Ren Ujimatsu

@rujimatsu.bsky.social

Postdoc @UTokyo/plant pathology/Colletotrichum fungi/pathogen-mutualist continuum she/her

Super proud to see this preprint out! We found that a conserved fungal protein family has ancient antimicrobial activity 🍄‍🟫 I loved working on this evolutionary side of plant pathogenicity together with my coauthors. Preprint: www.biorxiv.org/content/10.6... 👇 or see the 🧵 here

Team Thomma@teamthomma.bsky.social · last wk.

📣 New preprint! 🧵 Fantastic work led by @antonkraege.bsky.social Fact: Cerato-platanins are everywhere in fungi. Found across the fungal kingdom, implicated in everything from development to virulence to immune activation. But what do they *actually* do? We finally found the answer 👇

PLoS Genet: Whole-genome sequencing reveals a possible molecular basis of sex determination in the dioecious wild yam Dioscorea tokoro (2026) https://www.tsl.ac.uk/publications/166554

PLoS Genet: Whole-genome sequencing reveals a possible molecular basis of sex determination in the dioecious wild yam Dioscorea tokoro (2026)

Dioecious plants, which have distinct male and female individuals, constitute ~5% of angiosperm species and have emerged frequently and independently from hermaphroditic ancestors. Although recent molecular studies of sex determination have started to reveal the diversity of the genetic systems underlying dioecy, research on the evolution of dioecy is limited, especially in monocots. Here, we explore the molecular basis of sex determination in the monocot Dioscorea tokoro, a dioecious wild yam endemic to East Asia. Chromosome-scale and haplotype-resolved genome assemblies and linkage analysis suggested that this plant has a male heterogametic sex-determination (XY) system, with sex-determination regions located on chromosome 3. Sequence comparison between the X- and Y-chromosomes and read coverage analysis revealed X- and Y-specific regions in putative pericentromeric chromosome regions. Within the Y-specific region, we propose two candidate genes that are likely involved in sex determination: BLH9, encoding a homeobox protein, and HSP90, encoding a molecular chaperone. BLH9 functions in a similar way as AtBLH9 in Arabidopsis thaliana. BLH9 could be involved in suppression of female organ development, whereas HSP90 might be required for pollen development. These results shed light on the complex evolution of dioecy in plants.

tsl.ac.uk

We are very close to reaching the registration cap for MECS2026. Given the strong interest, we have increased the number of participants from 100 to 120 and extended registration until April 12. Please note, however, that we can no longer accept poster submissions.

Silvia Ramundo@sramundo.bsky.social · 6mo ago

Here we go again! Join us in Vienna, May 21–22, for two days of plant science—talks, discussions, and celebration of what makes plants both beautiful and essential 💚Full program + registration here: www.oeaw.ac.at/gmi/news-eve... Come be part of it — each of you counts!

Less than two weeks left to apply for the TSL Summer Conference in Plant-Microbe Interactions! ☀️🌱🧬 Discuss the latest approaches & discoveries in plant health with international and local speakers. ⏰ APPLY online by 30 March '26 ⬇️

TSL Summer Conference in Plant-Microbe Interactions, 20th – 31st July…

Inviting Early Career Researchers to join international experts in discussing the latest approaches and discoveries in Plant-Microbe Interactions …

tsl.ac.uk

Join us on March 10, 2026 at Kyoto University 🇯🇵 for a day celebrating my long-time friend and collaborator Prof. Ryohei Terauchi. "Kyoto Mini-Symposium on Plant–Microbe Interactions"

Bild