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Reposted by Hasibe Tuncay

Schnittger Lab @schnittger-lab.bsky.social · 06/05/2026

Finally, here it is: after 12 years, and driven by the incredible hard work and innovation of two Ph.D. students, Bingyan Hu and Maria Prusicki, with biomathematical support from Katarina Stahlmann (UKE) — "A cytological framework of female meiosis in Arabidopsis". academic.oup.com/plcell/artic...

academic.oup.com

A cytological framework of female meiosis in Arabidopsis

Live-cell imaging reveals characteristic cytological stages of female meiosis in Arabidopsis and allows an assessment of their durations.

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Chloe Girard, PhD @chloegirard.bsky.social · 01/10/2025

🚨 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) !

The recombination frequency (cM/Mb) along chromosome 4 of A. thaliana (female meiosis).

In full hybrids (grey), where polymorphism is distributed all along chromosomes, most crossovers occur in the regions surrounding the Centromere (Cen), and very few at chromosome ends (Tel: telomeres).

In lines where polymorphism is restricted to chromosome ends (purple), the local recombination rate increases drastically, at the expense of the non-polymorphic regions (yellow).

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Schnittger Lab @schnittger-lab.bsky.social · 05/11/2025

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...

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Hasibe Tuncay @tuncayhasibe.bsky.social · 14/11/2025

Thrilled to share our new bioRxiv preprint! 🌱 💫 We uncover how the plant DREAM complex directly regulates meiotic recombination in Arabidopsis. So happy to finally share this piece of my PhD work!

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Franzi Böwer @flipping-meiosis.bsky.social · 03/08/2025

Happy to share the first story from my postdoc in @schnittger-lab.bsky.social We studied TITAN9, a Csm1-like protein in Arabidopsis. Even though I now work with soil, chromosome segregation and meiosis still have a special place in my heart. #meiosis4eva #meiosis #chromosomesegregation

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MAYosis @mayosis.bsky.social · 07/04/2025

We have a complete program ! meiosis.cornell.edu/mayosis2025/... The #Mayosis25 seminar series will open with a tribute to Scott Hawley by @jeffsekelsky.bsky.social. Congrats to all the selected speakers and we look forward to hearing about your fantastic science ! #Meiosis4ever

meiosis.cornell.edu

MAYosis 2025

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