs before P-granule association. Our analysis suggests that the RNA-binding protein OMA-1 represses the translation of its target mRNAs in a stage-specific manner while indirectly promoting the translational efficiency of other transcripts. These findings illuminate how post-transcriptional mechanisms shape the embryonic proteome to direct cell differentiation, with implications for understanding similar regulation across species where maternal factors guide early development.http://www.sciencedirect.com/science/article/pii/S2211124725005492CP: Molecular biologyCP: Developmental biology
spellingShingle Yash Shukla
Vighnesh Ghatpande
Cindy F. Hu
Daniel J. Dickinson
Can Cenik
Landscape and regulation of mRNA translation in the early C. elegans embryo
Cell Reports
CP: Molecular biology
CP: Developmental biology
title Landscape and regulation of mRNA translation in the early C. elegans embryo
title_full Landscape and regulation of mRNA translation in the early C. elegans embryo
title_fullStr Landscape and regulation of mRNA translation in the early C. elegans embryo
title_full_unstemmed Landscape and regulation of mRNA translation in the early C. elegans embryo
title_short Landscape and regulation of mRNA translation in the early C. elegans embryo
title_sort landscape and regulation of mrna translation in the early c elegans embryo
topic CP: Molecular biology
CP: Developmental biology
url http://www.sciencedirect.com/science/article/pii/S2211124725005492
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