Amazing new #runx1 knock-in lineage-tracing tool for the #zebrafish #hematopoieitic community from @mcgraillab.bsky.social, led by talented Preston 🐟🧬✂️ Huge thanks for developing another incredible resource and for the opportunity to help 🩸🧫 Excited to see all the discoveries this tool will enable!

Zebrafish Rock!@zebrafishrock.bsky.social · 4w ago

New transgenic on the block! From the unstoppable coalition of @mcgraillab.bsky.social, Jeffrey Essner, @genetrapper.bsky.social, @scekker.bsky.social & newcomer @espinlab.bsky.social 🐟🧬

New transgenic on the block! From the unstoppable coalition of @mcgraillab.bsky.social, Jeffrey Essner, @genetrapper.bsky.social, @scekker.bsky.social & newcomer @espinlab.bsky.social 🐟🧬

bioRxivpreprint@biorxivpreprint.bsky.social · 4w ago

Tracing developmental and adult hematopoiesis with an endogenous zebrafish runx1-2A-CreERT2 CRISPR knock-in https://www.biorxiv.org/content/10.64898/2026.07.03.736368v1

And check out this complementary study by the lab of @benlai-taiwan.bsky.social on a different interferon and macrophages - fascinating. www.biorxiv.org/content/10.6...

IFN-γ-Dependent Macrophage Reprogramming Coordinates Inflammatory Resolution and Matrix Remodeling in Heart Regeneration

Heart regeneration requires coordinated immune activation, timely inflammatory resolution, and dynamic extracellular matrix (ECM) remodeling in addition to cardiomyocyte (CM) proliferation. However, t...

biorxiv.org

Our new paper on interferon signaling during the response to heart injury is out today. doi.org/10.1242/bio....

Interferon signaling is required for early neutrophil recruitment after zebrafish heart injury

Summary: Interferon-Φ1 signaling is required for early neutrophil recruitment after zebrafish heart injury, revealing a key immune trigger that shapes inflammation and may influence efficient cardiac ...

doi.org

What if an embryo made immune cells before it finished building the tissue they usually come from? In our new preprint, we show that annual killifish embryos specify neutrophils before germ layers are fully resolved. www.biorxiv.org/content/10.6... Huge thanks to my PI, @ohnolog.bsky.social ! 🧵

Early immune cell development precedes gastrulation in annual killifish

During embryogenesis, cell types arise in a predictable order because developmental regulators act sequentially. But how evolutionary changes in morphogenesis reshape the signaling environments that a...

biorxiv.org

JOB ALERT 🚨The Tsai Lab at Washington University in St. Louis is hiring a Research Assistant/Lab Manager to study how tissues build reproducible patterns using #zebrafish genetics, live imaging, and quantitative analysis. To apply, email tonytsai@wustl.edu with contents listed below #ZebrafishJobs

Our Dept of Microbiology & Immunology @Geisel School of Medicine @Dartmouth has an opening for an Assistant Professor. Looking for programs bridging multiple areas in Micro & Immuno. A great place to be! Programs: www.M2P2.org www.dartmouthbiofilm.org Job ad: apply.interfolio.com/187637

This amount would fund the US National Science Foundation for a decade. 🧪

Pentagon seeks $80 billion from Congress for Iran war

The Pentagon has told lawmakers it needs roughly $80 billion, mostly to cover the cost of the war in Iran.

apnews.com

When I head to Washington, I will be the first woman in Congress with a science PhD. That matters. At a time when science is under attack, Congress needs more leaders who understand the value of evidence-based decision-making.

In this Obituary, Francesca Mariani & Mark Lewandoski write about Gail R. Martin, one of developmental biology's most influential conceptual architects, a scientist who reshaped how we think about signalling, pattern formation & genetic analysis in the mouse. doi.org/10.1242/dev....

A 20 year study on 2 NIH diversity programs in Science Advances shows they doubled undergrads' odds of getting a Ph.D. That is, before the funding for those programs and for the study itself was terminated last year: www.statnews.com/2026/06/17/n...

NIH diversity programs doubled undergraduates’ odds of getting a Ph.D., 20-year study finds

A new study found that two diversity-oriented programs supported by the NIH doubled the odds that an undergraduate would earn a Ph.D.

statnews.com

When utilized in literature review, LLMs consistently 1. fail to mention female authors in female-led literatures, 2. insist that men are more influential or more heavily cited when this is contradicted by objective citation counts, and 3. attribute women’s work to hallucinated male scholars.

Animal models continue to be critical to our understanding of complex biological and medical concepts. To learn more about the ethics and safeguards in place for responsible animal research, read this open-access article on the topic: www.nature.com/articles/s41...

NPR@npr.org · 2mo ago

One of the world's leading brain research centers is shifting away from fruit flies and toward a tiny, transparent fish. The goal: to understand how brains control the behavior of an animal or human. n.pr/4vV8dYM

The latest paper from the Espin lab is out! 🍾🎉 www.cell.com/cell-reports...

Synergistic cooperation between progranulin and Jak2/Stat3 signaling determines definitive myeloid cell fate

McCune et al. demonstrate that progranulin enforces myeloid fate by regulating JAK2/STAT3 and uncover functional differences between two embryonically derived macrophage populations. These findings pr...

cell.com

📢 The Ghersi Lab in Montreal is recruiting! They are looking for motivated students & #Postdocs interested in stem cell biology, developmental #hematopoiesis, & #zebrafish genetics. Interested? Get in touch! More details⬇️ www.izfs.org/jobboard/ame... Please share w/ your network! #ZebrafishJobs 🧪

Good morning & happy Friday🌞 Here is your reminder that yes, science is real, whether you think so or not

In time for Pride Month! In a Q&A with @slefkopoulos.bsky.social and @natcellbio.nature.com, I had the privilege of sharing my personal journey as an LGBTQIA+ immigrant from Indonesia to Canada and Germany. #PrideinSTEM (a mini thread) Link to read (pdf): rdcu.be/fnXyK

A scientist can come from anywhere - Nature Cell Biology

This June, we celebrate Pride by discussing with Felix Gunawan, assistant professor at the University of Toronto and co-affiliate group leader at the University of Münster, about his personal and acad...

nature.com

Just a few months to IVBM in Australia! Come down and enjoy great science, food, beaches, wine and company. Time to register now at ivbm2026.com

Amazing PI and lab! Highly recommend!

Joey Ghersi@joeyghersi.bsky.social · 2mo ago

📢 The Ghersi Lab is recruiting! We are looking for motivated students and postdoctoral fellows interested in stem cell biology, developmental hematopoiesis, and zebrafish genetics. Interested? Get in touch or share with your network! l1nq.com/d22fg4o

The IZFS 2026 Board of Directors Election Results are in! Congratulations Filippo Del Bene, Wiebke Herzog, Fumi Kubo, Nicholas S. Foulkes, Rubén Marín Juez, and Zhaoxia Sun! Click here to meet our new leadership: lnkd.in/gR3DCHz6 #IZFSElection #IZFS #zebrafish

Paying peer reviewers works. Expanded Fast & Fair experiment @biologyopen.bsky.social: • 5.5 vs 37.7 working days to decision with reviews • ~3 vs ~9 reviewer invitations per manuscript • no reduction in editor-assessed review quality • similar acceptance rates www.biorxiv.org/content/10.6...

🚨WE ARE HIRING🚨 Interested in regeneration? cardiac development? just like doing zebrafish research? Join us in beautiful Montreal! Check here if interested www.izfs.org/jobboard/ame... @zebrafishrock.bsky.social @isrbio.bsky.social @izfs.bsky.social

Excited to share the published version of MIC-Drop-seq @natcomms.nature.com! Shoutout to co-lead authors @claycarey.bsky.social @sparvez.bsky.social for driving this work. Excited to see where this new scale of single-cell perturbation screening goes next. www.nature.com/articles/s41...

James Gagnon@james-gagnon.bsky.social · last yr.

To dissect the gene regulatory networks used to build organisms, we need Perturb-seq-like tools that work in whole animals. For this purpose, we developed MIC-Drop-seq, a tool that couples high-throughput CRISPR in zebrafish embryos with single-cell RNAseq. www.biorxiv.org/content/10.1...

🚨The Kasper lab is hiring! Funded positions for a postdoc and research assistant.🚨 We study regulatory mechanisms regulating vascular and hematopoietic development using zebrafish 🐟. For postdocs, contact me dionna.m.kasper@dartmouth.edu. For RAs, apply here: searchjobs.dartmouth.edu/postings/85822

A trio of #Postdoc job openings in the #WeinsteinLab at NIH 🐟🔬 Epigenetics of development: zfin.atlassian.net/wiki/spaces/... Vascular-associated tissues & organs: zfin.atlassian.net/wiki/spaces/... Angiogenesis & Lymphangiogenesis: zfin.atlassian.net/wiki/spaces/... h/t @zfinmod.bsky.social 🧪

I am thrilled to share our paper introducing RBPscan, a novel approach to profile RNA–protein interactions in living cells. Free access link at the end ⬇️ 🧵 1/ www.cell.com/molecular-ce...

RBPscan: A quantitative in vivo tool for profiling RNA-binding protein interactions

Kretov et al. introduce RBPscan, an RNA-editing-based platform that measures how RNA-binding proteins engage their targets in living cells. This approach quantifies the binding strength of protein-RNA...

cell.com

My grad student, who got RWR and appealed, got an email from GRFP program today that said "Your application was screened by NSF program officers with expertise in your proposed field of study and was determined to be ineligible according to the solicitation requirements." No details were given. 😡

Karolina Heyduk@kheyduk.bsky.social · 6mo ago

Reposting again because according to Reddit threads, another round of RWR emails went out today.

NSF GRFP applicants (and mentors): Was your application Returned Without Review and deemed ineligible despite fitting in the allowed topics? 1) Write NSF 2) Write your Congressperson 3) CC us at grfp@grant-witness.us so we can compile + follow up Details and template at grant-witness.us/grfp-letter

Thank you to everyone who participated in the 2025 Boston Area Zebrafish Researchers Meeting! You all made this a fantastic meeting!

Developmental biology research leads to fundamental discoveries for biomedical research. Cell Reprogramming. Gurdon 1962. PMID: 13951335. Oocyte image by Brandy Walker and Amaya Moss. Tadpole line drawing from @xenbase.bsky.social @socdevbio.bsky.social 1/12