Issues
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Cover image
Cover Image
Cover: A confocal projection (pseudocoloured yellow) of the blood vasculature of a 72 hpf Tg(fli1a:egfp) zebrafish embryo injected with flt1 morpholino. Flt1 suppresses Vegfd and Vegfc signalling, which drives hyperbranching in developing intersegmental arteries. See Research article by Bower et al. on p. 507.
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IN THIS ISSUE
MEETING REVIEW
Trends in tissue repair and regeneration
Summary: This review of a recent EMBO conference draws together emerging themes in regeneration research and highlights the diversity of regeneration strategies in different organ systems and species.
HYPOTHESIS
Formative pluripotency: the executive phase in a developmental continuum
Summary: This Hypothesis article poses that a third state of pluripotency, called formative pluripotency, exists between the naïve and primed states, and is enabling for the execution of pluripotency.
REVIEW
Cellular and molecular mechanisms of tooth root development
Summary: This Review discusses the factors involved in tooth root development and in human root developmental defects, and highlights the role of stem cells in establishing the crown-to-root transition.
STEM CELLS AND REGENERATION
Prdm16 is crucial for progression of the multipolar phase during neural differentiation of the developing neocortex
Summary: During mouse neurogenesis, levels of mitochondrial reactive oxygen species (mtROS) decline during differentiation. Prdm16 and PGC1α are candidate regulators of this metabolic shift.
Stage- and subunit-specific functions of polycomb repressive complex 2 in bladder urothelial formation and regeneration
Summary: In mouse, mutations in different subunits of the PRC2 complex have specific effects on urothelial progenitor cell proliferation and differentiation.
RESEARCH ARTICLES
The Ectocarpus IMMEDIATE UPRIGHT gene encodes a member of a novel family of cysteine-rich proteins with an unusual distribution across the eukaryotes
Highlighted article: In the brown alga Ectocarpus, the IMMEDIATE UPRIGHT gene encodes a member of the rapidly evolving EsV-1-7 family that regulates early development in the sporophyte generation.
Reciprocal signaling by Wnt and Notch specifies a muscle precursor in the C. elegans embryo
Highlighted article: Generation of muscle from one specific C. elegans 8-cell stage blastomere requires two cell-cell interactions. Notch-induced zygotic MOM-2 (Wnt) is responsible for both interactions.
Neomorphic effects of the neonatal anemia (Nan-Eklf) mutation contribute to deficits throughout development
Highlighted article: The Nan mouse contains a heterozygous mutation in Eklf/Klf1 that ectopically activates misexpressed genes, leading to intrinsic erythroid and systemic developmental deficits.
Sirt1 regulates acrosome biogenesis by modulating autophagic flux during spermiogenesis in mice
Summary: Germ cell-specific ablation of the sirtuin Sirt1 causes infertility, due to disruption of the autophagy pathway and consequent defects in acrosome biogenesis.
A MAPK cascade couples maternal mRNA translation and degradation to meiotic cell cycle progression in mouse oocytes
Summary: MAPK-mediated phosphorylation and degradation of CPEB1 triggers meiotic cell cycle-coupled translation of dormant maternal mRNAs during oocyte maturation and maternal-zygotic transition.
An exclusive cellular and molecular network governs intestinal smooth muscle cell differentiation in vertebrates
Summary: Lineage tracing approaches in zebrafish reveal that intestinal smooth muscle originates from the lateral plate mesoderm. Migration and differentiation of these cells involves TGFβ signaling.
Intrinsic properties of limb bud cells can be differentially reset
Summary: Grafting experiments in chick wing buds show that autopod fate is intrinsically defined, while early but not late autopod cells can adopt host proliferation rates when transplanted into the zeugopod.
The Abl pathway bifurcates to balance Enabled and Rac signaling in axon patterning in Drosophila
Summary: Genetic epistasis, protein localization and FRET assays reveal the functional organization of the Abl signaling network - a highly conserved and ubiquitous system that controls cell morphology and motility.
The chemical compound bubblin induces stomatal mispatterning in Arabidopsis by disrupting the intrinsic polarity of stomatal lineage cells
Summary: In Arabidopsis, a pyridine-thiazole derivative, bubblin, disrupts polarity in stomatal stem cells, resulting in ectopic retention of the key transcription factor SPEECHLESS and stomatal mispatterning.
Vegfd modulates both angiogenesis and lymphangiogenesis during zebrafish embryonic development
Summary: VEGFD has been considered dispensable for vascular development in vertebrates. Its mutation reveals that Vegfd plays context-specific and compensatory roles during both angiogenesis and lymphangiogenesis.
TECHNIQUES AND RESOURCES
Genetic mosaics and time-lapse imaging identify functions of histone H3.3 residues in mouse oocytes and embryos
Summary: A mouse model allowing mosaic expression of wild-type or mutant histone H3.3 variants provides insights into the function of specific histone residues during oogenesis and early development.
PUBLISHER'S NOTE
CORRECTIONS
ARTICLES OF INTEREST IN OUR OTHER JOURNALS
From Journal of Cell Science
Development Journal Meeting 2022: From Stem Cells to Human Development
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Following a virtual meeting in 2020, we are delighted to announce that the fifth iteration of our popular Journal Meeting will be held from 11-14 September 2022 at the historic Wotton House, Surrey. Registration is open now.
Special Issue: The Immune System in Development and Regeneration
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Our latest special issue is now complete. It showcases articles that add to the repertoire of immune cell functions during development, repair and regeneration, and provide insights into the developmental pathways leading to the generation and dispersal of these cells. You can watch recordings from our Development presents... webinar celebrating the special issue here.
Propose a new Workshop
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Our Workshops bring together leading experts and early-career researchers from a range of scientific backgrounds. Applications are now open to propose Workshops for 2024, one of which will be held in a Global South country.
Preprints in Development
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As part of our efforts to support the use of preprints and help curate the preprint literature, we are delighted to launch a new article type: ‘In preprints’. These pieces will discuss one or more recent preprints and place them in a broader context. You can read the first article here.
FocalPlane Network launched
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Like the Node Network, the aim of the FocalPlane Network is to facilitate promotion and networking as well as assist those seeking conference speakers, committee members, reviewers or collaborators. We hope that it will help promote diversity in the community. Find out more and join the Network here.