Open research questions in Developmental Biology and Gene Regulation
345 gap statements mined from Developmental Biology and Gene Regulation papers in our 7.9M-paper local library, which holds 1,457 papers on the topic — drawn mostly from each paper's own stated research gap, future-work, challenge and limitation notes, and its abstract. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one.
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What the literature leaves open
Nevertheless, such results were unexpected, as early expression of hcn4 and hcn4l has not been reported in common scRNA-seq databases such as DanioCell43,44.
Further study of the molecular biological processes involved in spermatogenesis and ovogenesis, - Investigation of the genetic markers that could be key modulators in the reproductive success of O.
Deciphering Gamete Differentiation in Ostrea edulis using Laser Capture Microdissection and RNA-seq · 2026 · DOIThe lack of effective strategies for reversing tissue injury in autoimmune diseases. The need to develop new therapeutic approaches for the treatment of autoimmune diseases.
Future work should address how long active identity gene expression is required, whether mechanical strain reinforces identity gene expression, and whether metabolic stress can destabilise fibrillar identity.
Signalling networks orchestrating the development of Drosophila indirect flight muscles · 2026 · DOIVasculogenesis establishes the embryonic circulatory system, yet how a common vascular program emerges across multiple embryonic and extraembryonic developmental environments remains incompletely understood.
As cattle have not been traditionally considered a model species and the molecular details of germ cell development don't directly inform production practices, the specification of primordial germ cells in the bovine embryo has remained understudied and poorly understood.
Dissecting the development of the early lineages and primordial germ cells in the bovine embryo · 2025 · DOIHowever, the process by which fate-determined cells form three-dimensional organismal shapes remains unclear.
However, the maternal factors regulating the assembly of germ plasm and PGC development remain poorly understood.
Whether these transitions share a conserved genetic architecture, and how that architecture evolves remains unclear.
A post-embryonic specific and ecologically selective network underlies metamorphic remodelling in teleosts · 2026 · DOIThe exact mechanisms of the fin-to-limb transition are not fully understood. The genetic mechanisms of spatial limb bud development and the possible modifications of these mechanisms associated with the transformation of ancestral fins into pentadactyl terrestrial limbs require further study.
Future studies could investigate the molecular mechanisms underlying the role of cell division in neural plate formation and anterior-posterior patterning. Further research could explore the implications of this study's findings for understanding the mechanisms of brain malformations.
Further studies can investigate the molecular mechanisms underlying the relationship between cell behaviours and morphogenesis. The use of light-sheet fluorescence microscopy and semi-automated image segmentation can be applied to other studies of developmental biology. Studies can explore the application of the study's findings to the development of new therapies for facial abnormalities.
The functions of these chemosensors on wild type wings is not fully understood but roles in pheromone sensing and grooming activities induced by bacterial chemicals have been identified for some of them.
The mechanisms underlying tissue-scale epithelial curvature transitions are poorly understood. How ECM remodeling is dynamically regulated in vivo to drive reproducible tissue-scale morphogenesis remains poorly understood.
Extrinsic MMPs drive epithelial shape change via basal extracellular matrix disassembly in the Drosophila wing disc · 2026 · DOIFlexible subcellular compartmentalization of multivalent proteins is a powerful, but understudied, driver of dynamic modularity in regulatory networks, defining an architecture in which context-sensing bridges between distributed subnetworks allow simultaneous access to alternative regulatory states.
Subcellular compartmentalization expands the regulatory repertoire of a conserved developmental network · 2026 · DOIWhile PCP mechanisms are well characterized in continuous epithelial tissues, whether PCP-dependent polarity propagation can operate across discontinuous neuronal structures remains unclear.
The study has limited statistical power due to the small sample size. Bulk RNA-seq has limitations in characterizing DE genes. Cross-species comparisons are difficult due to technical challenges.
Long noncoding RNAs (lncRNAs) are crucial in porcine preimplantation embryonic development, yet their regulatory role during zygote genome activation (ZGA) is poorly understood.
LncRNA XLOC-040580 targeted by TPRA1 coordinate zygotic genome activation during porcine embryonic development · 2025 · DOIDespite its central importance to morphogen gradient formation, in many systems the dynamics of specification and growth of the morphogen source are poorly understood. How specification and growth contribute to the dynamic formation of producing domains and in turn to morphogen gradient shape is poorly understood.
Phenotypes evolve through changes in gene regulatory networks (GRNs), but how changes in network topology contribute to phenotypic evolution is still poorly understood.
Integration of paleontological fossil data (from Panderichthys, Tiktaalik, and Elpistostege) with molecular-level mechanistic studies of appendage development in living sarcopterygians requires explicit functional validation of how specific morphological features observed in fossils (partial dermal fin ray reduction, dorso-ventral specification) relate to underlying genetic regulatory changes.
Complexity of the gonadal structure, - All gamete developmental stages coexist within the same tissue, - Limited understanding of the transcriptional regulatory networks controlling gamete…
Deciphering Gamete Differentiation in Ostrea edulis using Laser Capture Microdissection and RNA-seq · 2026 · DOIFurther investigation of the molecular mechanisms underlying the reorganization of the apical surface. Investigation of the role of E-cadherin in other systems and diseases. Development of novel therapies and biomaterials based on the discovery of a novel mechanism for establishing adhesion between epithelial and non-epithelial cell types.
Reorganization of E-cadherin into apical spot junctions mediates interlineage adhesion between epithelial and germline cells · 2026 · DOIFinally, some of the tested regulatory elements may have a repressive function, something our MPRA design is insufficiently powered to detect due to the low…
In vitro massively parallel screening of human regulatory elements involved in postcranial skeletal development for differential activity compared to chimpanzee. · 2026 · DOIUnderstanding how neural crest mesenchymal cells acquire precise positional information without compromising stemness. Resolving the temporal sequence of condensation anchoring.
Transient Epithelial Mimicry by Neural Crest Mesenchyme Anchors Cell Condensations Across Avian Beaks · 2026 · DOI
Most-cited papers in Developmental Biology and Gene Regulation
- Notch Signaling: Cell Fate Control and Signal Integration in Development · Science · 1999 · 4,911 citations
- Mutations affecting segment number and polarity in Drosophila · Nature · 1980 · 3,483 citations
- STATs and Gene Regulation · Science · 1997 · 3,228 citations
- A gene complex controlling segmentation in Drosophila · Nature · 1978 · 3,039 citations
- Spatial partitioning of the regulatory landscape of the X-inactivation centre · Nature · 2012 · 2,961 citations
- Adaptive protein evolution at the Adh locus in Drosophila · Nature · 1991 · 2,520 citations
- Developmental regulation of the growth plate · Nature · 2003 · 2,474 citations
- Morphogenesis versus Structuration: On Combining Structure and Action · British Journal of Sociology · 1982 · 471 citations
- Single-cell and spatial transcriptomics reveal somitogenesis in gastruloids · Nature · 2020 · 427 citations
- Errors of morphogenesis: Concepts and terms · The Journal of Pediatrics · 1982 · 348 citations
Most recent work
- Genome modelling and design across all domains of life with Evo 2 · Nature · 2026
- Ontogeny of the spinal cord dorsal horn · Science · 2026
- Unbiased profiling of multipotency landscapes reveals spatial modulators of clonal fate biases · bioRxiv · 2026
- Geometry-driven asymmetric cell divisions pattern cell cycles and zygotic genome activation in the zebrafish embryo · Nature Physics · 2026
- The evolution of gene regulation in mammalian cerebellum development · Science · 2026
- Notch signaling in the tumor microenvironment: recent advances and targeted therapeutics · Molecular Cancer · 2026
- The Notch1 intracellular domain orchestrates mechanotransduction of fluid shear stress · Life Science Alliance · 2026
- Evolutionary innovation within conserved gene regulatory networks underlying biomineralized skeletons in Bilateria · Molecular Biology and Evolution · 2026
- Mechanical regulation of cuboidal-to-squamous epithelial transition in the Drosophila developing wing · Current Biology · 2026
- Inverse expression of Ten3 and Lphn2 across the developing mouse brain suggests a global strategy for circuit assembly · Current Biology · 2026
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