Developmental Genetics
Summary
Developmental genetics seeks to explain how a fertilised egg gives rise to a complex organism through regulated gene activity. Key advances have shown that conserved families of regulatory genes—homeobox (Hox), paired box (Pax), sonic hedgehog, Wnt and fibroblast growth factors—establish the body plan by controlling cell fate, pattern formation and morphogenesis. Gene regulatory networks integrate transcription factors, cis-regulatory elements (enhancers and promoters), chromatin modifications and non-coding RNAs to switch genes on or off at precise times and positions. Embryonic processes such as cleavage, gastrulation, neurulation and organ budding depend on these networks and on dynamic interactions with the cytoskeleton and extracellular matrix. Mutations in developmental genes underlie a wide spectrum of congenital anomalies and inform our understanding of evolution by demonstrating how changes in gene regulation can yield new forms.
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Developmental Genetics publication trend
The graph below shows the total number of articles in developmental genetics across all publications each year (not limited to Nature Index journals).
Technical terms
Gene regulatory network: A web of transcription factors, enhancers, promoters and chromatin modifiers that governs the spatial and temporal expression of genes during development.
Morphogenesis: The process by which cells and tissues change shape and organise into functional structures and organs.
Enhancer: A non-coding DNA element that increases the transcription of a target gene in a cell-type or stage-specific manner.
Homeobox: A 180-base-pair DNA sequence encoding a conserved domain in many developmental transcription factors that bind specific DNA motifs.
Cellularisation: In early Drosophila development, the partitioning of the syncytial blastoderm into individual cells by membrane invagination around each nucleus.
Actomyosin contractility: Force-generating interactions between filamentous actin and myosin motors that drive cell shape changes and tissue tension.
References
- Collective effects of cell cleavage dynamics. Frontiers in Cell and Developmental Biology (2024).
- In Vivo Force Application Reveals a Fast Tissue Softening and External Friction Increase during Early Embryogenesis. Current Biology (2019).
- Cross-linker–mediated regulation of actin network organization controls tissue morphogenesis. Journal of Cell Biology (2019).
- A surfactant lipid layer of endosomal membranes facilitates airway gas filling in Drosophila. Current Biology (2023).
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