Katja Kasimatis
@katjakasimatis.bsky.social
Assistant Professor at UVA | Kasimatis Lab: Evolutionary Genomics of Sexual Conflict | she/her/hers
https://conflictgenomics.com
https://conflictgenomics.com
Reposted by Katja Kasimatis
#AcademicSky
The University of Virginia and Cornell deals with Trump could reshape academic freedom and federal oversight, writes The Guardian today
The University of Virginia and Cornell deals with Trump could reshape academic freedom and federal oversight, writes The Guardian today
The University of Virginia and Cornell deals with Trump set a dangerous precedent | Serena Mayeri and Amanda Shanor
The bespoke agreements are full of peril for the universities, allowing the federal government to quietly exert control
www.theguardian.com
November 23, 2025 at 2:42 PM
#AcademicSky
The University of Virginia and Cornell deals with Trump could reshape academic freedom and federal oversight, writes The Guardian today
The University of Virginia and Cornell deals with Trump could reshape academic freedom and federal oversight, writes The Guardian today
Reposted by Katja Kasimatis
When mothers survive, the world thrives.
By training midwives, equipping clinics, and ensuring every mother has access to lifesaving care, we are strengthening systems to ensure that every mother gets the care they deserve.
Learn more: https://bit.ly/4ooSqhs
By training midwives, equipping clinics, and ensuring every mother has access to lifesaving care, we are strengthening systems to ensure that every mother gets the care they deserve.
Learn more: https://bit.ly/4ooSqhs
November 15, 2025 at 8:55 PM
When mothers survive, the world thrives.
By training midwives, equipping clinics, and ensuring every mother has access to lifesaving care, we are strengthening systems to ensure that every mother gets the care they deserve.
Learn more: https://bit.ly/4ooSqhs
By training midwives, equipping clinics, and ensuring every mother has access to lifesaving care, we are strengthening systems to ensure that every mother gets the care they deserve.
Learn more: https://bit.ly/4ooSqhs
Reposted by Katja Kasimatis
Former UVA president Jim Ryan, who resigned over the summer due to pressure from the Trump Administration, just shared this 12-page letter with the Faculty Senate, detailing his experience with the Board of Visitors and DOJ.
It's a surreal--and troubling--read.
drive.google.com/file/d/1Is6x...
It's a surreal--and troubling--read.
drive.google.com/file/d/1Is6x...
November 14, 2025 at 2:15 PM
Former UVA president Jim Ryan, who resigned over the summer due to pressure from the Trump Administration, just shared this 12-page letter with the Faculty Senate, detailing his experience with the Board of Visitors and DOJ.
It's a surreal--and troubling--read.
drive.google.com/file/d/1Is6x...
It's a surreal--and troubling--read.
drive.google.com/file/d/1Is6x...
Reposted by Katja Kasimatis
The Undergraduate Community at Evolution program provides travel funding, mentoring, and a presentation opportunity at #Evol2026. Please share with undergrads in your lab! www.evolutionsociety.org/content/educ...
@asn-amnat.bsky.social @systbiol.bsky.social @evolmtg.bsky.social
@asn-amnat.bsky.social @systbiol.bsky.social @evolmtg.bsky.social
November 10, 2025 at 2:29 AM
The Undergraduate Community at Evolution program provides travel funding, mentoring, and a presentation opportunity at #Evol2026. Please share with undergrads in your lab! www.evolutionsociety.org/content/educ...
@asn-amnat.bsky.social @systbiol.bsky.social @evolmtg.bsky.social
@asn-amnat.bsky.social @systbiol.bsky.social @evolmtg.bsky.social
Reposted by Katja Kasimatis
Sharing our new paper, "Distinct haplotypes and reversed dominance at a single-gene balanced polymorphism controlling heterodichogamy in two genera of wingnuts". Genomics & evolution of a mating type system involving two morphs with alternating sexes in walnut relatives www.cell.com/current-biol...
Distinct haplotypes and reversed dominance at a single-gene balanced polymorphism controlling heterodichogamy in two genera of wingnuts
In most species within the walnut family, two genetically determined morphs alternate
between male and female flowering phases in time. Groh et al. identify a distinct
locus for this dimorphism in two...
www.cell.com
October 16, 2025 at 3:43 PM
Sharing our new paper, "Distinct haplotypes and reversed dominance at a single-gene balanced polymorphism controlling heterodichogamy in two genera of wingnuts". Genomics & evolution of a mating type system involving two morphs with alternating sexes in walnut relatives www.cell.com/current-biol...
Reposted by Katja Kasimatis
We're excited to be recruiting an NIH funded postdoc to work in the Coop lab at UC Davis. We're specifically interested in candidates who are want to work at the intersection of human genetics, GWAS, and population genetics modeling. Please RT
October 15, 2025 at 3:53 PM
We're excited to be recruiting an NIH funded postdoc to work in the Coop lab at UC Davis. We're specifically interested in candidates who are want to work at the intersection of human genetics, GWAS, and population genetics modeling. Please RT
Reposted by Katja Kasimatis
#JustIn: Democrats in the state Senate say "future budget considerations" could impact UVA if it signs onto the Trump administration's education compact.
State Senate Democrats tell UVA to not consider education compact
Democrats in the state Senate write that if UVA signs the Compact for Academic Excellence in Higher Education, “there will be significant consequences in future Virginia budget cycles.”
www.cbs19news.com
October 8, 2025 at 8:07 PM
#JustIn: Democrats in the state Senate say "future budget considerations" could impact UVA if it signs onto the Trump administration's education compact.
Reposted by Katja Kasimatis
UVA Faculty Senate with a clear statement of values: facultysenate.virginia.edu/resolution-o...
Resolution Opposing the "Compact for Academic Excellence in Higher Education" | Faculty Senate, U.Va.
facultysenate.virginia.edu
October 5, 2025 at 4:54 PM
UVA Faculty Senate with a clear statement of values: facultysenate.virginia.edu/resolution-o...
Reposted by Katja Kasimatis
Enough is enough. The health of the country is in danger. Read our resignation letters: insidemedicine.substack.com/p/breaking-n...
Breaking News: Read three top CDC officials' resignation emails.
The end of an era.
insidemedicine.substack.com
August 28, 2025 at 3:38 AM
Enough is enough. The health of the country is in danger. Read our resignation letters: insidemedicine.substack.com/p/breaking-n...
Reposted by Katja Kasimatis
I’m excited to share our work which identifies a new seminal fluid protein in C. elegans!
Kasimatis et al. identify a new nematode seminal fluid protein which is released from a novel sperm subcellular organelle. This protein is not involved in sexual conflict but provides a small fitness benefit to females
doi.org/10.1093/jeb/...
@katjakasimatis.bsky.social @asherdcutter.bsky.social
doi.org/10.1093/jeb/...
@katjakasimatis.bsky.social @asherdcutter.bsky.social
A novel sperm-derived seminal fluid protein in Caenorhabditis nematodes
Abstract. Nematode sperm contains subcellular vesicles known as membranous organelles (MOs) that fuse with the sperm cell membrane upon sperm activation to
doi.org
July 4, 2025 at 10:59 PM
I’m excited to share our work which identifies a new seminal fluid protein in C. elegans!
Reposted by Katja Kasimatis
The American Academy of Pediatricians bluntly telling us the current CDC can't be trusted, and of course they are absolutely correct
publications.aap.org/aapnews/news...
publications.aap.org/aapnews/news...
AAP will continue to publish its own vaccine recommendations after CDC advisers sow distrust
The CDC’s Advisory Committee on Immunization Practices plans to form a work group to review child and adolescent immunization schedules despite them undergoing constant review in real time.
publications.aap.org
June 26, 2025 at 12:35 PM
The American Academy of Pediatricians bluntly telling us the current CDC can't be trusted, and of course they are absolutely correct
publications.aap.org/aapnews/news...
publications.aap.org/aapnews/news...
Reposted by Katja Kasimatis
Just minutes into the first meeting of scientific advisers appointed by Health Secretary Robert F. Kennedy Jr., it was clear that the skeptical panelists intended to upend longstanding vaccine recommendations in the US, particularly those pertaining to children.
www.nytimes.com/2025/06/25/h...
www.nytimes.com/2025/06/25/h...
Kennedy’s New Advisers to Broaden Scrutiny of Childhood Vaccines
www.nytimes.com
June 25, 2025 at 6:57 PM
Just minutes into the first meeting of scientific advisers appointed by Health Secretary Robert F. Kennedy Jr., it was clear that the skeptical panelists intended to upend longstanding vaccine recommendations in the US, particularly those pertaining to children.
www.nytimes.com/2025/06/25/h...
www.nytimes.com/2025/06/25/h...
Reposted by Katja Kasimatis
Millions of people are at risk of losing their health care and it’s no accident.
Follow the thread to learn more 🧵👇
Follow the thread to learn more 🧵👇
June 24, 2025 at 7:10 PM
Millions of people are at risk of losing their health care and it’s no accident.
Follow the thread to learn more 🧵👇
Follow the thread to learn more 🧵👇
Hey #Evol2025! Come here about some of the awesome work our lab is doing. Lynsey will be presenting on the function of mate plugging in C. elegans on Monday at 4:30pm in Athena F.
June 22, 2025 at 1:04 PM
Hey #Evol2025! Come here about some of the awesome work our lab is doing. Lynsey will be presenting on the function of mate plugging in C. elegans on Monday at 4:30pm in Athena F.
Reposted by Katja Kasimatis
Exciting new study showing extensive Argonaute protein family gain, loss, neofunctionalization + more among species, by PhD student Daniel Fusca with @katjakasimatis.bsky.social + Hongyu Zhu; Now out @genomebiolevol.bsky.social #celegans #rna doi.org/10.1093/gbe/...
Dynamic Birth and Death of Argonaute Gene Family Functional Repertoire Across Caenorhabditis Nematodes
Abstract. Diverse small RNA pathways, composed of Argonaute effector proteins and their bound small RNA molecules, define critical systems for regulating g
doi.org
June 12, 2025 at 2:03 AM
Exciting new study showing extensive Argonaute protein family gain, loss, neofunctionalization + more among species, by PhD student Daniel Fusca with @katjakasimatis.bsky.social + Hongyu Zhu; Now out @genomebiolevol.bsky.social #celegans #rna doi.org/10.1093/gbe/...
Reposted by Katja Kasimatis
The RECOVER team has just published a paper showing that 14% of infants and toddlers and 15% of preschoolers have symptoms of LongCOVID compared to uninfected kids.
COVID19 vaccines have been shown to reduce the risk of LongCOVID, but RFK Jr. has decided this isn’t important.
Link ⬇️
COVID19 vaccines have been shown to reduce the risk of LongCOVID, but RFK Jr. has decided this isn’t important.
Link ⬇️
May 28, 2025 at 9:17 PM
The RECOVER team has just published a paper showing that 14% of infants and toddlers and 15% of preschoolers have symptoms of LongCOVID compared to uninfected kids.
COVID19 vaccines have been shown to reduce the risk of LongCOVID, but RFK Jr. has decided this isn’t important.
Link ⬇️
COVID19 vaccines have been shown to reduce the risk of LongCOVID, but RFK Jr. has decided this isn’t important.
Link ⬇️
Reposted by Katja Kasimatis
Vaccines are key to reducing #COVID risk, especially for pregnant people
“Pregnant women with COVID-19 consistently had a higher risk of death & pneumonia than nonpregnant women of similar age with COVID-19”
Adj. Relative risk of death: 1.68 (1.36–2.08)
Adj. RR of pneumonia: 1.97 (1.82–2.13)
“Pregnant women with COVID-19 consistently had a higher risk of death & pneumonia than nonpregnant women of similar age with COVID-19”
Adj. Relative risk of death: 1.68 (1.36–2.08)
Adj. RR of pneumonia: 1.97 (1.82–2.13)
Young pregnant women are also at an increased risk of mortality and severe illness due to coronavirus disease 2019: analysis of the Mexican National Surveillance Program
There is conflicting information regarding whether pregnant women are at increased
risk of severe complications from severe acute respiratory syndrome coronavirus 2
(SARS-CoV-2). We sought to understa...
www.ajog.org
May 17, 2025 at 2:33 PM
Vaccines are key to reducing #COVID risk, especially for pregnant people
“Pregnant women with COVID-19 consistently had a higher risk of death & pneumonia than nonpregnant women of similar age with COVID-19”
Adj. Relative risk of death: 1.68 (1.36–2.08)
Adj. RR of pneumonia: 1.97 (1.82–2.13)
“Pregnant women with COVID-19 consistently had a higher risk of death & pneumonia than nonpregnant women of similar age with COVID-19”
Adj. Relative risk of death: 1.68 (1.36–2.08)
Adj. RR of pneumonia: 1.97 (1.82–2.13)
Reposted by Katja Kasimatis
📣 Medicaid is the backbone of maternal and child health in the U.S.
As attacks on this essential program continue, here’s what’s at stake for moms, babies, and families across the country. 🧵👇
As attacks on this essential program continue, here’s what’s at stake for moms, babies, and families across the country. 🧵👇
May 4, 2025 at 11:35 PM
📣 Medicaid is the backbone of maternal and child health in the U.S.
As attacks on this essential program continue, here’s what’s at stake for moms, babies, and families across the country. 🧵👇
As attacks on this essential program continue, here’s what’s at stake for moms, babies, and families across the country. 🧵👇
Reposted by Katja Kasimatis
Registration (free!) is now open for the second Internal Conflicts and Organismal Adaptation STN workshop in Barcelona on August 17! Like our first workshop, it will feature contributed talks and group-based discussions on key themes. Info + registration: internalconflictsSTN.wordpress.com. [1/2]
INTERNAL CONFLICTS AND ORGANISMAL ADAPTATION
ESEB Special Topic Network
internalconflictsSTN.wordpress.com
March 27, 2025 at 8:04 AM
Registration (free!) is now open for the second Internal Conflicts and Organismal Adaptation STN workshop in Barcelona on August 17! Like our first workshop, it will feature contributed talks and group-based discussions on key themes. Info + registration: internalconflictsSTN.wordpress.com. [1/2]
Reposted by Katja Kasimatis
Welcome to the Bluesky account for Stand Up for Science 2025!
Keep an eye on this space for updates, event information, and ways to get involved. We can't wait to see everyone #standupforscience2025 on March 7th, both in DC and locations nationwide!
#scienceforall #sciencenotsilence
Keep an eye on this space for updates, event information, and ways to get involved. We can't wait to see everyone #standupforscience2025 on March 7th, both in DC and locations nationwide!
#scienceforall #sciencenotsilence
February 12, 2025 at 5:04 PM
Welcome to the Bluesky account for Stand Up for Science 2025!
Keep an eye on this space for updates, event information, and ways to get involved. We can't wait to see everyone #standupforscience2025 on March 7th, both in DC and locations nationwide!
#scienceforall #sciencenotsilence
Keep an eye on this space for updates, event information, and ways to get involved. We can't wait to see everyone #standupforscience2025 on March 7th, both in DC and locations nationwide!
#scienceforall #sciencenotsilence
Reposted by Katja Kasimatis
Some people might need these this week.
January 21, 2025 at 11:23 PM
Some people might need these this week.
Reposted by Katja Kasimatis
Now in print, led by @katjakasimatis.bsky.social: Transcriptomic Sexual Conflict at Two Evolutionary Timescales Revealed by Experimental Evolution in Caenorhabditis elegans. academic.oup.com/gbe/article/...
Transcriptomic Sexual Conflict at Two Evolutionary Timescales Revealed by Experimental Evolution in Caenorhabditis elegans
Abstract. Sex-specific regulation of gene expression is the most plausible way for generating sexually differentiated phenotypes from an essentially shared
academic.oup.com
December 31, 2024 at 7:12 PM
Now in print, led by @katjakasimatis.bsky.social: Transcriptomic Sexual Conflict at Two Evolutionary Timescales Revealed by Experimental Evolution in Caenorhabditis elegans. academic.oup.com/gbe/article/...
Reposted by Katja Kasimatis
Just accepted #EcologyLetters! Exciting work by recent grad Rebecca Schalkowski with @katjakasimatis.bsky.social and Megan Greischar linking 2 species community coexistence to sperm cell mediated reproductive interference! Preprint here www.authorea.com/users/804447...
Reproductive interference alters species coexistence in nematodes due to asymmetric sperm-induced harm
Species coexistence is shaped by a range of biotic and abiotic factors. Beyond predation, parasitism, and competition, one species may interfere with another's reproduction to induce sexual exclusion ...
www.authorea.com
December 16, 2024 at 9:04 PM
Just accepted #EcologyLetters! Exciting work by recent grad Rebecca Schalkowski with @katjakasimatis.bsky.social and Megan Greischar linking 2 species community coexistence to sperm cell mediated reproductive interference! Preprint here www.authorea.com/users/804447...
Really excited to see this work come out! We show that sexual conflict can be generated over only tens of generations.
Early online at GBE: Transcriptomic sexual conflict at two evolutionary timescales revealed by experimental evolution in Caenorhabditis elegans, led by @katjakasimatis.bsky.social. Exp evolution for sexual conflict in one sex reveals latent reciprocal sexual conflict academic.oup.com/gbe/advance-...
Transcriptomic sexual conflict at two evolutionary timescales revealed by experimental evolution in Caenorhabditis elegans
Abstract. Sex-specific regulation of gene expression is the most plausible way for generating sexually differentiated phenotypes from an essentially shared
academic.oup.com
November 23, 2024 at 2:16 AM
Really excited to see this work come out! We show that sexual conflict can be generated over only tens of generations.