Thomas WIDIEZ
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thomaswidiez.bsky.social
Thomas WIDIEZ
@thomaswidiez.bsky.social
🌾Plant biologist, plant reproduction, seeds, pollen, haploid induction, maize🌽. PI at lab @rdplab.bsky.social in ENS de lyon @ensdelyon.bsky.social / research director at @inrae-france.bsky.social
Pinned
🌽 A dream maize seed phenotype—finally real❗

Two KIL TFs trigger lytic cell death in endosperm (EAS) ➡️ boosting embryo growth!

@theplantcell.bsky.social

Huge credit to @moritznowack.bsky.social & N. Doll for leading this work 🙌 Fantastic collaboration 🤝

📖 academic.oup.com/plcell/advan...
Reposted by Thomas WIDIEZ
Congrats to Andrea Calhau from @rdplab.bsky.social for winning the Best Talk Award at "Seed 2025", the 10ᵉ edition of the French Seed Network Conference! 🌱

This year’s colloque, held in Nantes, brought together scientists around the theme Seeds & the agroecological, climatic, and food transitions.
November 16, 2025 at 9:05 PM
Reposted by Thomas WIDIEZ
🌱 Our latest: in Plant Biotech J we study transgenerational #CRISPR editing in #maize🌽 using a split Cas9/gRNA system, highlighting importance of event quality & choice of promoters. 👏 Christian Lorenzo, Dirk Inzé and Hilde Nelissen @fbwugent.bsky.social @psb-vib.bsky.social doi.org/10.1111/pbi....
October 29, 2025 at 3:57 PM
🌽 Maize vs. Fusarium 🌽

Overexpressing a maize lipoxygenase (ZmLOX4) boosts resistance to Fusarium infection.

Glad that our maize Gene editing & transformation platform, at @rdplab.bsky.social, contributed to this research, led by the Lanubile's Lab.

▶️ doi.org/10.1093/jxb/...
October 6, 2025 at 9:51 AM
The cenH3 assembly factor ZmKNL2 boosts haploid induction in maize 🌽

onlinelibrary.wiley.com/doi/10.1111/...
October 6, 2025 at 9:27 AM
Reposted by Thomas WIDIEZ
🌱 3 plant biology institutes, 2 great days! 🌿

PhDs & postdocs from DBMV @unil.bsky.social, @psb-vib.bsky.social & @rdplab.bsky.social rocked the 2nd Trilateral Plant Bio Symposium in Lausanne!

👏 Big congrats to all ECRs, especially to @nathan-german.bsky.social for winning Best Presentation! 🏆💥
September 13, 2025 at 11:10 AM
🚨Breakthrough in haploid induction through microspore 🌾 🌱

@cp-cell.bsky.social

▶️ Reprogramming of microspore fate via BBM-BAR1 for highly efficient in vivo haploid induction

📖 www.cell.com/cell/abstrac...
September 9, 2025 at 11:58 AM
➡️NRT1.1B acts as an ABA receptor in integrating compound environmental cues for plants

@cellcellpress.bsky.social

📖https://doi.org/10.1016/j.cell.2025.07.027
August 12, 2025 at 7:15 PM
Reposted by Thomas WIDIEZ
Our paper showing that variation in transcription factor binding sites underlies the majority of additive genetic variance for phenotypic variation in maize is finally out!

Sadly they didn't use our suggested cover image below (made by the inimitable Andi Kur).

www.nature.com/articles/s41...
August 11, 2025 at 2:29 PM
Reposted by Thomas WIDIEZ
🌽 Le suicide utile de l’albumen : des cellules se détruisent pour laisser grandir l’embryon

Publié dans The Plant Cell, découverte signée N. Doll & @thomaswidiez.bsky.social (UMR RDP), un mécanisme clé pour la croissance et la nutrition des graines ⤵️
urlr.me/QvBTSV

Des pistes pour l’#agriculture 🚜
July 18, 2025 at 8:34 AM
Amazing discovery 🤯 on barrier integrity control in 🌱 👇🏼👇🏼

@nature.com

Congratulations to all👏🏼
July 2, 2025 at 11:19 PM
🌽 A dream maize seed phenotype—finally real❗

Two KIL TFs trigger lytic cell death in endosperm (EAS) ➡️ boosting embryo growth!

@theplantcell.bsky.social

Huge credit to @moritznowack.bsky.social & N. Doll for leading this work 🙌 Fantastic collaboration 🤝

📖 academic.oup.com/plcell/advan...
June 22, 2025 at 3:14 PM
🌱 Latest research from A. Lanubile Lab
▶️ editing the ZmWKRY125 transcription factor enhances maize resistance against Fusarium verticillioides🌽

Glad that our team from @rdplab.bsky.social contributed to this work! 🤝

🔓open access: hal.science/hal-05119616

📖 publisher's link doi.org/10.1007/s002...
June 19, 2025 at 7:01 AM
Reposted by Thomas WIDIEZ
1/7
I am very excited to announce our🌹NEW PAPER OUT IN 𝑁𝐴𝑇𝑈𝑅𝐸!🌹
𝐃𝐑𝐈𝐕𝐄 𝐓𝐎 𝐒𝐔𝐑𝐕𝐈𝐕𝐄: Bimodal centromeres in pentaploid dogroses shed light on their unique meiosis
With the Ritz and Kovařík labs we show a potential role for centromeres on 𝘙𝘰𝘴𝘢 𝘤𝘢𝘯𝘪𝘯𝘢 bizarre reproduction!
www.nature.com/articles/s41...
Bimodal centromeres in pentaploid dogroses shed light on their unique meiosis - Nature
Insights into the dogrose genome and centromeres explain their ability to achieve stable sexual reproduction.
www.nature.com
June 18, 2025 at 3:34 PM
Reposted by Thomas WIDIEZ
🎉 Congratulations to our director Gwyneth Ingram, awarded the 2025 CNRS Silver Medal!

A well-deserved recognition of her outstanding research in plant developmental biology. 🌱

👉 More info: www.cnrs.fr/fr/actualite...

👉 Her profile: www.insb.cnrs.fr/fr/personne/...
June 16, 2025 at 1:45 PM
Reposted by Thomas WIDIEZ
Our lab took part in the Pop’Sciences Festival this year!

We were excited to contribute to making science more accessible and engaging for everyone.

📍 popsciences.universite-lyon.fr/le_festival/

Thanks to @yvonjaillais.bsky.social, C. Igisch, G. Brunoud, J. Abitbol-Spangaro, C. Godin and more...
May 19, 2025 at 2:00 PM
🌱 What a fantastic seminar from @michaelraissig.bsky.social for our @rdplab.bsky.social external seminar.

Full of energy, with some seriously cool cell biology 🔬💚

Exciting research on stomata and Brachypodium!

#PlantScience #CellBiology #Stomata #Brachypodium
May 12, 2025 at 9:26 PM
▶️ A two-step self-pollination mechanism maximizes fertility in Brassicaceae

@cellcellpress.bsky.social

📖 doi.org/10.1016/j.ce...
April 14, 2025 at 10:57 PM
Reposted by Thomas WIDIEZ
A pick for your next journal club? We discovered a gene regulatory network involving RALF12 and ROS leading to PCD of a single cell (synergid) within the ovule. www.nature.com/articles/s41...

The image shows the three cells of a maize egg apparatus (synergids on top and egg cell below).
April 14, 2025 at 7:34 AM
▶️Maternal haploid induction in maize via mutation of Gamete Expression protein 1 (ZmGEX1) 🌱

-->Plant Biotechnology Journal

📖 onlinelibrary.wiley.com/doi/10.1111/...
April 10, 2025 at 10:40 AM
Having babies without DNA from Daddy?! 😵

🌻Yep, possible in sunflowers 🌻

Tim Kelliher's team describes a sunflower parthenogenic doubled haploid (DH) process

@nature.com

▶️Haploid facultative parthenogenesis in sunflower sexual reproduction

📖 www.nature.com/articles/s41...
April 4, 2025 at 12:55 PM
Reposted by Thomas WIDIEZ
Our latest article on biological nitrogen fixation on the aerial roots of sorghum has been published in @plosbiology.org. We thank the @energygov.bsky.social for supporting this exciting project.

journals.plos.org/plosbiology/...
March 4, 2025 at 1:45 PM
🌽 The use of haploid inducer line to edit, by simple crossing, other maize lines 🌽

📖 doi.org/10.1111/pbi....

PlantBiotechJ

👉🏼Harnessing haploid-inducer mediated genome editing for accelerated maize variety development
February 15, 2025 at 11:17 AM
🌱 Egg cell-specific degradation of CENH3 using engineered E3-ligases successfully induce haploids 🌱

⚠️ Preprint from Andreas Houben's lab @leibnizipk.bsky.social

👉🏼 Gametophytic degradation of CENH3 - a synthetic biology approach for haploid induction in plants

📖 doi.org/10.21203/rs....
February 15, 2025 at 10:42 AM