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Michelle Zavala-Paez

@michellezavala.bsky.social
53 followers 48 following 3 posts

PhD. Candidate Ecology at PennState University Evolutionary & conversation genomics | Hybrid zones | Tree physiology 🍃

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Reposted by Michelle Zavala-Paez
Science Magazine @science.org · 18/08/2026
In the forests of Puerto Rico, individual trees from the same species can store, handle, and transport water in different ways based on the dryness of their respective habitats. scim.ag/3U1icy3
scim.ag
Surprising uniqueness of Puerto Rico’s trees could make them more resistant to drought
Two trees from the same species can vary in how they transport and manage water, improving specieswide drought resilience
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Reposted by Michelle Zavala-Paez
José Cerca @naturalselection.bsky.social · 02/06/2026
🧨 New publication out (I think this one is 🌶️ ): Cerca & @stelkens.bsky.social - "The identity crisis of speciation genomics". academic.oup.com/evolinnean/a...
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New Phytologist @newphyt.bsky.social · 06/05/2026
✨ Paper spotlight ✨ (🧵 1/7) Climate change and crop resilience: Harnessing metabolomics for predicting stress tolerance nph.onlinelibrary.wiley.com/doi/10.1111/... #PlantScience
Fig. 1 Summarised methodology for metabolite biomarker discovery and genomic targets selection for those metabolites to predict high-throughput phenotypic and agronomic traits of interest for direct uptake in breeding programmes.
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New Phytologist @newphyt.bsky.social · 28/04/2026
The genetic basis of multi-trait drought escape in colonizing A. thaliana lineages Elfarargi et al. @ahmedelfarargi.bsky.social @ahancock.bsky.social @apmweber.bsky.social @mpipz.bsky.social @trr341.bsky.social @ceplas.bsky.social nph.onlinelibrary.wiley.com/doi/10.1111/...
Geographical distribution and genetic structure of the Cape Verde Islands and Morocco.
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Reposted by Michelle Zavala-Paez
Jill Hamilton @jillahamilton.bsky.social · 20/04/2026
Congrats to @krlopicc.bsky.social and undergraduate mentees @lucieanderson.bsky.social and @jacobmazza.bsky.social for submitting new work detailing the relationships between climate of origin, seed morphology, and early life history critical to fitness in black ash. www.biorxiv.org/content/10.6...
biorxiv.org
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Reposted by Michelle Zavala-Paez
New Phytologist @newphyt.bsky.social · 13/04/2026
Why do some tropical trees lose leaves in the dry season? Cássia-Silva et al. nph.onlinelibrary.wiley.com/doi/10.1111/...
Leaf habit variation and morphological diversity in Mimosa.
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Reposted by Michelle Zavala-Paez
New Phytologist @newphyt.bsky.social · 30/03/2026
Introgression despite minimal #hybridization: mating system modulates phenotypic associations with introgression in Clarkia Shelley A. Sianta, et al. nph.onlinelibrary.wiley.com/doi/10.1111/... #PlantScience
Clarkia xantiana ssp. xantiana (outcrosser) and ssp. parviflora (selfer) have parapatric distributions across broad and narrow spatial scales.
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Reposted by Michelle Zavala-Paez
Jill Hamilton @jillahamilton.bsky.social · 23/03/2026
Congratulations to @michellezavala.bsky.social for winning the Paul Hand award for Graduate Research Achievement in the Penn State College of Agricultural Sciences. I couldn’t be a more #proudPI. This a very well-deserved award!!
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Reposted by Michelle Zavala-Paez
Gina Baucom @gbaucom.bsky.social · 08/03/2026
🌿 Postdoc opportunity in plant evolutionary ecology/genetics! My lab in the Dept. of Ecology & Evolutionary Biology at the University of Michigan is recruiting a postdoctoral researcher to start Fall 2026. We study plant adaptation, using weeds as model systems. #Postdoc #EcoEvo Pls RT!
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New Phytologist @newphyt.bsky.social · 23/02/2026
Ecophysiology for climate-smart forest management #TansleyReview by Gessler et al. @wslresearch.bsky.social @arthurobuntspecht.bsky.social @annekempel.bsky.social @josegruenzweig.bsky.social nph.onlinelibrary.wiley.com/doi/10.1111/... #plantscience
Conceptual model of the expected role of dryland mechanisms along a climatic gradient from cool and moist towards hot and dry conditions, and their relevance for climate-smart forestry.
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Reposted by Michelle Zavala-Paez
Maddy Seale @maddyseale.bsky.social · 13/02/2026
Out in @science.org this week, multifaceted genomics approaches to accelerate American chestnut restoration www.science.org/doi/10.1126/... And an accompanying Perspective article here: www.science.org/doi/10.1126/... #genomics #plantscience #forestry
science.org
Genomic approaches to accelerate American chestnut restoration
More than a century after two introduced pathogens killed billions of American chestnut trees, introgression of resistance alleles from Chinese chestnuts has contributed to the recovery of self-sustai...
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Reposted by Michelle Zavala-Paez
Susana Wadgymar🌿🔬 @smwadgymar.bsky.social · 31/01/2026
This paper is a great for teaching phylogenetic trees. "Ancient DNA reveals elephant birds and kiwi are sister taxa and clarifies ratite bird evolution" Clearly written. It discusses hypotheses of relatedness among species via continental drift vs genetic data. 🧪 www.science.org/doi/10.1126/...
A figure depicting continental drift from when Gondwana existed to present day, with continents and countries colored according to the ratite species that occur or occurred on them. Next to that is a cartoon of a phylogeny that we would expect support for if continental drift explained patterns of species occurrence and relatedness. And next to that is a cartoon of the phylogeny supported by the genetic data presented in this paper, which demonstrates that closely related species must have traveled great distances after Gondwana broke up, after which flightlessness evolved, and that this happened more than once.
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Reposted by Michelle Zavala-Paez
New Phytologist @newphyt.bsky.social · 07/01/2026
Revisiting the relationship between stomatal size and speed across species – a meta-analysis Nik Woning, et al. nph.onlinelibrary.wiley.com/doi/10.1111/... #PlantScience
Graphical description of model parameters for an exponential (a, b) and sigmoidal (c) response model of gs
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Reposted by Michelle Zavala-Paez
David Lowry @davidlowry.bsky.social · 16/12/2025
Nice new review on my favorite topic. www.cell.com/trends/ecolo...
cell.com
Genomic insights into the origin of ecotypes
A century after Turesson introduced ecotypes as locally adapted subunits of species, their origins and nature remain debated. Recent advances in molecular ecology have breathed new life into the ecoty...
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Reposted by Michelle Zavala-Paez
Jill Hamilton @jillahamilton.bsky.social · 01/12/2025
Congratulations to @alaynamead.bsky.social and the entire #PopUpPoplars team for this collaborative effort predicting genotypic responses across environments. This research uses 17 replicated ‘mini gardens’ to predict role of mixed ancestry to growth, survival, and expansion to novel environments
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Michelle Zavala-Paez @michellezavala.bsky.social · 29/11/2025
New paper out! Thrilled to share our latest work on cytonuclear interactions in Populus hybrid zones, now published in Proceedings B. We show how mismatches between nuclear and chloroplast genomes influence key physiological traits in tree species @jillahamilton.bsky.social doi.org/10.1098/rspb...
doi.org
The role of cytonuclear interactions to plant adaptation across a Populus hybrid zone | Proceedings of the Royal Society B: Biological Sciences
Co-adaptation of cytoplasmic and nuclear genomes is critical to physiological function for many species. Despite this understanding, hybridization can disrupt co-adaptation, leading to a mismatch betw...
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Michelle Zavala-Paez @michellezavala.bsky.social · 21/11/2025
Always learning, always sharing, how trees adapt today, and how they’ll keep adapting as our world changes. Thanks #EVOLTREE for the opportunity to be part of such an amazing conference
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Michelle Zavala-Paez @michellezavala.bsky.social · 21/11/2025
Just published! 🌿 Our new study uncovers how hybridization and climate selection interact to shape stomatal trait evolution across six Populus contact zones. @jillahamilton.bsky.social If you’re curious about how hybridization influence adaptive trait variation, take a look doi.org/10.1111/nph....
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Reposted by Michelle Zavala-Paez
Jill Hamilton @jillahamilton.bsky.social · 21/11/2025
Very much a #proudPI moment when your PhD students @michellezavala.bsky.social and @krlopicc.bsky.social give such lovely presentations of their research. So glad to have the opportunity to join the #EvolTREE meeting and share our ongoing research and learn from diverse systems across Europe.
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Reposted by Michelle Zavala-Paez
David Lowry @davidlowry.bsky.social · 20/11/2025
I am currently searching for a new postdoctoral researcher to study the evolution, genetics, and physiology of cold acclimation and freezing tolerance in switchgrass at Michigan State University. This work will be funded by a newly funded five-year DOE grant. careers.msu.edu/jobs/researc...
careers.msu.edu
Research Associate-Fixed Term - East Lansing, Michigan, United States
Position Summary The Lowry Lab at Michigan State University is searching for a postdoctoral research associate to conduct molecular and physiological experiments to understand the causes of genetic va...
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Reposted by Michelle Zavala-Paez
New Phytologist @newphyt.bsky.social · 19/11/2025
Climate and hybridization shape #stomatal trait evolution in #Populus 📖 nph.onlinelibrary.wiley.com/doi/10.1111/... by Zavala-Paez et al. @WileyPlantSci @michellezavala.bsky.social @jillahamilton.bsky.social
Sampling and common garden design.
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Reposted by Michelle Zavala-Paez
Jill Hamilton @jillahamilton.bsky.social · 12/11/2025
It is official! DR. @michellezavala.bsky.social defended a very impressive dissertation today!! With friends, family, stomata cookies, and Ecuadorian Guinea pigs cheering her along! We understand so much more about the consequences of hybridization to the evolution of physiological traits!! #proudPI
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Reposted by Michelle Zavala-Paez
Jill Hamilton @jillahamilton.bsky.social · 11/11/2025
Hamilton Lab members are excited for the upcoming #EvolTREE meeting! Kyra will present our genetic conservation program in black ash , Michelle will discuss climate, hybridization, and stomatal evolution (tinyurl.com/y5rwu8eu), and I will discuss genomics-driven monitoring. Hope to see you there!!
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Reposted by Michelle Zavala-Paez
Temporal Ecology Lab @temporalecology.bsky.social · 06/10/2025
Our department at UBC is hiring for a professor of forest ecophysiology, including "tree ecophysiology; plant abiotic or biotic stress physiology; forest mortality and climate change responses; forest carbon balance; tree water relations; or nutrient use." Learn more at: tinyurl.com/5da56f5c
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Reposted by Michelle Zavala-Paez
Christopher Krieg 🌿 @ckrieg.bsky.social · 22/09/2025
🚨 1 Week Left to Apply! 🚨 The Krieg Lab is hiring a Research Professional in Plant Ecophysiology & Evolution. 📅 Deadline: October 1, 2025 📧 Sending materials (Cover Letter, CV, References) to: kriegc[at]wfu.edu
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Reposted by Michelle Zavala-Paez
Jill Hamilton @jillahamilton.bsky.social · 20/09/2025
First (annual?) Hamilton lab off-grid camping trip to Bald Eagle State Forest. Good company, scenery, s’mores and so much more. Food for the soul!! I’m a very #luckyPI to work with this amazing group!
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Lauren Eserman-Campbell @laeserman.bsky.social · 29/08/2025
We are recruiting a Research Scientist in Genetics trained in plant population genetics to run the Conservation Genetics Research Program! This is an incredible opportunity to work on a diverse and active team in a biodiversity hotspot!!! recruiting.paylocity.com/Recruiting/J...
recruiting.paylocity.com
Atlanta Botanical Garden Inc - Research Scientist, Genetics
The Atlanta Botanical Garden seeks a highly qualified scientist with training in plant population genetics to serve in the role of Research Scientist in Genetics within the Southeastern Center for Con...
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Reposted by Michelle Zavala-Paez
José Cerca @naturalselection.bsky.social · 19/08/2025
The 2025-26 Eco-Evo job list is out. Good luck to those applying! docs.google.com/spreadsheets...
docs.google.com
ecoevojobs.net 2025-26
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Andrew Stoehr @andrewstoehr.bsky.social · 14/08/2025
We're hiring TWO (two!) tenure-track assistant professors in my Biology department: cellular/molecular biology and plant biology. Within those categories, we are very open to research focus. Come work with me! And please spread the word! fa-exer-saasfaprod1.fa.ocs.oraclecloud.com/hcmUI/Candid...
fa-exer-saasfaprod1.fa.ocs.oraclecloud.com
Careers At Butler Careers
Welcome
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Reposted by Michelle Zavala-Paez
bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 12/08/2025
The genomic basis of local adaptation in the white x Engelmann spruce hybrid zone www.biorxiv.org/content/10.1101/202…
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Reposted by Michelle Zavala-Paez
Dan Sloan @sloanevolab.bsky.social · 14/07/2025
Please share! Our lab is recruiting a PhD student to join us starting fall 2026. Our group is broadly interested in plant molecular evolution and comparative genomics. More info about our lab and grad programs at Colorado St. is available on our lab website. sites.google.com/site/danielb...
sites.google.com
Sloan Lab
Welcome! Our research focuses on the evolutionary process at the molecular level. In particular, we investigate how a mixture of natural selection and non-adaptive forces create and maintain the amazi...
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Joel Sharbrough @jsharbro.bsky.social · 08/07/2025
Please RT! I'm hiring a postdoc to work in my new lab at UCSB (!) on an NSF-funded project investigating the phenotypic consequences of WGD for photosynthesis and respiration. Check out the full posting here: recruit.ap.ucsb.edu/JPF02986 And more info about the lab here: sharbroughlab.com
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Prof Richard Buggs @rbuggs.bsky.social · 27/06/2025
Just out in Science: we demonstrate a micro-evolutionary shift in a single generation, involving thousands of genomic loci, giving younger ash trees more resistance to ash dieback, on average, than their parents www.science.org/doi/10.1126/science.adp2990
science.org
Rapid polygenic adaptation in a wild population of ash trees under a novel fungal epidemic
Rapid evolution through small shifts in allele frequencies at thousands of loci is a long-standing neo-Darwinian prediction but is hard to characterize in the wild. European ash tree (Fraxinus excelsi...
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Jill Hamilton @jillahamilton.bsky.social · 25/06/2025
Honored to be appointed a Penn State Huck Institutes of the Life Sciences Leadership Fellow position. I am deeply grateful and thrilled to provide creativity and leadership within interdisciplinary spaces, emphasizing graduate training and evolutionary biology. www.psu.edu/news/faculty...
psu.edu
Huck announces 2025-26 Leadership Fellows | Penn State University
Faculty members Jill Hamilton, Wenrui Hao and Gustavo Nader have been named the 2025-26 Huck Leadership Fellows. As fellows, they will take part in a yearlong, high-level professional development prog...
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Jill Hamilton @jillahamilton.bsky.social · 23/06/2025
It begins!! Welcome to #forestgenetics2025 - where all the cool kids are hanging! #trees4everyone @michellezavala.bsky.social @diegodelorbe.bsky.social @krlopicc.bsky.social
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Jill Hamilton @jillahamilton.bsky.social · 20/06/2025
Getting ready to go!! Beautiful center pieces courtesy of our PSU graduate students, @michellezavala.bsky.social and @krlopicc.bsky.social at #forestgenetics2025 How well do you know your trees? We’ll find out!! Counting down to welcome all to the Happy Valley!! forestgeneticsconference2025.com
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Jill Hamilton @jillahamilton.bsky.social · 16/06/2025
One week to go!!! So excited to host our colleagues next week in the Happy Valley of Pennsylvania! Over 150 registrants from around the world!! If you’re interested in coming but unable to join in person - email me to learn about virtual options forestgeneticsconference2025.com #forestgenetics2025
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Botanical Society of America @botsocamerica.bsky.social · 27/05/2025
🌼The 3rd episode of the BSA's new podcast---A Botanical Podcast!---is now available on all major streaming services!🌼 In this episode, @ehlawrence-paul.bsky.social discusses vegetative phase change in plants. www.buzzsprout.com/2446995/epis... #botany #plantscience #morphology #physiology
A graphic announcing the episode of A Botanical Podcast with Erica Lawrence-Paul.
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Reposted by Michelle Zavala-Paez
Jill Hamilton @jillahamilton.bsky.social · 22/05/2025
Super excited for the first manuscript #NSFFunded led by the very talented @alaynamead.bsky.social from our #PopUpPoplar common gardens spanning 17 environments across the US that examined fitness variation and predicted range shifts for hybrids to new environments www.biorxiv.org/content/10.1...
biorxiv.org
Variation in responses to temperature across admixed genotypes of Populus trichocarpa x P. balsamifera predict geographic shifts in regions where hybrids are favored
In a rapidly changing environment, predicting changes in the growth and survival of local populations can inform conservation and management. Plastic responses vary as a result of genetic differentiat...
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Sally Aitken 🇨🇦 @sallyaitken.bsky.social · 08/05/2025
Great news - we will be searching for a tree physiologist (tenure track) to join the Department of Forest and Conservation Sciences, UBC Forestry, later this year. Stay tuned! (Please share.)
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