Mahwash Jamy
@mjamy.bsky.social
Evolutionary biologist interested in protist diversity and evolution. Postdoc at Swedish University of Agricultural Sciences.
Pinned
Mahwash Jamy
@mjamy.bsky.social
· Sep 3
Hello there 🦋
Happy to share our piece "Towards a trait-based framework for protist ecology and evolution" in @cp-trendsmicrobiol.bsky.social
Let's build a unified trait 📏 database to unlock transformative insights into protist 🔬 ecology 🌍 and evolution ⏳
▶️ doi.org/10.1016/j.ti...
#protistsonsky
Happy to share our piece "Towards a trait-based framework for protist ecology and evolution" in @cp-trendsmicrobiol.bsky.social
Let's build a unified trait 📏 database to unlock transformative insights into protist 🔬 ecology 🌍 and evolution ⏳
▶️ doi.org/10.1016/j.ti...
#protistsonsky
Check out our new paper on adopting a trait-based framework for protist diversity! We make the case for a unified protist trait database, how to build it, and how it could transform research on protist ecology and evolution.
#protistsonsky
#protistsonsky
Wound healing is a hallmark feature of all life, including single cells. In a new preprint, Ambika Nadkarni @biochembika.bsky.social investigates a new dimension in cellular wound healing: how cells recover AFTER the wound has been closed
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
November 10, 2025 at 9:53 PM
Reposted by Mahwash Jamy
Excited to share our new preprint on BioRxiv!
A collaborative effort spanning many years and several labs to uncover what the germline chromosomes of Paramecium really look like. 🔗 www.biorxiv.org/content/10.1...
1/5
A collaborative effort spanning many years and several labs to uncover what the germline chromosomes of Paramecium really look like. 🔗 www.biorxiv.org/content/10.1...
1/5
The tiny germline chromosomes of Paramecium aurelia have an exceptionally high recombination rate and are capped by a new class of Helitrons
Background. Paramecia belong to the ciliate phylum of unicellular eukaryotes characterized by nuclear dimorphism. A diploid germline micronucleus (MIC) transmits genetic information across sexual gene...
www.biorxiv.org
November 10, 2025 at 9:21 AM
Excited to share our new preprint on BioRxiv!
A collaborative effort spanning many years and several labs to uncover what the germline chromosomes of Paramecium really look like. 🔗 www.biorxiv.org/content/10.1...
1/5
A collaborative effort spanning many years and several labs to uncover what the germline chromosomes of Paramecium really look like. 🔗 www.biorxiv.org/content/10.1...
1/5
Reposted by Mahwash Jamy
Huge paper for the Arctic Ocean published today in @science.org - a new 30,000 year history of Arctic Ocean sea-ice cover reconstructed from the accumulation of cosmic dust-derived helium-3! www.science.org/doi/10.1126/... (1/n)
Cosmic dust reveals dynamic shifts in central Arctic sea-ice coverage over the past 30,000 years
Arctic sea-ice loss affects biological productivity, sustenance in coastal communities, and geopolitics. Forecasting these impacts requires mechanistic understanding of how Arctic sea ice responds to ...
www.science.org
November 7, 2025 at 1:08 AM
Huge paper for the Arctic Ocean published today in @science.org - a new 30,000 year history of Arctic Ocean sea-ice cover reconstructed from the accumulation of cosmic dust-derived helium-3! www.science.org/doi/10.1126/... (1/n)
Reposted by Mahwash Jamy
Oligonucleotide design meets big data:
We present oligoN-design, a simple, reproducible and versatile open-source tool to design specific primers and probes directly from large environmental DNA datasets.
🔗 DOI: doi.org/10.1101/2025...
👉 github.com/MiguelMSandi...
We present oligoN-design, a simple, reproducible and versatile open-source tool to design specific primers and probes directly from large environmental DNA datasets.
🔗 DOI: doi.org/10.1101/2025...
👉 github.com/MiguelMSandi...
November 7, 2025 at 12:54 PM
Oligonucleotide design meets big data:
We present oligoN-design, a simple, reproducible and versatile open-source tool to design specific primers and probes directly from large environmental DNA datasets.
🔗 DOI: doi.org/10.1101/2025...
👉 github.com/MiguelMSandi...
We present oligoN-design, a simple, reproducible and versatile open-source tool to design specific primers and probes directly from large environmental DNA datasets.
🔗 DOI: doi.org/10.1101/2025...
👉 github.com/MiguelMSandi...
Reposted by Mahwash Jamy
🌊 By 2100, Arctic phytoplankton blooms will start ~34 days earlier, last ~15 days longer, and become less dominant overall, as warming reduces the seasonality of ocean productivity
Climate change is rapidly reshaping the timing and importance of Arctic productivity
www.nature.com/articles/s43...
Climate change is rapidly reshaping the timing and importance of Arctic productivity
www.nature.com/articles/s43...
End-of-century Arctic Ocean phytoplankton blooms start a month earlier due to anthropogenic climate change - Communications Earth & Environment
Anthropogenic climate change impacts Arctic Ocean phytoplankton phenology, resulting in phytoplankton blooms which start 34 days earlier and last 15 days longer in 2100 compared with 1970, according t...
www.nature.com
November 6, 2025 at 5:38 PM
🌊 By 2100, Arctic phytoplankton blooms will start ~34 days earlier, last ~15 days longer, and become less dominant overall, as warming reduces the seasonality of ocean productivity
Climate change is rapidly reshaping the timing and importance of Arctic productivity
www.nature.com/articles/s43...
Climate change is rapidly reshaping the timing and importance of Arctic productivity
www.nature.com/articles/s43...
Reposted by Mahwash Jamy
Do you teach #rstats? Do your students complain about how lame and old-fashioned dplyr is? Don't worry: I have the solution for you: github.com/hadley/genzp....
genzplyr is dplyr, but bussin fr fr no cap.
genzplyr is dplyr, but bussin fr fr no cap.
GitHub - hadley/genzplyr: dplyr but make it bussin fr fr no cap
dplyr but make it bussin fr fr no cap. Contribute to hadley/genzplyr development by creating an account on GitHub.
github.com
November 6, 2025 at 11:25 PM
Do you teach #rstats? Do your students complain about how lame and old-fashioned dplyr is? Don't worry: I have the solution for you: github.com/hadley/genzp....
genzplyr is dplyr, but bussin fr fr no cap.
genzplyr is dplyr, but bussin fr fr no cap.
Reposted by Mahwash Jamy
📣 Open position:
We are looking for a new #ScientificLead for the #SILVA database 🧬🖥️, who will be responsible for guiding the development of this important resource and for curating the #SILVA taxonomy🌳.
Read and share!
👉 www.dsmz.de/dsmz/career/...
🧪🦠🌱🦋💽
We are looking for a new #ScientificLead for the #SILVA database 🧬🖥️, who will be responsible for guiding the development of this important resource and for curating the #SILVA taxonomy🌳.
Read and share!
👉 www.dsmz.de/dsmz/career/...
🧪🦠🌱🦋💽
October 31, 2025 at 5:41 PM
📣 Open position:
We are looking for a new #ScientificLead for the #SILVA database 🧬🖥️, who will be responsible for guiding the development of this important resource and for curating the #SILVA taxonomy🌳.
Read and share!
👉 www.dsmz.de/dsmz/career/...
🧪🦠🌱🦋💽
We are looking for a new #ScientificLead for the #SILVA database 🧬🖥️, who will be responsible for guiding the development of this important resource and for curating the #SILVA taxonomy🌳.
Read and share!
👉 www.dsmz.de/dsmz/career/...
🧪🦠🌱🦋💽
Reposted by Mahwash Jamy
Check out our new insect decline paper. By analysing 36 yrs of German ground beetle distribution data, we show:
- ~80% of species have declined, with significant declines for >50%.
- The decline was similar across species traits and threatened status.
doi.org/10.1111/ddi.... @consbiog.bsky.social
- ~80% of species have declined, with significant declines for >50%.
- The decline was similar across species traits and threatened status.
doi.org/10.1111/ddi.... @consbiog.bsky.social
November 3, 2025 at 1:38 AM
Check out our new insect decline paper. By analysing 36 yrs of German ground beetle distribution data, we show:
- ~80% of species have declined, with significant declines for >50%.
- The decline was similar across species traits and threatened status.
doi.org/10.1111/ddi.... @consbiog.bsky.social
- ~80% of species have declined, with significant declines for >50%.
- The decline was similar across species traits and threatened status.
doi.org/10.1111/ddi.... @consbiog.bsky.social
Reposted by Mahwash Jamy
The Lost Art of Scientific Illustration: Yoshine Hada's illustrations of dinoflagellates in Kofoid, C.A. 1931. Protozoan Fauna of Mutsu Bay. Subclass Dinoflagellata, Tribe Gymnodinioidae. Sci. Rpts Tohoku Imperial Univ, 4th Ser., Biology, Vol. VI, No. 1, pp 1-43.
November 2, 2025 at 3:29 PM
The Lost Art of Scientific Illustration: Yoshine Hada's illustrations of dinoflagellates in Kofoid, C.A. 1931. Protozoan Fauna of Mutsu Bay. Subclass Dinoflagellata, Tribe Gymnodinioidae. Sci. Rpts Tohoku Imperial Univ, 4th Ser., Biology, Vol. VI, No. 1, pp 1-43.
Reposted by Mahwash Jamy
Detecting Introgression in Shallow Phylogenies: How Minor Molecular Clock Deviations Lead to Major Inference Errors academic.oup.com/mbe/article/...
Detecting Introgression in Shallow Phylogenies: How Minor Molecular Clock Deviations Lead to Major Inference Errors
Abstract. Recent theoretical and algorithmic advances in introgression detection, coupled with the growing availability of genome-scale data, have highligh
academic.oup.com
November 1, 2025 at 4:32 PM
Detecting Introgression in Shallow Phylogenies: How Minor Molecular Clock Deviations Lead to Major Inference Errors academic.oup.com/mbe/article/...
Reposted by Mahwash Jamy
🚨Our collaboration with @centriolelab.bsky.social & @gautamdey.bsky.social is out today in @cp-cell.bsky.social
We show that #Expansion #Microscopy is a broad-spectrum modality for Euks, enabling 3D phenotypic maps rooted to phylogeny.
#ProtistsOnSky #SciComm #SciSky
www.cell.com/cell/fulltex...
We show that #Expansion #Microscopy is a broad-spectrum modality for Euks, enabling 3D phenotypic maps rooted to phylogeny.
#ProtistsOnSky #SciComm #SciSky
www.cell.com/cell/fulltex...
October 31, 2025 at 2:42 PM
🚨Our collaboration with @centriolelab.bsky.social & @gautamdey.bsky.social is out today in @cp-cell.bsky.social
We show that #Expansion #Microscopy is a broad-spectrum modality for Euks, enabling 3D phenotypic maps rooted to phylogeny.
#ProtistsOnSky #SciComm #SciSky
www.cell.com/cell/fulltex...
We show that #Expansion #Microscopy is a broad-spectrum modality for Euks, enabling 3D phenotypic maps rooted to phylogeny.
#ProtistsOnSky #SciComm #SciSky
www.cell.com/cell/fulltex...
Reposted by Mahwash Jamy
Exciting day for the lab: our 1rst paper is officially out in @currentbiology.bsky.social 🥳 Wonderful collaboration wt @gautamdey.bsky.social showing how Cryo-ExM achieves consistent immunostaining in diverse diatoms, from the lab and the natural environment 1/n
#ProtistsOnSky
tinyurl.com/2zxaund7
#ProtistsOnSky
tinyurl.com/2zxaund7
October 31, 2025 at 3:27 PM
Exciting day for the lab: our 1rst paper is officially out in @currentbiology.bsky.social 🥳 Wonderful collaboration wt @gautamdey.bsky.social showing how Cryo-ExM achieves consistent immunostaining in diverse diatoms, from the lab and the natural environment 1/n
#ProtistsOnSky
tinyurl.com/2zxaund7
#ProtistsOnSky
tinyurl.com/2zxaund7
Reposted by Mahwash Jamy
📢 We have an open position for a postdoc to join my lab. It's a great position @animecol-uu.bsky.social, fully salaried for 2.5 years with all benefits.
www.uu.se/en/about-uu/...
The project is about transmission patterns of bacteria and antimicrobial resistance (AMR) in aquatic insects. 🧬🦠 (1/3)
www.uu.se/en/about-uu/...
The project is about transmission patterns of bacteria and antimicrobial resistance (AMR) in aquatic insects. 🧬🦠 (1/3)
Postdoctoral researcher in molecular ecology - Uppsala University
Postdoctoral researcher in molecular ecology, Department of Ecology and Genetics, Uppsala University
www.uu.se
October 27, 2025 at 7:43 AM
📢 We have an open position for a postdoc to join my lab. It's a great position @animecol-uu.bsky.social, fully salaried for 2.5 years with all benefits.
www.uu.se/en/about-uu/...
The project is about transmission patterns of bacteria and antimicrobial resistance (AMR) in aquatic insects. 🧬🦠 (1/3)
www.uu.se/en/about-uu/...
The project is about transmission patterns of bacteria and antimicrobial resistance (AMR) in aquatic insects. 🧬🦠 (1/3)
Thirty novel fungal lineages: formal description based on environmental samples and DNA mycokeys.pensoft.net/articles.php...
Thirty novel fungal lineages: formal description based on environmental samples and DNA
Molecular analyses of soil and water commonly reveal large proportions of fungal taxa that cannot be assigned to any taxonomic or functional groups. Some of these so-called dark taxa have been encoded...
mycokeys.pensoft.net
October 30, 2025 at 1:38 PM
Thirty novel fungal lineages: formal description based on environmental samples and DNA mycokeys.pensoft.net/articles.php...
Reposted by Mahwash Jamy
Please join us next week for the second iteration of the DinoSphere Seminars! This time our two speakers will talk about host-associated dinoflagellates and any challenges they might have encountered when working with them. All current and future friends of dinoflagellates welcome!
#ProtistsOnSky
#ProtistsOnSky
We’re back with the next DinoSphere Online Seminar!
Join us on Nov 4th, we're hosting:
Edmée Royen (ULiège) - Symbiodinium
Nicolas dos Santos Pacheco (Cambridge) - Perkinsids
📅 Tue, Nov 4 - 4 PM CET/3 PM GMT
💻 Zoom link: sites.google.com/view/dinosphere
Please spread the word!
#protistonsky
Join us on Nov 4th, we're hosting:
Edmée Royen (ULiège) - Symbiodinium
Nicolas dos Santos Pacheco (Cambridge) - Perkinsids
📅 Tue, Nov 4 - 4 PM CET/3 PM GMT
💻 Zoom link: sites.google.com/view/dinosphere
Please spread the word!
#protistonsky
October 29, 2025 at 9:19 AM
Please join us next week for the second iteration of the DinoSphere Seminars! This time our two speakers will talk about host-associated dinoflagellates and any challenges they might have encountered when working with them. All current and future friends of dinoflagellates welcome!
#ProtistsOnSky
#ProtistsOnSky
Reposted by Mahwash Jamy
New version of PR2 that now includes the eKOI coi database recently published.
Version 5.1.1 of the PR2 database has been released.
The major novelty is the inclusion of the recently published eKOI database (coi gene- doi.org/10.1093/data...) in the web interface. The 18S rRNA database is not changed so you can use 5.1.0 or 5.1.1 for metabarcode annotations
The major novelty is the inclusion of the recently published eKOI database (coi gene- doi.org/10.1093/data...) in the web interface. The 18S rRNA database is not changed so you can use 5.1.0 or 5.1.1 for metabarcode annotations
A novel taxonomic database for eukaryotic mitochondrial cytochrome oxidase subunit I gene (eKOI), with a focus on protists diversity
Abstract. Metabarcoding has emerged as a robust method for assessing biodiversity patterns by retrieving environmental DNA directly from ecosystems. While
doi.org
October 28, 2025 at 9:11 AM
New version of PR2 that now includes the eKOI coi database recently published.
Reposted by Mahwash Jamy
Our review is out in Nature Reviews Genetics! rdcu.be/d5AY2
We show how phylogeny-based methods can resolve the problem of non-independence in genomic datasets.
These methods must be considered an essential part of the comparative genomics toolkit.
@lauriebelch.bsky.social @stuwest.bsky.social
We show how phylogeny-based methods can resolve the problem of non-independence in genomic datasets.
These methods must be considered an essential part of the comparative genomics toolkit.
@lauriebelch.bsky.social @stuwest.bsky.social
A phylogenetic approach to comparative genomics
Nature Reviews Genetics - Controlling for phylogeny is essential in comparative genomics studies, because species, genomes and genes are not independent data points within statistical tests. The...
rdcu.be
January 8, 2025 at 1:19 PM
Our review is out in Nature Reviews Genetics! rdcu.be/d5AY2
We show how phylogeny-based methods can resolve the problem of non-independence in genomic datasets.
These methods must be considered an essential part of the comparative genomics toolkit.
@lauriebelch.bsky.social @stuwest.bsky.social
We show how phylogeny-based methods can resolve the problem of non-independence in genomic datasets.
These methods must be considered an essential part of the comparative genomics toolkit.
@lauriebelch.bsky.social @stuwest.bsky.social
Reposted by Mahwash Jamy
New results from our lab: Polyploidization in diatoms accelerates adaptation to warming. Nat. Clim. Chang. (2025). doi.org/10.1038/s415...
Polyploidization in diatoms accelerates adaptation to warming - Nature Climate Change
The authors obtained large-volume individuals of diatom cultures under thermal stress. These polyploids (having more than two sets of chromosomes) are shown to rapidly adapt to high temperatures, high...
doi.org
October 26, 2025 at 8:28 AM
New results from our lab: Polyploidization in diatoms accelerates adaptation to warming. Nat. Clim. Chang. (2025). doi.org/10.1038/s415...
Reposted by Mahwash Jamy
When continents became a thing, they might have changed the ocean in a fundamental way. All those minerals being eroded and turning into dissolved ions, which found their way into the ocean, where alkalinity and pH subsequently increase. 🧪⚒️
Link: www.nature.com/articles/s41...
Link: www.nature.com/articles/s41...
October 26, 2025 at 8:20 AM
When continents became a thing, they might have changed the ocean in a fundamental way. All those minerals being eroded and turning into dissolved ions, which found their way into the ocean, where alkalinity and pH subsequently increase. 🧪⚒️
Link: www.nature.com/articles/s41...
Link: www.nature.com/articles/s41...
Reposted by Mahwash Jamy
New paper by Ella Thoen et al. on the enigmatic Archaeorhizomycetes:
Short- and long-read metabarcoding of Archaeorhizomycetes
reveals high phylogenetic diversity structured by vegetation
and climate
nph.onlinelibrary.wiley.com/doi/epdf/10....
Short- and long-read metabarcoding of Archaeorhizomycetes
reveals high phylogenetic diversity structured by vegetation
and climate
nph.onlinelibrary.wiley.com/doi/epdf/10....
nph.onlinelibrary.wiley.com
October 21, 2025 at 9:00 AM
New paper by Ella Thoen et al. on the enigmatic Archaeorhizomycetes:
Short- and long-read metabarcoding of Archaeorhizomycetes
reveals high phylogenetic diversity structured by vegetation
and climate
nph.onlinelibrary.wiley.com/doi/epdf/10....
Short- and long-read metabarcoding of Archaeorhizomycetes
reveals high phylogenetic diversity structured by vegetation
and climate
nph.onlinelibrary.wiley.com/doi/epdf/10....
Reposted by Mahwash Jamy
“Is academic research becoming too competitive?”
Alternative framing:
“Is academic research becoming too unsupported?”
The former suggests the blame is on the researchers. The latter highlights underlying causes.
www.nature.com/articles/d41...
Alternative framing:
“Is academic research becoming too unsupported?”
The former suggests the blame is on the researchers. The latter highlights underlying causes.
www.nature.com/articles/d41...
Is academic research becoming too competitive? Nature examines the data
Applications for European research grants increased in 2025. Scientists say they’re feeling the competition.
www.nature.com
October 18, 2025 at 3:17 PM
“Is academic research becoming too competitive?”
Alternative framing:
“Is academic research becoming too unsupported?”
The former suggests the blame is on the researchers. The latter highlights underlying causes.
www.nature.com/articles/d41...
Alternative framing:
“Is academic research becoming too unsupported?”
The former suggests the blame is on the researchers. The latter highlights underlying causes.
www.nature.com/articles/d41...
Reposted by Mahwash Jamy
Genome maintenance by telomerase is a fundamental process in nearly all eukaryotes. But where does it come from?
Today, we report the discovery of telomerase homologs in a family of antiviral reverse transcriptases, revealing an unexpected evolutionary origin in bacteria.
doi.org/10.1101/2025...
Today, we report the discovery of telomerase homologs in a family of antiviral reverse transcriptases, revealing an unexpected evolutionary origin in bacteria.
doi.org/10.1101/2025...
October 17, 2025 at 12:47 PM
Genome maintenance by telomerase is a fundamental process in nearly all eukaryotes. But where does it come from?
Today, we report the discovery of telomerase homologs in a family of antiviral reverse transcriptases, revealing an unexpected evolutionary origin in bacteria.
doi.org/10.1101/2025...
Today, we report the discovery of telomerase homologs in a family of antiviral reverse transcriptases, revealing an unexpected evolutionary origin in bacteria.
doi.org/10.1101/2025...
Reposted by Mahwash Jamy
Excited to share our new paper where we find that the rise, decline and fall of clades is not explained by the usual suspects (diversity-dependence, ecological opportunities) but rather by species' insidious loss of macroevolutionary fitness: www.nature.com/articles/s41... 1/3
Loss of macroevolutionary species fitness explains the rise and fall of clades - Nature Ecology & Evolution
The interplay between speciation and extinction rates shapes clade diversity dynamics. Using a novel phylogenetic model that includes living and fossil lineages, the authors estimate speciation and ex...
www.nature.com
October 17, 2025 at 9:12 AM
Excited to share our new paper where we find that the rise, decline and fall of clades is not explained by the usual suspects (diversity-dependence, ecological opportunities) but rather by species' insidious loss of macroevolutionary fitness: www.nature.com/articles/s41... 1/3
Reposted by Mahwash Jamy
Interested in how microbial #diversity is structured across the global #oceans?
Check out our newest preprint!
We show that latitudinal diversity gradients are taxon-specific, reflecting differing ecological strategies and their responses to environmental gradients
www.biorxiv.org/content/10.1...
Check out our newest preprint!
We show that latitudinal diversity gradients are taxon-specific, reflecting differing ecological strategies and their responses to environmental gradients
www.biorxiv.org/content/10.1...
Variations in the latitudinal diversity gradients of the ocean microbiome
Latitudinal diversity gradients (LDGs), typically declining from the equator to the poles, are among the most pervasive macroecological patterns, yet their generality and underlying drivers in the oce...
www.biorxiv.org
October 14, 2025 at 6:08 AM
Interested in how microbial #diversity is structured across the global #oceans?
Check out our newest preprint!
We show that latitudinal diversity gradients are taxon-specific, reflecting differing ecological strategies and their responses to environmental gradients
www.biorxiv.org/content/10.1...
Check out our newest preprint!
We show that latitudinal diversity gradients are taxon-specific, reflecting differing ecological strategies and their responses to environmental gradients
www.biorxiv.org/content/10.1...
Reposted by Mahwash Jamy
Pretty excited to share our new preprint!
Non-photosynthetic Plastid Replacement by a Primary Plastid in the Making
www.biorxiv.org/content/10.1...
Non-photosynthetic Plastid Replacement by a Primary Plastid in the Making
www.biorxiv.org/content/10.1...
October 10, 2025 at 3:34 AM
Pretty excited to share our new preprint!
Non-photosynthetic Plastid Replacement by a Primary Plastid in the Making
www.biorxiv.org/content/10.1...
Non-photosynthetic Plastid Replacement by a Primary Plastid in the Making
www.biorxiv.org/content/10.1...