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author Choi, Emma S
Flanagan, Ben A
Alexander, Heather
Berini, John
Yeung, Alex
Wolf, Cole J
Watts, Viola
Vaziri, Grace
Vargas, Nataly
Szajada, Caroline
Steffen, Penelope
Srinivas, Ipsita
Shahid, Mehreen
Santacruz, Ana
Rochon, Kaligua
Rippin, Luke
Reyes Contreras, Edith
Redfield, Emma
Polard, Emma
Patterson, Cate
Gilani, Fahad
Flanagan, Julian
Dubin, Shira
Cooper, Peaches
Codner, Panna
Chen, Amy
Casey, Gwen
Albright, Abigail G
Hite, Jessica
Weber, Jesse N
Bolnick, Daniel I
Hund, Amanda K
author_facet Choi, Emma S
Flanagan, Ben A
Alexander, Heather
Berini, John
Yeung, Alex
Wolf, Cole J
Watts, Viola
Vaziri, Grace
Vargas, Nataly
Szajada, Caroline
Steffen, Penelope
Srinivas, Ipsita
Shahid, Mehreen
Santacruz, Ana
Rochon, Kaligua
Rippin, Luke
Reyes Contreras, Edith
Redfield, Emma
Polard, Emma
Patterson, Cate
Gilani, Fahad
Flanagan, Julian
Dubin, Shira
Cooper, Peaches
Codner, Panna
Chen, Amy
Casey, Gwen
Albright, Abigail G
Hite, Jessica
Weber, Jesse N
Bolnick, Daniel I
Hund, Amanda K
Choi, Emma S
Flanagan, Ben A
Alexander, Heather
Berini, John
Yeung, Alex
Wolf, Cole J
Watts, Viola
Vaziri, Grace
Vargas, Nataly
Szajada, Caroline
Steffen, Penelope
Srinivas, Ipsita
Shahid, Mehreen
Santacruz, Ana
Rochon, Kaligua
Rippin, Luke
Reyes Contreras, Edith
Redfield, Emma
Polard, Emma
Patterson, Cate
Gilani, Fahad
Flanagan, Julian
Dubin, Shira
Cooper, Peaches
Codner, Panna
Chen, Amy
Casey, Gwen
Albright, Abigail G
Hite, Jessica
Weber, Jesse N
Bolnick, Daniel I
Hund, Amanda K
collection PubMed - marine biology
contents Constitutive and inducible fibrosis explain immune variation among threespine stickleback populations. Choi, Emma S Flanagan, Ben A Alexander, Heather Berini, John Yeung, Alex Wolf, Cole J Watts, Viola Vaziri, Grace Vargas, Nataly Szajada, Caroline Steffen, Penelope Srinivas, Ipsita Shahid, Mehreen Santacruz, Ana Rochon, Kaligua Rippin, Luke Reyes Contreras, Edith Redfield, Emma Polard, Emma Patterson, Cate Gilani, Fahad Flanagan, Julian Dubin, Shira Cooper, Peaches Codner, Panna Chen, Amy Casey, Gwen Albright, Abigail G Hite, Jessica Weber, Jesse N Bolnick, Daniel I Hund, Amanda K Population-specific immunity can drive variation in infection outcomes, but studying immune variation in the wild is challenging because exposure histories are unknown. Comparing wild populations with those reared in a common environment can disentangle genetic and environmental drivers of immunity. We applied this approach in freshwater threespine stickleback, where populations vary in their use of intraperitoneal fibrosis to defend against the helminth parasite . We combined a 46-lake immune survey with a common garden experiment using 20 representative populations to examine variation in fibrosis and infection. Laboratory assays included exposures to live tapeworms and immune challenges with tapeworm proteins and aluminum phosphate (Alum). We found heritable variation in both constitutive fibrosis and inducible fibrosis. Inducible responses to tapeworms were associated with lake environmental conditions, with fish from more eutrophic-like lakes showing stronger fibrosis induction than those from more oligotrophic-like lakes. Together, these results show how integrating wild immune variation with common garden experiments can reveal novel heritable defenses and link their evolution to ecological variation.
format Artículo científico
id pubmed_42094583
institution PubMed
language en
publishDate 2026
publisher bioRxiv : the preprint server for biology
record_format pubmed
spellingShingle Constitutive and inducible fibrosis explain immune variation among threespine stickleback populations.
Choi, Emma S
Flanagan, Ben A
Alexander, Heather
Berini, John
Yeung, Alex
Wolf, Cole J
Watts, Viola
Vaziri, Grace
Vargas, Nataly
Szajada, Caroline
Steffen, Penelope
Srinivas, Ipsita
Shahid, Mehreen
Santacruz, Ana
Rochon, Kaligua
Rippin, Luke
Reyes Contreras, Edith
Redfield, Emma
Polard, Emma
Patterson, Cate
Gilani, Fahad
Flanagan, Julian
Dubin, Shira
Cooper, Peaches
Codner, Panna
Chen, Amy
Casey, Gwen
Albright, Abigail G
Hite, Jessica
Weber, Jesse N
Bolnick, Daniel I
Hund, Amanda K
Constitutive and inducible fibrosis explain immune variation among threespine stickleback populations. Choi, Emma S Flanagan, Ben A Alexander, Heather Berini, John Yeung, Alex Wolf, Cole J Watts, Viola Vaziri, Grace Vargas, Nataly Szajada, Caroline Steffen, Penelope Srinivas, Ipsita Shahid, Mehreen Santacruz, Ana Rochon, Kaligua Rippin, Luke Reyes Contreras, Edith Redfield, Emma Polard, Emma Patterson, Cate Gilani, Fahad Flanagan, Julian Dubin, Shira Cooper, Peaches Codner, Panna Chen, Amy Casey, Gwen Albright, Abigail G Hite, Jessica Weber, Jesse N Bolnick, Daniel I Hund, Amanda K Population-specific immunity can drive variation in infection outcomes, but studying immune variation in the wild is challenging because exposure histories are unknown. Comparing wild populations with those reared in a common environment can disentangle genetic and environmental drivers of immunity. We applied this approach in freshwater threespine stickleback, where populations vary in their use of intraperitoneal fibrosis to defend against the helminth parasite . We combined a 46-lake immune survey with a common garden experiment using 20 representative populations to examine variation in fibrosis and infection. Laboratory assays included exposures to live tapeworms and immune challenges with tapeworm proteins and aluminum phosphate (Alum). We found heritable variation in both constitutive fibrosis and inducible fibrosis. Inducible responses to tapeworms were associated with lake environmental conditions, with fish from more eutrophic-like lakes showing stronger fibrosis induction than those from more oligotrophic-like lakes. Together, these results show how integrating wild immune variation with common garden experiments can reveal novel heritable defenses and link their evolution to ecological variation.
title Constitutive and inducible fibrosis explain immune variation among threespine stickleback populations.
url https://pubmed.ncbi.nlm.nih.gov/42094583/