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María Mariner

@mariamafau.bsky.social
354 followers 728 following 30 posts

Postdoctoral researcher at @radaiglesiaslab.bsky.social | Developmental genomics | preLighter (The Company of Biologists) | Artistic & Creative | Passionate about visual storytelling and design

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María Mariner @mariamafau.bsky.social · 09/06/2026
There are so many fun ways to approach research dissemination! Tried the @prelights.bsky.social spotLight video format to share our latest published work on how ZIC2 shapes early neural development! Total YouTuber vibes: and I kinda' loved it, tbh. 🤳🔬👇 youtu.be/V_yMoWMkZCM
youtu.be
spotLights Ep 21: María on how ZIC2 shapes neural development #neuroscience #science #biology
YouTube video by The Company of Biologists
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James Briscoe @jamesbriscoe.bsky.social · 08/06/2026
Our latest: Minimal essential requirements for neural tube self-organisation How does a single cell give rise to a tissue with the right cell types in the right proportions? We deconstruct and rebuild a self-organising tissue from first principles A thread🧵 www.biorxiv.org/content/10.6...
biorxiv.org
Minimal essential requirements for neural tube self-organisation
The reliable generation of diverse cell types in precise proportions is essential for the formation of functional tissues during embryonic development. Three-dimensional organoid models derived from p...
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Tjian + Darzacq Lab, UC Berkeley @tjiandarzacq.bsky.social · 02/06/2026
Out now in Science! Our study challenges long-standing assumptions about transcription factor specificity in eukaryotes. Novel single-molecule measurements of TF behavior in living cells reveal an independence of locus-specific binding from DNA sequence recognition.🧵 www.science.org/doi/10.1126/...
science.org
Unstructured transcription factor interactions enable emergent specificity
How intrinsically disordered regions (IDRs) shape chromatin binding and nuclear organization of transcription factors (TFs) remains unclear. We used proximity-assisted photoactivation (PAPA), a single...
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María Mariner @mariamafau.bsky.social · 31/05/2026
In full agreement with this Career Feature article by @keepitonthehdl.bsky.social for @nature.com: www.nature.com/articles/d41... Turia came into our lives right on time, and she brought light, fun, and so many wonderful hikes! 🐕🏔️💙@sanchezgaya.bsky.social
Close-up photo of a happy black and white dog named Turia smiling against a scenic coastal backdrop.A smiling couple with a dog named Turia, standing together on a cliffside overlooking an ocean view.
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María Mariner @mariamafau.bsky.social · 19/05/2026
🚨Happy to share a new PreLight covering the latest #preprint by the Meissner lab (@molgen.mpg.de) on acute SUZ12 degradation during TLS formation. A work brilliantly executed by @dannimklee.bsky.social et al. Get to know more about him and his work here ⤵️ prelights.biologists.com/highlights/t...
prelights.biologists.com
Temporal degradation of PRC2 uncovers specific developmental dependencies - preLights
Pairing acute SUZ12 degradation + simplified embryoids, Ming-Kang Lee et al. pinpoint time-dependent sensitivities to PRC2 loss. A meticulous experimental approach applicable to the functional stage-s...
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Irene Vallejo @irenevalmore.bsky.social · 13/03/2026
Orgullo de empollona, por Delia Rodríguez elpais.com/opinion/2026... @elpais.com
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Max Planck Institute for Molecular Genetics @molgen.mpg.de · 05/03/2026
Ahead of International Women’s Day on March 8, we’re sharing the female scientific role models who inspire our colleagues—one per day. Today Postdoc Irene Talon from the Vallier Lab. #InternationalWomensDay #IWD2026 #WomenInScience
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Ada García @phosphagu.bsky.social · 28/02/2026
el apoyo a las familias afectadas y el impulso a la investigación científica que permita mejorar el diagnóstico, el tratamiento y la calidad de vida de quienes conviven con estas patologías. #diamundialenfermedadesraras #rarediseasesday
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María Mariner @mariamafau.bsky.social · 27/02/2026
"Prueba a alegrarte por los éxitos de los demás" + " necesitamos más generosidad intelectual" ...así se termina mucho mejor un viernes de revisiones. Gracias!
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Craig Kaplan @triggerloop.bsky.social · 16/02/2026
This is a fascinating paper that reveals defined and clear mechanism for a phenomenon that for some seemed unbelievable- the up regulation of genes paralogous to those with specific types of inactivating mutations. This is called transcriptional adaptation 1/ www.science.org/doi/10.1126/...
science.org
Mechanisms linking cytoplasmic decay of translation-defective mRNA to transcriptional adaptation
Transcriptional adaptation (TA) is a genetic robustness mechanism through which mutant messenger RNA (mRNA) decay induces sequence-dependent up-regulation of so-called adapting genes. How cytoplasmica...
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MwahahahahahadScientist @mads100tist.bsky.social · 11/02/2026
This graph basically shows that the MSCA are, as of now, useless unless the EU governance does something about it 🧪
A graph titled "MSCA Postdoctoral Fellowships: section EF-LIF". The graph shows the scores between 70 and 100 over the years 2022, 2023, 2024 and 2025. The years 22, 23 and 24 show a relatively flat normal distribution that peaks at around 90ish and drops at both ends, more dramatically at 95+. The year 25, however, is very different: significant drop at the ends with a dramatic increase at ~95 (going from around 25 to 60ish %)
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Lena Kutscher @lenakutscher.bsky.social · 10/02/2026
Excited to share our preprint on our new multi-omic atlas of human hindbrain development. Led by postdoc Piyush Joshi, in collaboration with @kaessmannlab.bsky.social and Pfister labs, our atlas represents the first comprehensive view of human hindbrain development. www.biorxiv.org/content/10.6...
Brain with puzzle overlay to show that our study provides missing pieces of the puzzle of human brain development by delivering the most comprehensive picture of hindbrain development to date. We have strived to go beyond just another multi-omics atlas to gain deep insights by:
1. Meticulously annotating cell clusters
2. Extracting regulatory programs in terms of coordinated gene sets and accessible regulatory elements
3. Using deep learning to identify regulatory syntax
4. Resolving context-specific TF activity
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Surfin' NuRD @surfinnurd.bsky.social · 04/02/2026
Final version of our paper now published. elifesciences.org/articles/109... Take homes: CHD4/NuRD directly limits transcription factor residence times. At active enhancers this keeps them working efficiently. At inactive enhancers it prevents TFs from getting a foothold and causing activation. 1/n
elifesciences.org
The chromatin remodeller CHD4 regulates transcription factor binding to both prevent activation of silent enhancers and maintain active regulatory elements
CHD4 directly limits transcription factor binding to chromatin, which prevents activation of silent or cryptic enhancers but facilitates activity of active enhancers.
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Hannah Long @hannahlong.bsky.social · 28/01/2026
📣 I'm excited to share our latest preprint! We adapt and characterise a neurosphere-based CNCC differentiation protocol, and demonstrate utility for quantitative phenotyping and craniofacial disease modelling! 🧫 Read about Array-CNCC here: www.biorxiv.org/content/10.6... @uoe-igc.bsky.social
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Instituto de Biomedicina de Valencia (IBV), CSIC @ibv-csic.bsky.social · 28/01/2026
Bioinformatician Position Open at the Evolutionary and Functional Genomics Lab @ibb-botanic.bsky.social and Nuria Flames' group @ibv-csic.bsky.social If you are interested, please send a CV and a short motivation letter to nflames@ibv.csic.es with the subject “Bioinfo position 2026” before 27/02/26
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María Mariner @mariamafau.bsky.social · 22/01/2026
Tremendo fichaje! 🙌🥇
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Duncan Sproul @sproullab.bsky.social · 19/12/2025
Applications for our international #PhD program open until 11th Jan. Come work with us @uoe-igc.bsky.social and @hannahlong.bsky.social to understand DNMT3B in ICF syndrome or with our wonderful colleagues. Details here: institute-genetics-cancer.ed.ac.uk/igc-graduate... #epigenetics Please repost 🙏
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María Mariner @mariamafau.bsky.social · 14/12/2025
Mi top 1 de #ESDLB 2025. Qué (casi) 3h de disfrute! Bioética y "Ser Científico" pasando por xenotransplantes, OMGs y (mi parte fav) Labradores simpáticos 🦮 y Síndrome de Williams! @lluismontoliu.bsky.social en youtu.be/uZGrvNpMCGM?...
youtu.be
La Modificación Genética en Personas, Animales y Plantas | Lluis Montoliu #ESDLB Cap.605
YouTube video by El Sentido De La Birra con Ricardo Moya
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 12/12/2025
Probably the ugliest animal I've been requested to illustrate so far... and so beautiful at the same time :) So much fun to draw! #bats #sciart #art
Line sketches of Centurio senex
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FragileNucleosome @fnucleosome.bsky.social · 11/12/2025
🧬🎉Join us on Dec 17th for our last session of 2025! 🎉🧬Two fantastic talks on transcriptional regulation: 🔬JB Lalanne on developmental enhancers (and starting a lab in 2025?) 🔬 @rberrens.bsky.social on transposable elements in development 📋Register here: us06web.zoom.us/webinar/regi...
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Nature @nature.com · 04/12/2025
A stem-cell-based monkey embryo model that self-organizes into a comprehensive body plan could lead the way to more-sophisticated models of early human development go.nature.com/48yxsG6
go.nature.com
Primate embryo model leaps across developmental boundaries
A stem-cell-based monkey embryo model that self-organizes into a comprehensive body plan could lead the way to more-sophisticated models of early human development.
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Max Planck Institute for Molecular Genetics @molgen.mpg.de · 27/11/2025
Want to analyze the role of endogenous retroviruses in early human development or investigate their regulation in pluripotency and early development for your PhD? Join the lab of @fueyoraquel.bsky.social via the IMPRS-BAC #gradschool! 👉 www.molgen.mpg.de/5094682/Fuey...
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FragileNucleosome @fnucleosome.bsky.social · 26/11/2025
🔔Join us next Wednesday for #FragileNucleosome! 2 fantastic talks on chromatin regulation:🔬 @mariamafau.bsky.social on ZIC2's dual role in neural induction 🔬 @jhenninger.bsky.social on how RNA-binding proteins drive transcription 📋Register here for the entire series: us06web.zoom.us/webinar/regi...
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FragileNucleosome @fnucleosome.bsky.social · 24/11/2025
Do you have an exciting new chromatin/transcription story that you'd like to share with the #FN community? Fill out this form to be considered for a talk in our Jan-June 2026 schedule! forms.gle/TBi38UgYxPAB... Please repost and share!
forms.gle
Application to speak in the Fragile Nucleosome series
Thank you for your interest in our seminar series! We use a variety of different session formats but, in general, trainees can plan for a ~15 min talk + 5min Q/A and PIs can plan for a ~25min talk +...
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Alex Stark @alex-stark.bsky.social · 18/11/2025
Major new direction in the lab: hacking human cell biology with pathogen effectors (eORFs) - amazing collaboration with @miketilapia.bsky.social lab. Huge congrats to first authors Tomas & He & all co-authors! Check out the pre-print on @biorxivpreprint.bsky.social www.biorxiv.org/content/10.1...
biorxiv.org
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Max Planck Institute for Molecular Genetics @molgen.mpg.de · 18/11/2025
IMPRS-BAC #gradschool: Our new groupleader @sedonamurphy.bsky.social has an open PhD project in her lab. Topic: Spatial feedback between epigenetic regulation and chromatin regulation. Apply by Jan 7, 2026! 👉 www.molgen.mpg.de/5091778/Murp...
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FragileNucleosome @fnucleosome.bsky.social · 18/11/2025
🔔This Wednesday , in #FragileNucleosome seminar, we are excited to host @ishtiaqueh.bsky.social of Pastor lab and Prof. Sarah Teichmann, @teichlab.bsky.social, to tell us about their exciting studies! 🗓️Register here for upcoming session and the entire series: us06web.zoom.us/webinar/regi...
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María Mariner @mariamafau.bsky.social · 15/11/2025
🚨Reposts appreciated‼️If I had read this PhD offer five years ago, I wouldn’t have hesitated for a second to apply 😉 Passionate about gene regulation, chromatin, and developmental biology? Just contact @radaiglesiaslab.bsky.social at @ibbtec.bsky.social 🧬✨ #PhD #3DGenome
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María Mariner @mariamafau.bsky.social · 13/11/2025
Expanding fast! Best wishes to the Delas Lab! (and gorgeous color palette 😜💙)
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Rada-Iglesias Lab @radaiglesiaslab.bsky.social · 06/11/2025
OFERTA DE EMPLEO (por favor difundir): Ofrecemos un contrato predoctoral de 4 años asociado a nuestro proyecto PID2024-157249OB-I00. El objetivo del proyecto es evaluar un nuevo mecanismo patológico según el cual la competición entre promotores puede llegar a ocasionar enfermedades congénitas 👇
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Max Planck Institute for Molecular Genetics @molgen.mpg.de · 26/09/2025
2nd Meeting on Early Embryogenesis and Epigenetics 16 - 18 Feb 2026 at MPI for Molecular Genetics, Berlin with support by the Weizmann Institute for Science. Early bird registration until 30 Sep - register now👇 www.molgen.mpg.de/embryo2026
Save-the-date information:
New approaches to Early embryogenesis & epigenetics
February 16 - 18 2026
Max Planck Institute for Molecular Genetics, Berlin, Germany
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Pedro Rocha @pedroprocha.bsky.social · 08/09/2025
🚨🚨🚨 Please repost We are looking for postdocs to join our lab at NIH. Apply: www.nichd.nih.gov/research/atNICHD/Investigators/rocha/apply Learn more about training at NIH : www.training.nih.gov/research-tra...
Job add showing the lab logo and the following text: 
WHAT WE OFFER
Fully-funded fellowships up to five years  Opportunity to start your own research program or lead ongoing projects.
Large, diverse and extraordinary scientific network at the NIH/Bethesda campus. 

Working at NIH offers the possibility of living in a diverse, liberal and vibrant city: Washington DC
Or in a calm residential area with great schools and good affordable housing: Bethesda and Rockville.
 
WHO YOU ARE
You share our enthusiasm for epigenetics, gene regulation, nuclear organization and mouse development. You have PhD-experience in one or more of the following: mouse development, mouse genetics, epigenetics, or computational biology.
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Society for Developmental Biology @socdevbio.bsky.social · 02/09/2025
Axolotl (Ambystoma mexicanum)🦎 can regrow limbs, tail, spinal cord, heart, and even parts of its brain. Axolotls are champions of regeneration and also shed light on limb patterning, wound healing, and developmental plasticity. Image from Prayag Murawala #ModelMonday #DevBio
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María Mariner @mariamafau.bsky.social · 02/09/2025
Honoured to be part of this awesome lineup 😍! @fnucleosome.bsky.social thanks for the opportunity! A very exciting Fall Season is about to start, I wouldn't miss it 😌🧬
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Karin Prummel @kprummel.bsky.social · 01/09/2025
We are searching for a research technician in our group at EMBL Heidelberg! 🧫🧬🔬 For more details, see the ad. Please reach out in case of any questions. The position is ideally filled by October 1. embl.wd103.myworkdayjobs.com/en-US/EMBL/j...
embl.wd103.myworkdayjobs.com
Research Technician
We are looking for a highly motivated research technician to join the Zaugg group at EMBL Heidelberg, an interdisciplinary team of experimental and computational scientists. Our research combines larg...
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Rada-Iglesias Lab @radaiglesiaslab.bsky.social · 13/08/2025
#Preprint alert! 📣 We are thrilled to share the work led by Lara Zorro-Shahidian and Lucio di Filippo, in which we show that #MLL2 controls gene expression in both #ESC and upon #differentiation by facilitating the #enhancer like activity of #LINE1 elements www.biorxiv.org/cgi/content/...
biorxiv.org
MLL2 facilitates long-range gene regulation through LINE1 elements
Transcriptional regulation is tightly linked to chromatin organization, with H3K4me3 commonly marking both active and bivalent promoters. In embryonic stem cells (ESC), MLL2 is essential for H3K4me3 d...
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María Mariner @mariamafau.bsky.social · 11/08/2025
🗒️‼️Do not miss this exciting new #preprint from the @radaiglesiaslab.bsky.social, led by @eharo84.bsky.social: a master of building synergy ⏫- both in #enhancer research and at the lab! #DarkGenome #Transcription #GeneRegulation #Development #Genomics
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Centro Andaluz de Biología del Desarrollo @cabd-upo-csic.bsky.social · 24/07/2025
#JobOffer #cienciajobs Postdoctoral position at the #CABD working with the amazing and dynamic team of @crisprscan.bsky.social ✂️🧬🐟 📍Sevilla, Spain Apply or share @sebioldev.bsky.social @segenetica.bsky.social @sebbm.bsky.social
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María Mariner @mariamafau.bsky.social · 24/07/2025
Thanks also to Judith Zaugg (Sara Lobato and @kprummel.bsky.social) and Kyung-Min Noh ( @mattetrovato.bsky.social)‬ labs at @embl.org Heidelberg for hosting me during an awesome internship which brought some of the most exciting data!
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María Mariner @mariamafau.bsky.social · 24/07/2025
📕Read the full preprint here: www.biorxiv.org/content/10.1... Special thanks to my great PI and to the @radaiglesiaslab.bsky.social members at IBBTEC, specially to @sanchezgaya.bsky.social, whose work on the bioinformatics part of the project has been truly instrumental 💻📊📉⚡
biorxiv.org
Dual role of ZIC2 during neural induction: from pioneer transcription factor to enhancer activator
ZIC2, a member of the Zinc Finger of the Cerebellum family of transcription factors (TFs), plays crucial roles during neural development. In humans, defects in ZIC2 cause holoprosencephaly, a congenit...
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María Mariner @mariamafau.bsky.social · 24/07/2025
By combining the ZIC2 degron, scMultiome and additional genomic data we stringently defined the ZIC2-dependent Gene Regulatory Network (GRN) during neural induction. We showed that the genes part of this GRN are particularly sensitive to ZIC2 dosage and, thus, might be implicated in HPE etiology.
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María Mariner @mariamafau.bsky.social · 24/07/2025
ZIC2 acts as a temporal switchboard: 🧬It pioneers enhancers by opening chromatin 🔛Then activates them at just the right time All to shape an anterior dorsal neural identity 🧠!
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María Mariner @mariamafau.bsky.social · 24/07/2025
🤨Are we sure? What happens without ZIC2? Brain patterning genes don’t turn on properly ➡️WNT signaling drops ➡️Neural progenitors skew toward more ventral fates ➡️Some even begin differentiating into neurons too early
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María Mariner @mariamafau.bsky.social · 24/07/2025
🎭Act II: The Activator Later, at day 5-6 (neural induction), ZIC2 flips the switch: It activates a proportion of the enhancers it primed earlier. This triggers expression of dorsal and midbrain fate genes, giving neural progenitors their regional identity. 🧠
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María Mariner @mariamafau.bsky.social · 24/07/2025
ZIC2 doesn’t act randomly — it targets enhancers linked to patterning genes like: ➡️En1, Lmx1a/b, Pax2: playing crucial roles in midbrain and roof plate development. ➡️Wnt1, Wnt3a: core components of the WNT signaling pathway.
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María Mariner @mariamafau.bsky.social · 24/07/2025
🎭 Act I: The Pioneer At day 3 of differentiation (primed pluripotency), ZIC2 binds previously closed chromatin regions. It opens them up — broadly “priming” putative regulatory elements, some linked to key neurodevelopmental genes. 📖A textbook case of pioneer transcription factor behavior.
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María Mariner @mariamafau.bsky.social · 24/07/2025
But things change as mESC begin to differentiate into neural progenitors. 📉ZIC3 levels go down, and ZIC2 takes over📈 Now is when ZIC2’s real job begins — and it’s a two-act performance ✌️
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María Mariner @mariamafau.bsky.social · 24/07/2025
The answer: ZIC3 steps in 💥 It is the most highly expressed ZIC family member in mESCs, and it adopts the starring role. When we delete Zic3, pluripotency falls apart. 🧫 ZIC3 = the real main character (at this stage).
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María Mariner @mariamafau.bsky.social · 24/07/2025
🔎This story starts with a mystery: ZIC2 binds thousands of enhancers and promoters in pluripotent stem cells… but when we knock it out, nothing happens. 🤷‍♀️ Cells look fine, gene expression is stable — no chaos. 🤯Why⁉️
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María Mariner @mariamafau.bsky.social · 24/07/2025
To tackle this, we combined: 🧬CRISPR-Cas9 genome editing — to generate Zic2⁻/⁻, Zic2⁺/⁻, Zic2-FLAG-HA, and ZIC2-degron mESC lines. 📊Bulk (RNA-seq, ATAC-seq, ChIP-seq) and single-cell (Multiome RNA + ATAC) profiling — at key stages of neural differentiation. Now, let the plot unfold...
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