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Items tagged with: parasites

How a #parasite gave up sex to find more hosts—and why its victory won't last phys.org/news/2026-01-parasite…

Host range expansion of asexual parasite can be explained by loss of adaptions in Muller’s Ratchet nature.com/articles/s41467-025…

"an asexual lineage of #Giardia managed to infect a wider range of hosts than its sexual ancestor... at a cost. Because these #parasites don't exchange genetic material, harmful mutations build up over time, leading to eventual collapse"

#Protists #Microbes #Evolution

electron microscopy picture of a microbial cell with multiple flagella

How a parasite 'gave up sex' to find more hosts—and why its victory won't last

Australian researchers have uncovered how a particular strain of a diarrhea-causing parasite managed to infect more animal species, offering new insights into how parasitic infections emerge and spread to people.
Walter and Eliza Hall Institute (Phys.org)
#Evolution #protists #microbes #parasites #parasite #giardia

New #ISEPpapers! Updated classification of the phylum Parabasalia onlinelibrary.wiley.com/doi/fu…

"Most are harmless or beneficial gut #symbionts of #animals, but some have turned into #parasites in other body compartments, the most notorious example being #Trichomonas vaginalis in humans."

#protists #microbes #symbiosis #evolution #biology

schematic evolutionary tree of a group of microbes
#animals #Evolution #biology #protists #symbiosis #symbionts #microbes #iseppapers #parasites #trichomonas

New #ISEPpapers! Contractile vacuoles: a rapidly expanding (and occasionally diminishing?) understanding sciencedirect.com/science/arti… by Kiran More et al.

#protists #microbes #organelles #biology #evolution #algae #parasites

simplified evolutionary tree of eukaryotes
#Evolution #biology #protists #microbes #algae #iseppapers #parasites #organelles

New #ISEPpapers #preprint! Insights from comparative plastid #genomics of colorless facultative pathogens #Prototheca (Chlorophyta): Unveiling membrane transport and organelle division as key functions biorxiv.org/content/10.1101/20… #protists #algae #parasites #microbes @biorxivpreprint
a plot showing presence or absence of many proteins across various microbial species
#protists #preprint #genomics #microbes #algae #iseppapers #parasites #prototheca @bioRxiv

Ant biologists thought the small, strangely-shaped Manica parasitica from the Sierra Nevada was a social parasite of another ant species, but the truth is even stranger.

#Ants #Insects #Manica #Parasites

royalsocietypublishing.org/doi…

#insects #ants #parasites #Manica

New preprint! Proud to be part of this important study on the #genome of an African #snail vector that transmits #parasites causing #schistosomiasis, one of the most prevalent #NeglectedTropicalDiseases affecting >200 million people. I know, you've seen genome papers before, but wait there's more! We actually sequenced several inbred lines, allowing us to find and characterize highly variable genes of possible immune relevance.
🐌🧬🐌🧬🐌🧬🐌🧬🐌🧬
biorxiv.org/content/10.1101/20…

The genome and transcriptome of the snail Biomphalaria sudanica s.l.: Immune gene diversification and highly polymorphic genomic regions in an important African vector of Schistosoma mansoni

Background Control and elimination of schistosomiasis is an arduous task, with current strategies proving inadequate to break transmission.
bioRxiv
#snail #genome #parasites #neglectedtropicaldiseases #schistosomiasis

Organisms use a range of defense systems against #parasites. Using a #bacteria-#phage model system, @drbridgetwatson @edzewestra &co ask what drives the transient evolution of different systems; implications for #HostEcology & #pathogenicity #PLOSBiology plos.io/3LoFSoM

Transient eco-evolutionary dynamics early in a phage epidemic have strong and lasting impact on the long-term evolution of bacterial defences

Organisms use a range of defence systems to protect against their parasites. Using a bacteria-phage model system, we investigate what drives the transient evolution of different systems, which has important implications for host ecology and pathogeni…
plos.io
#bacteria #plosbiology #phage #pathogenicity #hostecology #parasites

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