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Items tagged with: Evolution
Happy to share the latest manuscript from our lab, in which we propose that eukaryotes evolved from a genomic chimera of Asgard archaea and giant viruses.
https://www.biorxiv.org/content/10.1101/2024.04.22.590592v1
This is a controversial topic, but we believe we have strong evidence to suggest a critical viral role in eukaryogenesis.
#viruses #protists #eukaryotes #evolution #TreeOfLIfe #archaea
Chimeric Origin of Eukaryotes from Asgard Archaea and Ancestral Giant Viruses
The details surrounding the evolution of complex cells remain some of the most enduring mysteries in biology.bioRxiv
Scientists have caught a once-in-a-billion-years evolutionary event in progress, as two lifeforms have merged into one organism that boasts abilities its peers would envy. Last time this happened, Earth got plants. The #algae Braarudosphaera bigelowii has been found to have absorbed a #cyanobacteria called UCYN-A, which may be a huge step forward for #evolution.
https://newatlas.com/biology/life-merger-evolution-symbiosis-organelle/
Two lifeforms merge in once-in-a-billion-years evolutionary event
Scientists have discovered that a once-in-a-billion-years evolutionary event is underway, as two lifeforms have merged into one organism that boasts abilities its peers would envy. Last time this happened, Earth got plants.Michael Irving (New Atlas)
Interested in evolutionary genomics/population genomics and plant genetics? Want to do your PhD in beautiful Stockholm?
We have two 4-year PhD student positions available in my group at Stockholm University. More info, see tanjaslottelab.se
Please repost.
#evolution #genomics #popgen #distyly #CropWildRelatives #PlantGenetics #ecrchat #phd 1/4
Upper Cretaceous. Approximately 100.5 million to 66 million years ago. When alive, this creature lived in warm, shallow seas and had a very short tail, which was fitted with a venomous stinger. Discovered in Haqil, Byblos, Lebanon. It just happens to look like an ancient space alien. #science #fossil #archeology #evolution #photo #nature #biology #wildlife
The Simons Foundation has amazing #postdoc #fellowships for anyone interested in #marine microbial #ecology or #evolution.
I'd love to sponsor anyone interested in viral diversity!
Please spread the word!
Simons Postdoctoral Fellowships in Marine Microbial Ecology | Simons Foundation
The Simons Foundation invites applications for postdoctoral fellowships to support candidates who intend to pursue a career in basic research on fundamental problems in marine microbial ecology, with an emphasis on understanding the role of microorga…Simons Foundation
Looking for some suggestions - I'm working with Archaeal genomic regions whose optimally fitting model seems to be Tamura-Nei (https://doi.org/10.1093/oxfordjournals.molbev.a040023).
Would it be too much to suspect the Archaeal region is under similar types of evolutionary pressure?
#archaea #microbiology #evolution #phylogenetics #bioinformatics
What's a species? How do we define biological diversity - BioAudio
What is a species? A simple question that just about anyone can answer, and yet has been the source of endless debate for decades. Biological diversity just doesn't fit in nice neat little boxes no matter how much we search for a universal s...Buzzsprout
Journal of Systematics and Evolution is on Mastodon (as I just discovered). If you're a plant scientist or just interested in #Botany and #Evolution, give it a follow!
@JSE
Boost to relieve those who live in #Planticipation!
@plantscience
Evolution is not as random as previously thought, finds new study
A new study has found that evolution is not as unpredictable as previously thought, which could allow scientists to explore which genes could be useful to tackle real-world issues such as antibiotic resistance, disease, and climate change.Science X (Phys.org)
Single-celled #protists in the #guts of #animals thrive without #mitochondria, study finds.
#oxymonads #evolution #phylogenomics
https://phys.org/news/2023-12-single-celled-protists-guts-animals-mitochondria.html
Single-celled protists in the guts of animals thrive without mitochondria, study finds
Almost all eukaryotic organisms, from plants and animals to fungi, can't survive without mitochondria, which generate chemical energy using oxygen.Science X (Phys.org)
Come work with me! My research unit at the University of Namur is hiring a #tenure track position in #ecology and #ecophysiology
I'm happy to answer any questions about working here!
New species concept just dropped ... no, wait, it actually seems useful. Wayne Maddison & Jeannette Whitton published in @SystBiol's #DiamondOA BSSB so it's free to read and free to authors. Even if the concept itself doesn't take off, I think lots of lectures are going to use the figures and ideas.
https://ssbbulletin.org/index.php/bssb/article/view/9358
#Systematics #SpeciesConcepts #Evolution #Conservation #OpenAccess
The Species as a Reproductive Community Emerging From the Past
Biologists and philosophers of science have been unable to fully resolve the decades-long controversy as to what kind of unit of living biodiversity should receive the valued label “species”: reproductive communities (among sexual organisms), genealo…ssbbulletin.org
Happy to share our latest paper, in which we examined the timing at which different microbial groups colonized the ocean!
The first author (Carolina Martinez) is starting her lab at UC Santa Barbara in 2024 and is looking to recruit postdocs and PhD students, so if this looks interesting to you, please reach out to her!
A timeline of bacterial and archaeal diversification in the ocean
https://elifesciences.org/articles/88268
#microbiology #ocean #marine #evolution
A timeline of bacterial and archaeal diversification in the ocean
Phylogenomics reveals the timeline over which marine bacteria and archaea colonized the oceans and shows the geological context of their diversification.Carolina A Martinez-Gutierrez (eLife Sciences Publications, Ltd)
Ongoing shuffling of protein fragments diversifies core viral functions linked to interactions with bacterial hosts
https://www.nature.com/articles/s41467-023-43236-9
#phages #viruses #evolution #genomics
Ongoing shuffling of protein fragments diversifies core viral functions linked to interactions with bacterial hosts - Nature Communications
Proteins are composed of distinct functional domains, each serving a specific role. Here, Smug et al. show that phages are able to shuffle fragments of their proteins and this predominantly occurs in proteins involved in bacterial host interactions.Nature
Postdoctoral Fellow in Phylogenomics/Bioinformatics
#academicjobs #postdocjobs #genomics #evolution #microbiology
https://jobrxiv.org/job/uc-santa-barbara-27778-postdoctoral-fellow-in-phylogenomics-bioinformatics/
Postdoctoral Fellow in Phylogenomics/Bioinformatics
Post a job in 3min, or find thousands of job offers like this one at jobRxiv!jobRxiv
PhD position in viral evolution and diversity @foaylward
Virginia Tech
Funded PhD positions in the Aylward Lab to study the #evolution and #genomics of giant #viruses. Both computational and wet-lab projects available.
See the full job description on jobRxiv: https://jobrxiv.org/job/virginia-tech-27778-funded-phd-position/?feed_id=64662
#ScienceJobs #hiring #research
Blacksburg #UnitedStatesUS ...
https://jobrxiv.org/job/virginia-tech-27778-funded-phd-position/?feed_id=64662
PhD position in viral evolution and diversity
Post a job in 3min, or find thousands of job offers like this one at jobRxiv!jobRxiv
A new episode of the EMBO podcast is out. I spoke with Hsiao-Han Chang, Gytis Dudas, and Hedvig Tamman about viruses, hosts, spillovers, public health... And also starting a new lab, the challenges of mobility, mentorship, and Die Hard Dracula.
#EMBOPodcast #scicomm #SciencePodcast #Virology #Evolution #Microbiology
It’s viruses all the way down: a conversation with Hsiao-Han Chang, Gytis Dudas, and Hedvig Tamman –
As COVID-19 and flu season descends, we talk with three new research group leaders who work on host-virus interactions.Thiago Carvalho (EMBO)
The name is Costa, James Costa; or, how The Inquisitive Biologist is getting ready for a #Wallace triptych. Reviews coming soon to https://inquisitivebiologist.com
@princetonupress @princetonnature
#Books #BookReview #Bookstodon #Evolution #HistoryOfScience #ScienceHistory #HistSci #Scicomm
#PhD positions available in my group for Fall 2024 - projects focusing on #GiantVirus diversity and #evolution. Opportunities for both molecular wet-lab and #bioinformatics research.
The lab is fun, supportive, and inclusive, and we have many cool new viruses we are studying, so come join us!
Please boost and spread the word!
https://jobrxiv.org/job/virginia-tech-27778-funded-phd-position/
PhD position in viral evolution and diversity
Post a job in 3min, or find thousands of job offers like this one at jobRxiv!jobRxiv
For a new week: I dug into the history of a definition I’ve used my entire career, and discovered… we may not need it?
Don’t ask “When is it coevolution?” — ask “How is it coevolution?”
https://www.molecularecologist.com/2023/10/13/when-coevolution-definition-history/
Don’t ask “When is it coevolution?” — ask “How is it coevolution?”
A rough-skinned newt, Taricha granulosa, somewhere on the Marin headlands of California. Rough-skinned newts’ geographically varying arms race with predatory garter snakes has made them a cla…The Molecular Ecologist
Highlight: Unlocking the Ancient Origins of Cell Death
https://doi.org/10.1093/gbe/evad172
"They propose that early protoeukaryotes were predators, relying on bacterial prey. These bacteria, in response to predation, produced toxins as a defense mechanism. Over time, these bacteria were domesticated to serve as mitochondria within eukaryotic cells, and their toxins evolved into apoptotic factors. "
New blog post just dropped!
"Assembly theory is cool... but doesn't quite do what its inventors say it does."
http://www.johannesjaeger.eu/blog/assembly-theory-is-cool
reviewing this recent Nature paper:
https://www.nature.com/articles/s41586-023-06600-9
news & views here:
https://www.nature.com/articles/d41586-023-03061-y
#evolution #complexityscience #innovation #possibilityspace
Assembly Theory is Cool ...
Disclaimer: I am currently funded by the John Templeton Foundation (JTF). If you'd like to know more about my research project, you can find lots of information (and my book draft) here . I'm...Untethered in the Platonic Realm
'Both genomes had been analysed before, but the fragmented assemblies had scaffold sizes comparable to the length of long reads prior to assembly. Our new assemblies illustrate how long-read technologies allow for a much better representation of species genomes. We are now able to conduct more accurate downstream assays based on more complete gene and transposable element predictions.'
#Preprint #Evolution #Genomics
https://www.biorxiv.org/content/10.1101/2023.10.06.561169v1
Revisiting genomes of non-model species with long reads yields new insights into their biology and evolution
High-quality genomes obtained using long-read data allow not only for a better understanding of heterozygosity levels, repeat content, and more accurate gene annotation, and prediction when compared to those obtained with short-read technologies, but…bioRxiv
Encyclopaedia of DNA polymerases localized in organelles: Evolutionary contribution of diverse bacteria including the proto-mitochondrion
DNA polymerases (DNAPs) synthesize DNA from deoxyribonucleotides in a semi-conservative manner and serve as the core of DNA replication and repair machineries.bioRxiv
How did #eukaryotes evolve for extreme temps? https://www.futurity.org/high-temp-eukaryotes-2972442-2/ #protists
#ExtremeEnvironments offer an unprecedented opportunity to understand #microbial #eukaryotic #ecology, #evolution, and #genome #biology: Hannah Rappaport & Angela Oliverio https://www.nature.com/articles/s41467-023-40657-4
“several lineages of #amoebae were often recovered from extremely high temperature environments. Studying those lineages may yield great insight into how eukaryotic cells can adapt to life in extremely hot environments.”
How did eukaryotes evolve for extreme temps? - Futurity
Researchers are investigating microbial eukaryotic life in extreme environments, like Lassen National Park's geothermal lake.Dan Bernardi-Syracuse (Futurity)
This was a fun way to spend my lunch break (full disclosure - I am married to one of the developers).
Look out for it - it will be traveling round the US to libraries and museums
#VENOMventure #aVENENOtura #EscapeRoom #bilingual #evolution
KU Natural History Museum to host VENOMventure
Museum will host educational escape room game Aug. 8-27The University of Kansas
Something weird's going on with the Google Scholar index. I just went looking for Janzen (1980) and got ... a paper in Ecological Economics as the top result? And when I forced it to find the canonical paper, it only gave me citations to it?
Did @sse_evolution's move to OUP somehow break the journal's representation in Google Scholar?
I'm wanting to incorporate some #Rstats in my university #Evolution class so that students learn/reinforce some R skills while increasing their understanding of evolution. I did an internet search and found next to nothing:
Too advanced:
https://www.mimuw.edu.pl/~lukaskoz/teaching/sad2/books/Analysis_of_Phylogenetics_and_Evolution_with_R.pdf
Interesting, but pretty limited in what it does:
https://onlinelibrary.wiley.com/doi/10.1002/ece3.5412
Any recommendations?
Hi! I’m Djigr, evolutionary #biologist, #paleontologist , #artist and published #paleoartist ! I work on various subjects such as #temnospondyls (#crocofrogs from the past) and 3D molecular structure prediction by AI.
I do #scicom and #sciart on feathered #dinosaurs and #evolution, am known for my fake TV journal #CROW+ that teaches about #crow biology!
I’m a co-founder of Chicken Wings Dinosaurs, which produces cute and cool paleoart
😀👋
Scientists discover how parasites of #viruses drive #superbug #evolution.
#phages #gene_transfer #lateral_transduction
https://phys.org/news/2023-08-scientists-parasites-viruses-superbug-evolution.html
Scientists discover how parasites of viruses drive superbug evolution
In a study published in Cell, scientists from the National University of Singapore (NUS) and Imperial College London have discovered a new way by which bacteria transmit their genes, enabling them to evolve much faster than previously understood.Science X (Phys.org)
Isn’t it incredible to live on the same planet where this magnificent, ancient shark once grew up to 65 ft (20m)? 🦈
The massive megalodon swam Earth’s ocean for millions of years.
Funny how many folks mistakenly believe humans are some kind of pinnacle of #evolution. We literally just arrived a few hundred thousand years ago. #science #history
https://www.wur.nl/en/vacancy/phd-researcher-in-bioinformatics-investigating-protein-evolution-using-machine-learning.htm
#PhD #PhDPosition #Evolution #Genomics #ProteinStructure #MachineLearning