@raphmercier.bsky.social
📤 1441
📥 280
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#Meiosis4ever
.
#ChromosomeBiology
. Max Planck for Plant Breeding Research.
pinned post!
Reposting an old meme. My greatest contribution to the field
#meiosis4ever
#meiosis4eva
12 months ago
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www.nature.com/articles/s42...
Latest from the lab. The conclusion is in the title! Basically, we found that the KMN complex (outer kinetochore) is fully conserved between plants and fungi/animals, showing deep origin. (reminder, you are closer to a mushroom than a mushroom is to a plant.)
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The composition and structure of the outer kinetochore KMN complex is conserved across kingdoms - Communications Biology
Affinity purification in Arabidopsis identified all key subunits of the outer kinetochore KMN complex. Functional analyses revealed a striking conservation of its composition and organization across k...
https://www.nature.com/articles/s42003-025-09120-6
4 days ago
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reposted by
François Parcy
18 days ago
On mange des OGM tous les jours depuis plusieurs décennies (les plantes obtenues par mutagénèse chimique ou radiative) et ça ne pose aucun problème
add a skeleton here at some point
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reposted by
PHD Comics
19 days ago
The Author List
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Only those who know🐖🎮
21 days ago
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reposted by
Needhi Bhalla 💅🏽
29 days ago
“The scientific Nobels announced this week underscore that point. All three awards — granted each year in physiology or medicine, physics and chemistry — honored achievements rooted in fundamental research…Decades of inquiry paved the way for the technology, treatments and toys of tomorrow.” 🎁
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Nobel Prizes This Year Offer Three Cheers for Slow Science
https://www.nytimes.com/2025/10/09/science/nobel-prizes-science-basic-research.html?unlocked_article_code=1.tE8.L6ym.2m62g-uiMtJz&smid=url-share
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reposted by
Oded Rechavi
about 1 month ago
Thanking the reviewers
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reposted by
Chloe Girard, PhD
about 1 month ago
This is the work of a tremendous PhD student, Benoit Madec, who did everything in this study (genetics, molecular biology, all the bioinformatics analyses) He defended his PhD on Monday and is now Dr Madec! I am very proud of him and all the work he has accomplished!
add a skeleton here at some point
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reposted by
Chloe Girard, PhD
about 1 month ago
🚨 First pre-print from my team !! TL;DR: presence of polymorphism (sequence differences between the homologous chromosomes) can *increase* the local rate of recombination in Arabidopsis thaliana, turning cold regions of the genome hot (purple v. grey) !
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reposted by
PHD Comics
about 2 months ago
Writing: just add coffee **Hey, my new book comes out on Tuesday! 👉
amazon.com/gp/aw/d/1419764063
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reposted by
Maddy Seale
about 2 months ago
Out First Release in
@science.org
this week: A large scale analysis of the epigenetics of transposable elements in Arabidopsis shows transgenerational stability
www.science.org/doi/10.1126/...
#PlantScience
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Transposable elements are vectors of recurrent transgenerational epigenetic inheritance
DNA methylation loss at transposable elements (TEs) can affect neighboring genes and be epigenetically inherited in plants, yet the determinants and significance of this additional system of inheritan...
https://www.science.org/doi/10.1126/science.ady3475
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reposted by
2 months ago
I feel incredibly privileged to share this study on Fanconi anaemia, based on a small but important cohort. This work describes the genetics and clinical outcomes of patients in Australia and New Zealand with a diagnosis of FA.
www.sciencedirect.com/science/arti...
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Clinical and genetic spectrum of Fanconi anemia in Australia and New Zealand
Fanconi anemia (FA) is a rare genetic condition that predisposes to progressive bone marrow failure, a specific spectrum of malignancies, including he…
https://www.sciencedirect.com/science/article/pii/S2949774425014864?fbclid=IwY2xjawMvJF9leHRuA2FlbQIxMQABHnbGK_ZHEfxkd_z671qK_0EPwW7WoIloKJZMbUCHrmo4GkIjbTRb8bL88qOd_aem_BGSWAoZiEN00u9cCVtb3Mw
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reposted by
Zwicker Group
2 months ago
This is a great opportunity to start an independent group in one of the best research environments you could think of!
add a skeleton here at some point
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reposted by
Max-Planck-Gesellschaft
2 months ago
Springboard for an international scientific career! 🧬🧪🔭⚛️🧠🌱 Call for
#MaxPlanckResearchGroups
launched; applications are possible until October 14, 2025
www.mpg.de/max-planck-r...
#ScienceCareer
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www.nature.com/articles/d41...
Interesting journalist piece on apomixix. With pieces of MiMe inside :-)
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Is this the future of food? 'Sexless' seeds that could transform farming
Scientists are tinkering with plant genes to create crops that seed their own clones, with a host of benefits for farmers.
https://www.nature.com/articles/d41586-025-02753-x
2 months ago
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reposted by
Schnittger Lab
3 months ago
Six more years—plus a lot of blood, sweat, and tears—later, we are thrilled to finally share it: a cytological framework of female meiosis in Arabidopsis!
www.biorxiv.org/content/10.1...
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A cytological framework of female meiosis in Arabidopsis
Female and male meiosis often differ in many aspects, such as their duration and the frequency as well as the positioning of crossovers. However, studying female meiosis is often very challenging and ...
https://www.biorxiv.org/content/10.1101/2025.08.22.671760v1
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Preprint Alert! 🚨🧬 Not one, but two preprints! Meiotic orientation of kinetochore at meiosis is inforced by...[see below]
www.biorxiv.org/content/10.1...
and Unlocking meiotic crossovers next to plant centromere
www.biorxiv.org/content/10.1...
#meiosis4ever
#everythingisconnected
a thread👇
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Monopolar orientation of kinetochores at meiosis is enforced by COHESINS and their regulators, CENP-C, and the deSUMOylase SPF2
The first division of meiosis is unique in its capacity to halve the ploidy of the future gametes. To this end, one key innovation compared to mitosis is the monopolar orientation of the pairs of sist...
https://www.biorxiv.org/content/10.1101/2025.08.19.671082v1
3 months ago
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reposted by
Molecular Biology and Evolution
3 months ago
@alisondawnscott.bsky.social
et al. use genome data from >400 Arabidopsis lyrata sampled across Eurasia to show it as the most polyploid-rich species complex in Arabidopsis, with multiple origins of autotetraploidy. 🔗
doi.org/10.1093/molbev/msaf153
#evobio
#molbio
#PlantSky
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Multiple Autopolyploid Arabidopsis lyrata Populations Stabilized by Long-Range Adaptive Introgression Across Eurasia
Abstract. Abundance of established polyploid lineages varies across lineages, evolutionary time, and geography, suggesting both genetics and environment pl
https://doi.org/10.1093/molbev/msaf153
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reposted by
Nick Desnoyer
3 months ago
Introducing the 1,000 Flower Collection 🧬🌹 I’m creating 1,000 genetically designed flowers each crafted with new colors, patterns, and shapes. Here’s how I’m making it happen… and how you can join me on this journey 🧵(1/7)
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reposted by
Thomas Lenormand
4 months ago
Interested to know more about a new theory relating the
#evolution
of
#sexchromosomes
to the rules of
#speciation
? Check out this paper that we published with Denis Roze in the last issue of
#Science
. PDF here:
www.science.org/stoken/autho...
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A single theory for the evolution of sex chromosomes and the two rules of speciation
Sex chromosomes are involved in three major empirical patterns: (i) Y (or W) chromosomes are often nonrecombining and degenerate; (ii) heterogametic offspring (XY or ZW) from interspecific crosses are...
https://www.science.org/doi/10.1126/science.ado9032
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reposted by
Valérie Borde
3 months ago
www.biorxiv.org/content/10.1...
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RPA directly stimulates Mer3/HFM1 helicase processivity to ensure normal crossover formation in meiosis
Meiotic crossover formation is critical for generating viable gametes and enhancing genetic diversity. The helicase Mer3 (HFM1 in humans) is a highly conserved factor essential for promoting crossover...
https://www.biorxiv.org/content/10.1101/2025.08.02.668043v1
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reposted by
The Atlantic
3 months ago
Scientists have spent decades puzzling over potatoes’ origin story. The answer was juicier than anyone expected,
@katherinejwu.com
reports.
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Potatoes Evolved From … Tomatoes?
Dipping fries into ketchup just got a little more mind-bending.
https://bit.ly/3IRr8R5
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reposted by
Max-Planck-Gesellschaft
3 months ago
Director at Max Planck - a unique position! The Open Call for Expressions of Interest in Max Planck Directorships is open now and can be submitted by the 31st of October 2025. ➡️
mpg.de/directors
- Please share the Open Call among potential candidates.
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reposted by
Oded Rechavi
4 months ago
When the professor edits the student's draft
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reposted by
Oded Rechavi
4 months ago
It's not procrastination i'm thinking
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reposted by
Alice Vayssières
4 months ago
Cette année, les Journées Scientifiques et Techniques (JST2025) du Réseau des Microscopistes INRAE (RµI) sont à Versailles!!! C'est du 5 au 7 novembre 2025 et les inscriptions sont ouvertes !!! 🔬👑✨
@ijpb-versaillescly.bsky.social
👇👇👇
rmui-2025.journees.inrae.fr
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reposted by
Jane Langdale 🌱 🌾
4 months ago
For all plant developmental biologists out there - has been orange flowered for 20 years. Will be tracking the pink branch from now on!
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#TodayOnMyBike
4 months ago
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#TodayOnMyBike
4 months ago
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reposted by
Adrián Gonzalo
4 months ago
Check out the Views & News piece that Joiselle Fernandes and I wrote for
@nature.com
on the recent work from
@amarques.bsky.social
and colleagues about one of the most bizarre ways to do meiosis
rdcu.be/euabu
. Explained for non-experts!
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reposted by
André Marques
4 months ago
I am super happy to see our dog rose's paper featuring the cover of the July 3rd issue of
@nature.com
read more here:
tinyurl.com/dog-rose
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reposted by
Nature
5 months ago
Nature research paper: Bimodal centromeres in pentaploid dogroses shed light on their unique meiosis
https://go.nature.com/407PRGm
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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.
https://go.nature.com/4jVqZIU
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reposted by
André Marques
5 months ago
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...
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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.
https://www.nature.com/articles/s41586-025-09171-z
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reposted by
Max Planck Institute for Plant Breeding Research
5 months ago
🎉 We’re thrilled to share that our director Miltos Tsiantis has been awarded an ERC Advanced Grant
@erc.europa.eu
for his project CLONAL, which will explore the development and diversity of root suckers. Congratulations! 🌱👏Learn more:
bit.ly/43KuvBe
#ERCAdG
#plantsci
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#TodayOnMyBike
5 months ago
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Paper alert!
#Meiosis4Ever
Maximizing meiotic crossover rates reveals the map of Crossover Potential Juli Jing, Qiachao Lian and Stephanie Durand
www.nature.com/articles/s41...
We pushed meiotic crossover as much has we could, and had some surprises A thread 👇
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Maximizing meiotic crossover rates reveals the map of Crossover Potential - Nature Communications
Meiotic crossovers enhance genetic diversity in sexually reproducing organisms. Here, the authors propose that the higher-order spatial organization of the meiotic chromosomes shapes sexual dimorphism...
https://www.nature.com/articles/s41467-025-60663-y
5 months ago
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#TodayOnMyBike
7 months ago
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reposted by
Bill Harder, PhD
7 months ago
Prepping my
#datavisualization
slides tomorrow's class means it is once again time for my favorite annual activity: finding new awful charts to include. What a beauty!
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reposted by
Ardem Patapoutian
7 months ago
Published an op-ed for
@cnn.com
: “Nobel laureate: I owe America my success. Today, its scientific future is in danger.” A personal reflection on what’s at stake as science funding gets slashed. I’d be grateful if you could amplify both in and beyond the science world.
www.cnn.com/2025/04/09/h...
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Nobel laureate: I owe America my success. Today, its scientific future is in danger | CNN
Dr. Ardem Patapoutian says he watches “with deep sadness as the United States’ remarkable scientific enterprise, which took generations of hard work and national investment to build, faces a concerted...
https://www.cnn.com/2025/04/09/health/nobel-laureate-research-funding-patapoutian/index.html
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reposted by
Oded Rechavi
7 months ago
Short read sequencing
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reposted by
Greg Copenhaver
8 months ago
Our (
@jeffsekelsky.bsky.social
, Corbin Jones, & me)
#Meiosis
, Recombination & Evolution of Sex class
@uncchapelhill.bsky.social
loved talking w/
@takashiakeralab.bsky.social
about his lab's
@biorxivpreprint.bsky.social
on meiotic cohesin errors & sterility in hybrid mice.
doi.org/10.1101/2025...
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reposted by
Kurianlab
9 months ago
*Tenured full Professorship in Genetics and Molecular Cell Biology* at the University Of Cologne, Germany It's an opportunity to rebuild the place that used to be home to luminaries including Benno Müller-Hill, Max Delbruck, Campos-Ortega, Diethard Tautz Maria Leptin, Thomas Langer
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Professorship in genetics and molecular cell biology (W3) (f/m/d) - Academic Positions
The University of Cologne is one of the oldest and largest universities in Germany. With its six Faculties covering a broad spectrum of disciplines and its i...
https://academicpositions.com/ad/university-of-cologne/2025/professorship-in-genetics-and-molecular-cell-biology-w3-f-m-d/227902
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reposted by
André Marques
9 months ago
I am thrilled to share our new review on holocentric chromosomes. It was a lot of fun to write it together with Ines Drinnenberg! Same but different: Centromere regulations in holocentric insects and plants
doi.org/10.1016/j.ce...
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reposted by
Corentin Claeys Bouuaert
9 months ago
🥳Just published
@nature.com
. Over 25 years after the discovery of SPO11 as the enzyme responsible for initiating meiotic recombination, we finally succeeded in reconstituting its DNA cleavage activity.🧵
www.nature.com/articles/s41...
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SPO11 dimers are sufficient to catalyse DNA double-strand breaks in vitro - Nature
A biochemical system recapitulates the hallmarks of meiotic double-strand break formation, with mouse SPO11 catalysing break formation in the absence of any partners and remaining covalently atta...
https://www.nature.com/articles/s41586-024-08574-8
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#TodayOnMyBike
9 months ago
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#TodayOnMyBike
9 months ago
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#TodayOnMyBike
9 months ago
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reposted by
HunterLab.bsky.social
9 months ago
Sadly, our colleague and friend Scott Hawley passed away this morning. He was an irreplaceable presence and force for good in the meiosis an Drosophila communities and will be sorely missed.
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reposted by
MAYosis
10 months ago
Hear hear, our 4 keynote speakers!
#MAYosis
May 7th: Elvan Böke
@crg.eu
May 14th: Felicity Jones
@unigroningen.bsky.social
May 21st : Ofer Rog
@theroglab.bsky.social
@utah.edu
May 28th: Francesca Cole
@francescacole.bsky.social
@mdanderson.bsky.social
meiosis.cornell.edu/mayosis2025/...
🧵⬇️
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reposted by
Marc Somssich
10 months ago
Today, Director
@raphmercier.bsky.social
officially announced the new name of the main lecture hall at the MPIPZ Cologne: "Jeff Schell Lecture Hall" If you're wondering how Jeff earned the honor, have a look at my Short History of Plant Transformation:
peerj.com/preprints/27...
#PlantScience
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reposted by
Abby Dernburg
10 months ago
Well, today wasn't a total loss. Saw an awesome tenure talk by my colleague
@moorjanipriya.bsky.social
, and this paper from former postdoc Simone Kohler (now at
@embl.org
) is finally out! Dynamic molecular architecture of the synaptonemal complex | Science Advances
www.science.org/doi/10.1126/...
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Dynamic molecular architecture of the synaptonemal complex
A separation-of-function allele reveals a role of the ultrastructure of the synaptonemal complex in crossover regulation.
https://www.science.org/doi/10.1126/sciadv.adq9374
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