Developmental Biology and Gene Regulation

The Hox Gene, abdominal-A, controls the size and timely mitotic entry of neural stem cells during CNS patterning in Drosophila

This study shows that the Hox gene abdA regulates neural stem cell size and timing of mitotic entry during Drosophila CNS development.

The skate spiracular organ develops from a unique neurogenic placode, distinct from lateral line placodes

The paper uses fate-mapping in a cartilaginous fish to show the spiracular organ develops from a unique neurogenic placode, distinct from lateral line placodes, supporting its developmental independence from the lateral line system.

Pdgfab/Pdgfra-mediated chemoattraction guides the migration of sclerotome-derived fibroblast precursors in zebrafish

The paper shows that Pdgfab/Pdgfra-mediated chemoattraction guides sclerotome-derived fibroblast precursors to specific locations in zebrafish, where they differentiate into distinct subtypes.

Ectomesenchymal identity emerges via relief of Twist1transcript destabilization

The paper identifies a vertebrate-specific regulatory mechanism for Twist1 expression in cranial neural crest cells, linking enhancer activity to transcript destabilization.

Biophysical mechanisms of morphogenesis in lizard lungs

The paper investigates morphogenesis in lizard lungs, finding that stress ball morphogenesis is conserved but luminal inflation varies, with apical constriction contributing to transitional chambers in veiled chameleons.

Analysis of cancer mutations introduced into the Drosophila Notch Negative Regulatory Region uncovers a diversity of regulatory outcomes

This study introduces cancer mutations into the Drosophila Notch NRR and identifies diverse regulatory outcomes, including constitutive activation and altered turnover.

Nuclear hormone receptor regulation of PAL-1/Caudal mediates ventral nerve cord assembly in C. elegans.

The paper identifies a regulatory network involving SEX-1 and PAL-1 in C. elegans ventral nerve cord development, showing their roles in motor neuron positioning.

NOTCH1 S2513 is critical for the regulation of NICD levels impacting the segmentation clock in hiPSC-derived PSM cells and somitoids

This study shows that a NOTCH1 mutation affects NICD stability and disrupts segmentation clock function in hiPSC-derived PSM cells and somitoids.

Self-organized mechanochemical instabilities drive the emergence of digit tissue morphogenesis

The paper develops a limb-mesenchymal organoid system and models to show that digit-like structures form through mechanochemical instabilities involving cell adhesion, chemotaxis, and convergent-extension.

Lineage domains and cytoskeletal cables organize a cellular square grid in a crustacean

The paper investigates how square cell grids form in crustacean embryos, showing that lineage-specific and supracellular mechanisms coordinate this process.

Tissue-wide Erk oscillations set the pace of zebrafish notochord segmentation

This study identifies tissue-wide Erk oscillations that time zebrafish notochord segmentation and reveals the mechanism controlling its onset and tunability.

Cytoneme feedback ensures signaling specificity when multiple ligands converge on a common receptor

The paper shows how cytoneme feedback ensures signaling specificity in Drosophila AMPs by segregating ligands into receptor-bound territories.

Spatiotemporal WNT and BMP gradients orchestrate regional enteroendocrine cell diversity along the Drosophila midgut

The paper investigates how WNT and BMP signaling gradients establish and maintain regional diversity of enteroendocrine cells in Drosophila midgut.

Oocyte polarity is established independently of the Balbiani body

The paper shows that oocyte polarity can form without the Balbiani body, using zebrafish mutants where Buc protein and mRNA localization remain normal despite Bb failure.

Ovarian germline stem cell dedifferentiation is cytoneme dependent

This study shows that cytonemes are essential for BMP signaling and germline stem cell maintenance and dedifferentiation in Drosophila ovaries.

Adult caudal fin shape is imprinted in the embryonic fin fold

The paper shows that transient shha overexpression during zebrafish embryogenesis alters adult caudal fin shape, demonstrating that developmental cues can permanently modify positional memory of fin rays.

ETS TRANSCRIPTION FACTOR POINTED CONTROLS GERMLINE SURVIVAL IN DROSOPHILA

This study identifies the ETS transcription factor pointed (pnt) as essential for germline survival in Drosophila, showing its role in regulating PGC proliferation and preventing apoptosis.

Morphogen gradients can convey position and time in growing tissues

The paper proposes a mechanism by which morphogen gradients encode both position and time in growing tissues through dynamic signal patterns.

Wavefunction Patterns the Embryo?

The paper applies a quantum-classical model to explain Bicoid morphogen gradient dynamics and its interpretation by the Hunchback gene in Drosophila embryos.

FGF diffusion is required for directed migration of postembryonic muscle progenitors in C. elegans

The paper shows that FGF diffusion is required for directed migration of C. elegans muscle progenitors, revealing FGF as a diffusible chemoattractant.

Forward Genetics Identifies ptr-18 and Other Genes as Developmental Regulators of the Four-Cell Tail Tip in C. elegans

Local activation of Cxcl12a signaling controls olfactory placode morphogenesis in zebrafish embryos

The paper shows that local activation of Cxcl12a signaling during zebrafish olfactory placode morphogenesis is critical for proper development, with spatial and temporal control influencing the process.

Spen and Nito prevent dedifferentiation of progenitors by translationally repressing E(Spl)mγ

The paper shows that Spen and Nito repress E(Spl)mγ translation in stem cells to prevent progeny dedifferentiation during asymmetric division.

A transcription factor toggle switch determines differentiated epidermal cell identities in Hydra

This study identifies a transcription factor toggle switch between Zic4 and Gata3 that controls epidermal cell identity in Hydra, showing their mutual antagonism determines cell fate.

Unilateral loss of recql4 function in Xenopus laevis tadpoles leads to ipsilateral ablation of the forelimb, hypoplastic Meckel's cartilage and vascular defects.

This study uses unilateral CRISPR knockdown of recql4 in Xenopus laevis to show its role in limb development, Meckel's cartilage formation, and vascular growth.

Pervasive homeobox gene function in the male-specific nervous system of Caenorhabditis elegans

The paper investigates the role of homeobox genes in defining neuronal diversity in the male-specific nervous system of C. elegans, showing their expression patterns and functional importance.

Characterisation of lmx1b paralogues in zebrafish reveals divergent roles in skeletal, kidney, and muscle development

The paper characterizes lmx1b paralogues in zebrafish, revealing distinct roles in skeletal, kidney, and muscle development, and identifies a new role in notochord cell inflation.

Genome-wide association study shows developmental robustness control by intestinal maltase via internal environment in Drosophila

This study identifies Maltase as a key mediator of developmental robustness in Drosophila by modulating glucose availability and insulin signaling.

Differential spreading behaviors of Nodal signalling molecules in the extracellular space cooperatively shape left-right asymmetry

The paper shows how Nodal and Gdf1 spread freely while Dand5 is immobilized, shaping left-right asymmetry in zebrafish embryos.

The Establishment of Cell-Type Specific Gene Regulation in the Sea Urchin Embryo

This study creates a single-cell atlas of gene expression, transcription, and chromatin accessibility in sea urchin embryos, revealing dynamic regulatory elements and lineage-specific gene activation patterns.