Benoît Perez-Lamarque
bperezlamarque.bsky.social
Benoît Perez-Lamarque
@bperezlamarque.bsky.social
Assistant Professor of Botany & Ecology at Université de Toulouse
#microbiota #symbiosis #evolution #modeling #mycorrhiza
Reposted by Benoît Perez-Lamarque
An arbuscular mycorrhiza from the 407-million-year-old Windyfield Chert identified through advanced fluorescence and Raman imaging

📖 nph.onlinelibrary.wiley.com/doi/10.1111/...

Summary also available in French and Spanish.

@nhm-london.bsky.social #PlantScience
November 20, 2025 at 3:35 PM
Reposted by Benoît Perez-Lamarque
Interesting new work on bird microbiomes challenging the notion of a lacking signal of phylosymbiosis - www.biorxiv.org/content/10.1...
Host filtering and biogeography structure island bird gut microbiomes
Gut microbiomes are central to host ecology and evolution, yet the mechanisms driv-ing their diversification remain elusive, partly because host evolution and biogeography are often confounded. The re...
www.biorxiv.org
September 8, 2025 at 10:55 AM
Reposted by Benoît Perez-Lamarque
The extent to which closely related hosts share similar gut microbiota fascinates me. Work that truely stands out to me comes from @bperezlamarque.bsky.social and colleagues using process-based modelling over correlative approaches - a 'must' read #mevosky academic.oup.com/mbe/article/...
Phylogenetic Comparative Approach Reveals Evolutionary Conservatism, Ancestral Composition, and Integration of Vertebrate Gut Microbiota
Abstract. How host-associated microbial communities evolve as their hosts diversify remains equivocal: how conserved is their composition? What was the com
academic.oup.com
October 6, 2025 at 8:15 AM
Reposted by Benoît Perez-Lamarque
Did you know coronavirus infections impact the gut microbial community of #bats? But the effect differs between viruses. Published in @ismepublications.bsky.social - Big team effort: @alice-risely.bsky.social @cdrosten.bsky.social @vmcorman.bsky.social et al. academic.oup.com/ismecommun/a...
Hibecovirus (genus Betacoronavirus) infection linked to gut microbial dysbiosis in bats
Abstract. Little is known about how zoonotic virus infections manifest in wildlife reservoirs. However, a common health consequence of enteric virus infect
academic.oup.com
April 3, 2025 at 7:16 AM
Reposted by Benoît Perez-Lamarque
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/...
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...
www.science.org
September 12, 2025 at 7:10 AM
Using long-term monitoring samples from terrestrial and aquatic ecosystems, we tracked tens of thousands of species across Germany using eDNA, and found no universal loss in local communities, but stronger-than-expected compositional turnover and biotic homogenization at the regional scale.
August 1, 2025 at 12:40 PM
Reposted by Benoît Perez-Lamarque

Dans un numéro spécial (n°245, vol.56) de l'Orchidophile paru en juin et piloté par l'équipe INEVEF @isyeb.mnhn.fr
un dossier passionnant sur les mycorhizes des #orchidées avec les #champignons du #sol.
Vous y retrouverez l'éditorial de Florent Martos....
June 30, 2025 at 8:08 AM
Reposted by Benoît Perez-Lamarque
Interesting for epidemiology as well as macroevolution and biogeography.
Rates of species interactions from co-phylogenies.
www.biorxiv.org/content/10.1...
🧪 ⚒️ #Paleobio #EvoBio
May 20, 2025 at 3:57 PM
New preprint reexamining codiversification in mycorrhizal symbioses! 🌱🍄 Spoiler: We found evidence of coevolution, but not cospeciation/codiversification. Congrats Fantine for your great work! 😁
Questioning the Evidence for Host-Symbiont Codiversification in Mycorrhizal Symbioses https://www.biorxiv.org/content/10.1101/2025.05.14.653600v1
May 16, 2025 at 8:05 AM
Reposted by Benoît Perez-Lamarque
Last first-author paper finally published! This took too many years but even after leaving research we manage to get it done, with Odile Maliet, @leandrist.bsky.social, @noguesbravo.bsky.social, @n8upham.bsky.social, Walter Jetz, and really supportive Hélène Morlon

www.nature.com/articles/s41...
Negative global-scale association between genetic diversity and speciation rates in mammals - Nature Communications
Genetic diversity and speciation rate support adaptability and species richness patterns, respectively. Here, the authors find a negative association between mitochondrial genetic diversity and specia...
www.nature.com
February 20, 2025 at 7:42 PM
Reposted by Benoît Perez-Lamarque
Intriguing novel fungal symbiosis …
A thallus-forming N-fixing fungus-cyanobacterium symbiosis from subtropical forests

www.science.org/doi/10.1126/...
A thallus-forming N-fixing fungus-cyanobacterium symbiosis from subtropical forests
Fungus lives within cyanobacterial sheaths in a thallus-forming symbiosis, named “phyllosymbia.”
www.science.org
February 14, 2025 at 7:12 AM