Lightnews — Scholar-powered news

Reposted by Periklis Paganos

RossellaAnnunziata @rossellaannunziata.bsky.social · Jun 26

📣 II Edition of the International Summer School “The Systems Biology Approach to Discover Marine Life: From a Big Eye to a Microscopic Picture”
📍 Stazione Zoologica Anton Dohrn / Darwin-Dohrn Museum, Naples (Italy)
🗓️ 27–30 October 2025
isssb2022.wixsite.com/isssystemsbi...

II Edition of the International Summer School on Systems Biology Applied to the Marine Environment “The Systems Biology Approach to Discover Marine Life: From a Big Eye to a Microscopic Picture”
27-30 October 2025, SZN, Naples
Deadlines:
Early bird: 15 July 2025 (€350)
Late: 31 August 2025 (€400)
Info: ISSSB2022@gmail.com
Topics covered:
Ecosystem Scale Modeling
Omics Workflows
Evolutionary Genomics & Eco-Evo-Devo
Marine Biotechnology & Synthetic Biology
Hands-on sessions + expert talks in a unique marine science hub.

1 2

Periklis Paganos @perievodevo.bsky.social · Jun 6

🤩

Laurent Formery @laurentformery.bsky.social · May 31

Our brittle star patterning study is now out at EvoDevo! 🥳
doi.org/10.1186/s132...

@lowelab.bsky.social

1

Reposted by Periklis Paganos

Tessmar-Raible Labs @tessmarraiblelabs.bsky.social · May 27

Excited to welcome @mariacocurullo.bsky.social to the Tessmar-Raible lab, who secured a prestigious #MSCA Postdoctoral fellowship to explore how monthly timing shapes brain #plasticity in Platynereis dumerilii — and how light pollution at night may disrupt it.

#BrightPlaty #Platynereis #ALAN

A composite image, contrasting the natural moonlight over the sea on the left side with a coastline producing strong artificial light on the right side.

1 11

Reposted by Periklis Paganos

Barone Lab @baronelab.bsky.social · May 28

Job Alert! We are recruiting one postdoc to work on spiralian embryos and their crazy polar lobes. More info about this HFSP-funded position on our website baronelab.org: scroll to the end, click on "this could be you"...start your adventure!

3 47 78

Reposted by Periklis Paganos

Chema Martin @chemamd.bsky.social · May 27

Less than a week left to register and submit an abstract ‼️

Come & join us!

4 10

Reposted by Periklis Paganos

Jeff Thompson @echinerd.bsky.social · May 12

Interested in Developmental biology? Imaging? Marine invertebrate body plans? Then this three year postdoc in my group @sotonbiosciences.bsky.social is for you! Join our team to decypher how signalling molecules shape skeletal phenotype in juvenile sea urchins. jobs.soton.ac.uk/Vacancy.aspx...

1 30 44

Periklis Paganos @perievodevo.bsky.social · May 23

Guys another fantastic opportunity, in a fantastic environment, wonderful PI and with one of the most promising new experimental systems!!Apply NOW!

RossellaAnnunziata @rossellaannunziata.bsky.social · May 23

Do you want to unravel the function of fluorescent cells in marine organisms?
Join the Annunziata lab @szn.it for a PhD project exploring embryonic origins, function and biotechnological potential of fluorescent cell type in sea cucumbers!

To apply: www.szn.it/.../ph-d-pro...

1

Periklis Paganos @perievodevo.bsky.social · May 21

Don’t hesitate!!! Amazing project and team and fantastic mentor!!! Apply NOW!

Arnone Lab @arnonelab.bsky.social · May 21

Do you want to understand how developmental programs are encoded in animal genomes? Join our lab at the @szndohrn.bsky.social for a PhD project to unravel the developmental dynamics in sea urchins during the metamorphosis from larva to juvenile.
Deadline JUNE 14th!
www.szn.it/index.php/it...

1

Periklis Paganos @perievodevo.bsky.social · Mar 28

Forgot to mention that this was another beautiful collaboration with @danivoronov.bsky.social!

Reposted by Periklis Paganos

bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · Mar 28

Single Nucleus Profiling Highlights the All-Brain Echinoderm Nervous System https://www.biorxiv.org/content/10.1101/2025.03.24.644250v1

3 4

Reposted by Periklis Paganos

bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · Mar 28

Molecular evidence for pre-chordate origins of ovarian cell types and neuroendocrine control of reproduction https://www.biorxiv.org/content/10.1101/2025.03.24.644836v1

2 3

Periklis Paganos @perievodevo.bsky.social · Mar 28

It was an incredible team effort and I am grateful to all the co-authors that made this manuscript possible!

4

Periklis Paganos @perievodevo.bsky.social · Mar 28

Our findings suggest that the echinoderm nervous system exhibits an "all-brain" organization, with implications for understanding the evolution of nervous system complexity across metazoans.

1 3

Periklis Paganos @perievodevo.bsky.social · Mar 28

We report high degree of neuronal diversification and photoreceptor signatures throughout the sea urchin body, challenging the traditional view of the echinoderm nervous system.

1 1

Periklis Paganos @perievodevo.bsky.social · Mar 28

Our findings reveal a remarkable conservation of genetic regulatory mechanisms as well as divergence of post-metamorphic cell types and provide new insights into the evolution of nervous system complexity in echinoderms.

1 1

Periklis Paganos @perievodevo.bsky.social · Mar 28

Our study presents a comprehensive cell type atlas of post-metamorphic juveniles of the sea urchin Paracentrotus lividus, utilizing single nucleus transcriptomics in combination with spatial gene expression analysis and high-resolution electron microscopy.

1 1

Periklis Paganos @perievodevo.bsky.social · Mar 28

Also a blast from the past! Another preprint is now available from my first postdoc in the @arnonelab.bsky.social at @szndohrn.bsky.social www.biorxiv.org/content/10.1...

2 8 20

Periklis Paganos @perievodevo.bsky.social · Mar 28

I am grateful to the support provided to me by the Global Consortium for Productive Health as well as to NICHD R00 awarded to Zak.

1

Periklis Paganos @perievodevo.bsky.social · Mar 28

We hope this work will set a new framework for reproductive studies and will be a useful resource for the EvoDevo and oogenesis communities.

1

Periklis Paganos @perievodevo.bsky.social · Mar 28

We found evidence that some of these cell types share striking similarities with their mammalian counterparts. Last, we report an intrinsic nerve net, that surprisingly, expresses neuropeptides associated with the mammalian hypothalamus and pituitary, which may regulate egg production.

1

Periklis Paganos @perievodevo.bsky.social · Mar 28

As non-chordate deuterostomes, echinoderms provide key evolutionary insights into cell, tissue, and organ development. By combining high-resolution microscopy, scRNA-seq, and spatial gene expression analysis, we defined the ovarian cell types, their organization, and assessed their evolution.

1

Periklis Paganos @perievodevo.bsky.social · Mar 28

In this study we explore the evolution of ovarian cell types and their signaling interactions using the sea star Patiria miniata, an experimental system with extreme reproductive capabilities and continuous oocyte production.

1 1

Periklis Paganos @perievodevo.bsky.social · Mar 28

New preprint from my Postdoc in Zak Swartz’s lab at the @mblscience.bsky.social, in collaboration with Carsten Wolff and @. www.biorxiv.org/content/10.1...

2 8 32

Reposted by Periklis Paganos

bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · Dec 1

Deep conservation of cis-regulatory elements and chromatin organization in echinoderms uncover ancestral regulatory features of animal genomes https://www.biorxiv.org/content/10.1101/2024.11.30.626178v1

Despite the growing abundance of sequenced animal genomes, we only have detailed knowledge of regula

www.biorxiv.org

12 20

Reposted by Periklis Paganos

Arnone Lab @arnonelab.bsky.social · Dec 1

Thrilled to share this new work resulting from a great collaboration of my lab with the labs of Ignacio Maeso and Veronica Hinman, started with the dear José Luis Gómez-Skarmeta many years ago. Take a look!
www.biorxiv.org/content/10.1...

Deep conservation of cis-regulatory elements and chromatin organization in echinoderms uncover ancestral regulatory features of animal genomes

Despite the growing abundance of sequenced animal genomes, we only have detailed knowledge of regulatory organization for a handful of lineages, particularly flies and vertebrates. These two groups of...

www.biorxiv.org

1 14 30