Schnittger Lab
@schnittger-lab.bsky.social
An international team of cell biologists, molecular biologists, and biochemists investigating the cell cycle, meiosis and DNA damage in plants.
Great collaboration between University of Hamburg and the team of Moussa Benhamed from the Institute of Plant Sciences-Paris-Saclay driven by @tuncayhasibe.bsky.social
November 5, 2025 at 3:33 PM
Great collaboration between University of Hamburg and the team of Moussa Benhamed from the Institute of Plant Sciences-Paris-Saclay driven by @tuncayhasibe.bsky.social
BUT: restoring MER3 can partly rescue fertility. With DREAM’s role conserved from plants to animals, we’re excited to shed light on how reproduction is orchestrated across multicellular life! 🌱🔬✨ #Meiosis #Science #PlantBiology
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
Transcriptional control of meiotic recombination by the DREAM complex
Meiotic chromosome segregation and recombination, essential for sexual reproduction and evolution, require a specialized gene set. However, how meiotic gene expression is controlled remains largely un...
www.biorxiv.org
November 5, 2025 at 3:28 PM
BUT: restoring MER3 can partly rescue fertility. With DREAM’s role conserved from plants to animals, we’re excited to shed light on how reproduction is orchestrated across multicellular life! 🌱🔬✨ #Meiosis #Science #PlantBiology
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
Reposted by Schnittger Lab
In WT plants, expansion microscopy with spindle immunolabeling showed microtubule connections between spindle poles and the apicobasal cortex.
August 25, 2025 at 9:15 AM
In WT plants, expansion microscopy with spindle immunolabeling showed microtubule connections between spindle poles and the apicobasal cortex.
Thanks Yaniv. Very kind.
August 25, 2025 at 6:45 PM
Thanks Yaniv. Very kind.
Reposted by Schnittger Lab
The identification of the very conserved CTF18, SGO2 and SPF2 as suppressors of centromere-proximal crossovers highlights the importance of cohesin turnover in this process and opens up new possibilities for plant breeding. Much more in the paper : www.biorxiv.org/content/10.1...
Unlocking meiotic crossovers near plant centromeres
Crossovers (COs) ensure proper chromosome segregation during meiosis and generate genetic diversity. COs are non-uniformly distributed along chromosomes and almost universally suppressed in centromere...
www.biorxiv.org
August 25, 2025 at 7:54 AM
The identification of the very conserved CTF18, SGO2 and SPF2 as suppressors of centromere-proximal crossovers highlights the importance of cohesin turnover in this process and opens up new possibilities for plant breeding. Much more in the paper : www.biorxiv.org/content/10.1...
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...
www.biorxiv.org/content/10.1...
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 ...
www.biorxiv.org
August 25, 2025 at 4:30 PM
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...
www.biorxiv.org/content/10.1...
This led to our first live cell imaging paper on Arabidopsis meiosis in 2019 elifesciences.org/articles/42834.
What we learned from the male side brought us back to our original question, and so began another chapter.
What we learned from the male side brought us back to our original question, and so began another chapter.
August 25, 2025 at 4:30 PM
This led to our first live cell imaging paper on Arabidopsis meiosis in 2019 elifesciences.org/articles/42834.
What we learned from the male side brought us back to our original question, and so began another chapter.
What we learned from the male side brought us back to our original question, and so began another chapter.
Fantastic collaboration with colleagues from Hungary and the Netherlands.
www.cell.com/iscience/ful...
www.cell.com/iscience/ful...
Functional characterization of the Csm1-like protein TITAN 9 in Arabidopsis thaliana
Plant genetics; Plant bioinformatics; Plant Biology; Plant physiology; Plant systematics;
Plant evolution; Plant development
www.cell.com
August 22, 2025 at 4:47 PM
Fantastic collaboration with colleagues from Hungary and the Netherlands.
www.cell.com/iscience/ful...
www.cell.com/iscience/ful...
While a complete knockout is lethal, meiosis-specific reduction of TTN9 causes striking chromosome segregation issues and abnormal centromere signals during meiosis I. Our findings support a conserved role for Csm1-like proteins in maintaining healthy chromosome segregation across eukaryotes.
August 22, 2025 at 4:47 PM
While a complete knockout is lethal, meiosis-specific reduction of TTN9 causes striking chromosome segregation issues and abnormal centromere signals during meiosis I. Our findings support a conserved role for Csm1-like proteins in maintaining healthy chromosome segregation across eukaryotes.
Our work highlights an important role for stress granules during meiosis in response to heat stress.
This paper is also the first one from our local research network BIKON studying biomolecular condensates in Hamburg.
www.science.org/doi/10.1126/...
This paper is also the first one from our local research network BIKON studying biomolecular condensates in Hamburg.
www.science.org/doi/10.1126/...
August 22, 2025 at 4:44 PM
Our work highlights an important role for stress granules during meiosis in response to heat stress.
This paper is also the first one from our local research network BIKON studying biomolecular condensates in Hamburg.
www.science.org/doi/10.1126/...
This paper is also the first one from our local research network BIKON studying biomolecular condensates in Hamburg.
www.science.org/doi/10.1126/...
Interestingly, this behavior is specific to TAM; other meiotic cyclins do not form such condensates.
Crucially, we found that TAM’s recruitment to these granules enables plants to proceed to the second meiotic division under challenging conditions.
Crucially, we found that TAM’s recruitment to these granules enables plants to proceed to the second meiotic division under challenging conditions.
August 22, 2025 at 4:44 PM
Interestingly, this behavior is specific to TAM; other meiotic cyclins do not form such condensates.
Crucially, we found that TAM’s recruitment to these granules enables plants to proceed to the second meiotic division under challenging conditions.
Crucially, we found that TAM’s recruitment to these granules enables plants to proceed to the second meiotic division under challenging conditions.
As seen on our kitchen cupboard:
January 29, 2025 at 1:55 PM
As seen on our kitchen cupboard:
Very cool project for a Ph.D. student in the team of our neighbors here at the Institute for Plant Science and Microbiology, University of Hamburg @uni-hamburg.de. Highly recommended.
January 28, 2025 at 3:03 PM
Very cool project for a Ph.D. student in the team of our neighbors here at the Institute for Plant Science and Microbiology, University of Hamburg @uni-hamburg.de. Highly recommended.