A great day spent together exploring Bouzov and the Javoříčko Caves. A nice opportunity to connect and enjoy the beauty of the region.

Proud and happy to have contributed to the Arabidopsis thaliana genome reannotation as the only scientist from the Czech Republic. Accurate annotation of model plants like Arabidopsis is essential for advancing plant biology, functional genomics, and future crop research. 🌿 @iebcas.bsky.social

The Arabidopsis Information Resource (TAIR)@tairnews.bsky.social · 4mo ago

Why did researchers choose to volunteer their time to reannotate the Arabidopsis thaliana genome? It's value to the community🌾🧪🌱 bit.ly/4btx3HQ #TAIR #plantscience #plantbiology #Arabidopsis #cropscience #TAIR12

📣We’re excited to announce that registration for the Plant Meiosis Meeting is now open‼️ The website and preliminary program are live, and abstract submission will open soon. Book accommodation early due to major trade fairs in Poznań! See you in Poznań! 🌱 pmm.amu.edu.pl

🔊A long time ago in a microscopic galaxy far, far away.... 🎬Episode IV - A NEW MICROSCOPE 🔬 "It is period of cellular rebellion. Arabidopsis root cells have won first victory against the dark forces of DNA damage" Thanks to @dvonwangenheim.bsky.social and new i3 spinning disk @the.3i.social

Latest work from our group together with @jsharbro.bsky.social This review synthesizes insights into cytonuclear incompatibility in plant hybrids and allopolyploids, highlighting maternal bias, evolutionary consequences, and applications such as cytoplasmic male sterility in seed production.

Causes and Consequences of Cytonuclear Incompatibility in Hybrids of Flowering Plants

Abstract. Hybridization and polyploidization combine divergent nuclear genomes with maternally inherited organelles, often disrupting cytonuclear coadaptat

academic.oup.com

A new extreme of meiotic evolution: ✔️ 𝗻𝗼 crossovers ✔️ 𝗻𝗼 gene conversion ✔️ 𝗻𝗼𝗿𝗺𝗮𝗹 meiosis & fertility Sex mimics clonality without becoming asexual, in the holocentric multicellular eukaryote 𝘙𝘩𝘺𝘯𝘤𝘩𝘰𝘴𝘱𝘰𝘳𝘢 𝘵𝘦𝘯𝘶𝘪𝘴. more about it: www.biorxiv.org/content/10.6...

Someone got Cas9-Turbo to work. It's like basically Y1H but with proteomics. It however requires transgenic plant expressing Cas9-Turbo and gRNAs, which is still cumbersome for many plants that are not Arabidopsis. #PlantSciences

Nature Plants@natplants.nature.com · 7mo ago

New Brief Communication: "A CRISPR-based sequence proximity binding protein labelling system for scanning upstream regulatory proteins" rdcu.be/eZLUP CRISPR-based proximity labelling system to profile DNA-binding proteins such as PIF4 transcription factor .

The formation of different types of centromere remained unclear for a long time. An international research team led by the @leibnizipk.bsky.social examined this phenomenon by studying two lily-like plants. All results in @natcomms.nature.com ➡️PR: tinyurl.com/bdkjxvk6 ➡️Paper: tinyurl.com/dab39e88

This week in Olomouc, we came together for an informal meeting on Kinetochore and Centromere. We shared ideas, did science, and strengthened collaborations. Many thanks to all the researchers who joined us. It was a great way to close the year by sharing knowledge, projects, and future perspectives.

📣Plant Meiosis Meeting is back for its second edition‼️ Save the date: 9–11 September 2026, Poznań, Poland🌱 More details coming soon🤩

Excited to share our latest paper showing how heat stress halts DNA replication and mitosis in barley roots! 🌡️🌱 #PlantScience #HeatStress #Barley www.frontiersin.org/journals/pla...

This week our group attended the TANGENC Conference 2025 at CEITEC in Brno. Our PI, David Kopecký, delivered a talk on “Disrupted cytonuclear stoichiometry in newly developed plant polyploids and hybrids."

How do new centromeres evolve while staying compatible with the division machinery? Discover it in our new Nature paper! We show centromeres transition gradually via a mix of drift, selection, and sex, reaching new states that still work with the kinetochore. 👉 doi.org/10.1038/s41586-025-09779-1

How do plants control the genes needed for successful sexual reproduction? Our new work uncovers the DREAM complex as a crucial regulator of meiotic recombination in Arabidopsis. Without DREAM, plants are sterile—key recombination genes like MER3 are switched off...

New OA Article: "Hybridization and low-light adaptability in California eelgrass" rdcu.be/eNFeT Seagrass genomes of the deep-water Zostera pacifica and shallow-water Z. marina from the Eastern Pacific Ocean provide evidence for low-light adaptation.

We mourn the passing of our Editor-in-Chief Steve Long. His vision to establish one of the first journals dedicated to Global Change over 30 years ago was truly ahead of its time. Through GCB, researchers have demonstrated that biology and ecosystems are not simply victims of global change..

Great experience at Plant Chromosome Biology 2025 in Vienna 🌱 Congratulations to Jana Szecówka for being awarded Best Poster!

We’re excited to share our new work on how plants restore cytonuclear balance after whole-genome duplication. Using Arabidopsis auto- and allopolyploids, we uncover distinct, organelle-specific strategies in chloroplasts and mitochondria across generations. doi.org/10.1111/tpj....

Restoring cytonuclear harmony: Distinct strategies in Arabidopsis auto‐ and allopolyploids

Whole-genome duplication (WGD) disrupts cytonuclear balance by doubling nuclear content, requiring compensatory responses from organelles. In Arabidopsis auto- and allopolyploids, we found dynamic, o...

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A chromatin remodeling-independent role for #ATRX in protecting centromeric cohesion – Fangwei Wang and colleagues find an unexpected additional mechanism for preventing Wapl-mediated #cohesin release from mitotic centromere www.embopress.org/doi/full/10....

Just completed @embl.org Heidelberg’s intensive course on multi-omics data analysis. A highlight was network visualisation with Cytoscape led by Dr. Scooter Morris. Also, thanks to SEB for awarding the travel grant & to the @widehybridization.bsky.social for their support! #EMBLDataIntegration #SEB

Only one week left to register to the first conference on holocentric chromosomes, from cells to species! 🧬🪱🦋🌱 Join us in Switzerland on the 25-26 April 2025 Travel grants available! Register here: holocentricity.ch

Check out our most recent work elucidating the dynamics of genomic dominance in hybrids of Allium cepa × A. roylei. doi.org/10.1002/tpg2...

#Chloroplasts import 3,000+ nucleus-encoded proteins via TOC/TIC complexes and a motor system. This new #FreeAccess review highlights structural advancements, insights into #protein quality control and retrograde signaling, and more! doi.org/10.1111/jipb... #PlantScience 🔓

The kinesin motor POS3 and the microtubule polymerase MOR1 coordinate chromosome congression during mitosis in Arabidopsis (Yu Chen, Haofeng Liu, Yuanfeng Li, Xiao Shen, Shuting Li, Lan Yang, Xue An, et. al.) doi.org/10.1093/plce... #PlantScience

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Viral delivery of recombinases activates heritable genetic switches in plants (James C Chamness, Jon P Cody, Anna J Cruz, Daniel F Voytas) doi.org/10.1093/plph... @ASPB #PlantScience

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Do you love meiosis? Have a cool story to share? Join us for the XVth British Meiosis Meeting 26-27 of March in Liverpool! docs.google.com/forms/d/e/1F... You only have till Sunday to submit an abstract for a talk! ECRs are prioritised for speaking slots so the odds are in your favour 😁 #meiosis4eva

Very excited to share this new preprint from the lab (shorturl.at/l7lNq)! @hendersi.bsky.social si.bsky.social @camplantsci.bsky.social

CRISPR targeting of H3K4me3 activates gene expression and unlocks centromeric crossover recombination in Arabidopsis

H3K4me3 is a fundamental and highly conserved chromatin mark across eukaryotes, playing a central role in many genome-related processes, including transcription, maintenance of cell identity, DNA dama...

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Pecinka group has an opened PhD position to study genomic imprinting in barley! See below for more info. Friendly environment and beautiful city is a plus!

Chromatin organization and function@pecinka-grp.bsky.social · last yr.

🌱 PhD Position in Plant Epigenetics – Apply Now! 🔬 Are you fascinated by how plants regulate genes without changing DNA sequences? Join our research team and uncover the mysteries of plant epigenetics! 🧬 📍 UEB Olomouc 📅 15/4 2025 👉 [https://olomouc.ueb.cas.cz/en/parental-conflict]

The joys of interspecific hybridisation - Arabidopsis thaliana x A. lyrata. The bamboo sticks are 60cm long (for comparison) and the flowers even smell nice!😍

Our PI David Kopecký was invited to give a talk at the 9th annual seminar of Plant Breeding Working Group of ETH in Zurich organized by Bruno Studer and colleagues. Great company from Andreas Weber, past CEPLAS speaker, Rene Geurts from Wageningen University, and friends from ETH and Agroscope!