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Germain Montazeaud

@germtz.bsky.social
50 followers 16 following 28 posts

INRAE researcher plant-plant interactions, evolutionary biology, quantitative genetics, agroecology

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Germain Montazeaud @germtz.bsky.social · 07/09/2026
If you want to know more about PHYTOPOGON, check out the @inrae-france.bsky.social article: www.inrae.fr/en/actualite...
inrae.fr
ERC Grant to test the green beard effect in plants
Germain Montazeaud, a researcher in the Plant Biology and Breeding (BAP) division, has been awarded a Starting Grant from the European Research Council for his five-year PHYTOPOGON project (€1.5 milli...
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Germain Montazeaud @germtz.bsky.social · 07/09/2026
Stay tuned if you are interested in plant–plant interactions, social evolution, and genomics! We will soon be looking for students and research assistants to join the adventure!
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Germain Montazeaud @germtz.bsky.social · 07/09/2026
Very happy to share that the @erc.europa.eu has selected PHYTOPOGON for funding! 😁🌱 In this project, we will test whether plants have greenbeard genes — an evolutionary mechanism that could allow them to recognize the genetic identity of their neighbours.
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Sam Wuest @samwuest.bsky.social · 12/06/2026
Our study on the evolution of shade avoidance, a "selfish trait" in plants, over 80 years of soybean breeding history. Led by @lukecoevo.bsky.social and Emanuel Kopp, and published here: doi.org/10.1111/eva..... Great stuff!
doi.org
Shade Avoidance Restricts Soybean Breeding Progress and Increases Herbivore Susceptibility
High planting densities expose field crops to competition for light, which typically induces shade avoidance responses such as stem elongation. While adaptive in natural environments, these responses...
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Reposted by Germain Montazeaud
Yasuhiro (Yasu) Sato @yassato.bsky.social · 12/06/2026
... and here is the press-release from Hokkaido University (only in Japanese, sorry). www.hokudai.ac.jp/news/2026/06...
hokudai.ac.jp
新着情報: 遺伝的多様性を維持する力は植物の収量も増やす~農業への貢献に期待~(地球環境科学研究院 助教 佐藤安弘)
2026年6月12日 ポイント ●植物の遺伝的多様性を維持する進化的要因を解明。●混ぜて植えると収量が増える遺伝子座を特定することに成功。●作物の競争緩和と収量増加に期待。 概要 北海道大学大学院地球...
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Germain Montazeaud @germtz.bsky.social · 26/05/2026
If you are working on crop diversification, plant–plant interactions, agroecology, or related topics, join us in Paris-Saclay ! 📅 7–9 October 2026 — Paris-Saclay, France 📢 Abstract submission deadline: June 15th More information: mix4agroecology.colloque.inrae.fr
mix4agroecology.colloque.inrae.fr
Home
Mixing crops for agroecology
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Germain Montazeaud @germtz.bsky.social · 26/05/2026
The conference will bring together researchers involved in national and international projects on crop mixtures, varietal mixtures, and agroecology. It aims to foster discussions across disciplines, including agronomy, genetics, plant pathology, ecophysiology, and social sciences
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Germain Montazeaud @germtz.bsky.social · 26/05/2026
Next fall, Paris-Saclay will host what promises to be a major scientific event for agroecology: the Mix4Agroecology conference.
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Thomas Lesaffre 🌱 @thomaslesaffre.bsky.social · 07/04/2026
🌺 PhD position in Theoretical Evolutionary Biology! 🌺 There is about two weeks left to apply to come work with me on the evolution of plant reproductive strategies at @unifr.bsky.social ! Contact me or visit here or for more info: tinyurl.com/monoecy Please share! 🌱
A view of the city of Fribourg, Switzerland
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Yasuhiro (Yasu) Sato @yassato.bsky.social · 04/04/2026
New preprint with Kosuke Hamazaki is out in bioRxiv. The beta version of its R package is available via GitHub at github.com/yassato/rNei...
github.com
GitHub - yassato/rNeighborLMM: rNeighborLMM: Fitting mixed models for oligogenic and polygenic indirect genetic effects
rNeighborLMM: Fitting mixed models for oligogenic and polygenic indirect genetic effects - yassato/rNeighborLMM
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Thomas Lesaffre 🌱 @thomaslesaffre.bsky.social · 16/03/2026
🚨 PhD position available ! 🚨 I am hiring a PhD student to work with me on the evolution of plant sexual systems 🌺 at @unifrbiology.bsky.social ! The position is funded for 4 years by @snsf.ch as part of my Ambizione fellowship. More info here: tinyurl.com/monoecy 🌱 Please RP and share widely ! 🌱
View of the old city of Fribourg from the "Pont du Milieu". 
© Ville de Fribourg
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Thomas Lesaffre 🌱 @thomaslesaffre.bsky.social · 09/03/2026
Come visit us at @unil.bsky.social ! 😃
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Yasuhiro (Yasu) Sato @yassato.bsky.social · 12/03/2026
We just published a review article as a book chapter of Advances in Ecological Research. This review focuses on interdisciplinary fields between genome-assisted breeding and community genetics. Please DM if you want a reprint. doi.org/10.1016/bs.a...
doi.org
Redirecting
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Charles Mullon @charlesmullon.bsky.social · 03/03/2026
Many organisms, including humans, reshape their environments in ways that influence the conditions faced by future generations. We ask whether this can favour biological variation with @irisprigent.bsky.social in our new paper. Thanks to @dee-unil.bsky.social @snsf.ch www.pnas.org/doi/full/10....
pnas.org
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
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Proceedings of the National Academy of Sciences @pnas.org · 13/01/2026
A sex-determining gene region in ants, bees, and wasps has maintained its function for over 150 million years through its chromosomal position rather than its DNA sequence, as evidenced by the lack of sequence homology among lineages. In PNAS: ow.ly/n9eU50XWipU
A member of the Hymenoptera order, Colletes cunicularius, has an evolutionarily conserved sex-determination mechanism. 
CREDIT: NJ Vereecken
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Miya Qiaowei Pan @miyapan.bsky.social · 01/12/2025
Excited to share that I’m starting a research group at MPI for Biology Tübingen — and we’re recruiting PhD students! We are offering two fully funded PhD positions on sex determination and development in Hymenoptera 🐜🐝. Please share with prospective students who might be interested.
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EMBO @embo.org · 29/10/2025
Sign up now for EMBO Workshop "Molecular mechanisms of selfish elements and strategies" in Bern, Switzerland, 8–11 February 2026. Abstract submission/Registration by: 15 December 2025/15 January 2026 meetings.embo.org/event/26-selfish-… #EMBOselfishElements #GeneSky #EMBOevents 🧪
meetings.embo.org
Molecular mechanisms of selfish elements and strategies
Certain genes, chromosomes, organelles, or entire sets of chromosomes can bias their transmission to the next generation, propagating themselves at the expense of the rest of the genome. Referred to …
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Germain Montazeaud @germtz.bsky.social · 15/10/2025
It opens many questions on the phenotypic effects mediating the preferential predation, and on the co-evolution between durum wheat and Messor ants!
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Germain Montazeaud @germtz.bsky.social · 15/10/2025
The originality of this work is that preferential predation of specific wheat genotypes was shown in real plant stands, directly in the field, i.e., not by making ants chose between different seeds in lab settings.
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Germain Montazeaud @germtz.bsky.social · 15/10/2025
He could confirm the effect of the locus based on a cafeteria experiment
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Germain Montazeaud @germtz.bsky.social · 15/10/2025
Quite interestingly, he could explain a large proportion of this preferential attacks by allelic variation at a specific genomic region on chr. 2A, containing a 3.6 Mb chromosomal inversion
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Germain Montazeaud @germtz.bsky.social · 15/10/2025
Clément noticed that specific durum wheat genotypes got attacked by Messor barbarus ants in the field
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Germain Montazeaud @germtz.bsky.social · 15/10/2025
Check-out this very interesting result by Clément Plessis, PhD student in our group! onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
A La Carte Seed Harvesting: Messor barbarus Ants Select Durum Wheat Genotypes
Our study shows that the harvester ant Messor barbarus exhibits genotype-specific preferences for durum wheat, linked to a major QTL on chromosome 2A. Ant predation is also influenced by spike size, ...
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Germain Montazeaud @germtz.bsky.social · 15/10/2025
He could confirm the effect of the locus based on a cafeteria experiment
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Germain Montazeaud @germtz.bsky.social · 15/10/2025
Quite interestingly, he could explain a large proportion of this preferential attacks by allelic variation at a specific genomic region on chr. 2A, containing a 3.6 Mb chromosomal inversion
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Germain Montazeaud @germtz.bsky.social · 15/10/2025
Clément noticed that specific durum wheat genotypes got attacked by Messor barabarus ants in the field.
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Journal of Experimental Botany @jxbotany.bsky.social · 02/10/2025
🌱 RESEARCH 🌱 Wheat varieties with a high root projected area in pure stands experience a strong relaxation of below-ground competition in mixtures at the seedling stage under resource-limited conditions – Montazeaud et al. 🔗 doi.org/10.1093/jxb/... #PlantScience 🧪 @germtz.bsky.social
Fig. 1.Experimental design. (A and B) Close-up views of RhizoTubes® showing wheat seedlings and their roots. (C) Spatial distribution of the seedlings within the RhizoTubes® in both pure (up) and mixed (bottom) stands. Different colours represent different genotypes. (D) Schematic representation of the experiment; each dark square represents a RhizoTube®. The green squares are the control RhizoTubes® and are all grown with the same wheat variety to check environmental heterogeneity.
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Marie Monniaux @mariemonniaux.bsky.social · 12/09/2025
Check out this cool work from @crouxevo.bsky.social and others, congrats!!! 🥳 Rapid establishment of species barriers in plants compared with that in animals | Science www.science.org/doi/10.1126/...
science.org
Rapid establishment of species barriers in plants compared with that in animals
Speciation, the process by which new reproductively isolated species emerge from ancestral populations, results from the gradual accumulation of barriers to gene flow within genomes. To date, the noti...
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Germain Montazeaud @germtz.bsky.social · 05/09/2025
Stay tuned for the upcoming call for contributions!
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Germain Montazeaud @germtz.bsky.social · 05/09/2025
Among many symposia, I'll be co-animating one on genetic models accounting for intra-specific interactions, covering trees, plants, animals, with Piter Bijma (WUR) as an invited.
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Germain Montazeaud @germtz.bsky.social · 05/09/2025
Save the date! Next fall (2026), we will be hosting an interdisciplinary conference on crop diversification in Paris.
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Germain Montazeaud @germtz.bsky.social · 07/07/2025
More information available here: listes.umontpellier.fr/sympa/d_read...
listes.umontpellier.fr
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Germain Montazeaud @germtz.bsky.social · 07/07/2025
The PhD contract is funded by the University of Montpellier (PTL1) which covers salary for 3 years + ~ 25K functioning costs
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Germain Montazeaud @germtz.bsky.social · 07/07/2025
The PhD student will work on root branching phenotyping, QTL validation, and varietal mixture experiments to decipher the link between root branching, resource availability, and plant-plant interactions
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Germain Montazeaud @germtz.bsky.social · 07/07/2025
Our group has identified several Quantitative Trait Loci (QTLs) associated with root branching in durum wheat . Our preliminary data indicate that these QTLs associate with varietal mixture performance under contrasted environmental conditions
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Germain Montazeaud @germtz.bsky.social · 07/07/2025
PhD fellowship available 📢! We are offering a 3-year fully funded PhD fellowship at the interface between functional ecology and quantitative genetics in Montpellier FR ! (Application deadline 31 July)
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Charles Mullon @charlesmullon.bsky.social · 12/05/2025
Last chance to attend the school for free if you're doing your PhD in an Official Development Assistance (ODA) country ! Apply by 15 May for a full scholarship covering tuition, travel, accommodation, and meals.
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Germain Montazeaud @germtz.bsky.social · 07/05/2025
Full-text can be found here: academic.oup.com/jxb/advance-...
academic.oup.com
Validate User
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Germain Montazeaud @germtz.bsky.social · 07/05/2025
This was only possible thanks to the use of the high-throughput root phenotyping platform 4pmi at @inrae-france.bsky.social
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Germain Montazeaud @germtz.bsky.social · 07/05/2025
and thus they disengage from the arms race for root proliferation and biomass accumulation. Very interesting to see such belowground plasticity in response to plant neighbours, and to identify this plasticity as a target trait for plant breeding and mixture assembly!
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Germain Montazeaud @germtz.bsky.social · 07/05/2025
This is because highly competitive varieties tend to over-produce roots in monoculture because they have a highly competitive neighbour (i.e., themselves). In mixture, such highly competitive varieties benefit from having, on average, weaker competitors,
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Germain Montazeaud @germtz.bsky.social · 07/05/2025
New paper out in @jxbotany.bsky.social! 🌱🌾 We found that mixing different wheat varieties can decrease belowground competition at early growth stages, especially under resource limited conditions.
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