Jennifer A. Cundiff's research while affiliated with Washington State University and other places
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Publications (4)
We assessed the macrogeographic and neuroendocrine correlates of behavioral variation exhibited by juveniles, an important life stage for dispersal, across the expansive range of the wood frog. By rearing animals from eggs in a common garden then using a novel environment test, we uniquely demonstrated differential expression of juvenile behaviors...
Salmonella enterica serovar Typhimurium ( S . Typhimurium) is a zoonotic pathogen that causes diarrheal disease in humans and animals. During salmonellosis, S . Typhimurium colonizes epithelial cells lining the gastrointestinal tract. S . Typhimurium has an unusual lifestyle in epithelial cells that begins within an endocytic-derived Salmonella -co...
Phenotypic variation among populations is thought to be generated from spatial heterogeneity in environments that exert selection pressures that overcome the effects of gene flow and genetic drift. Here, we tested for evidence of isolation by distance or by ecology (i.e., ecological adaptation) to generate variation in early life history traits and...
Salmonella enterica serovar Typhimurium ( S . Typhimurium) is a zoonotic pathogen that causes diarrheal disease in humans and animals. During salmonellosis, S . Typhimurium colonizes epithelial cells lining the gastrointestinal tract. S . Typhimurium has an unusual lifestyle in epithelial cells that begins within an endocytic-derived Salmonella -co...
Citations
... pagN transcription is regulated by the two-component transcriptional regulatory PhoP/ PhoQ system and is induced under mildly acidic pH conditions and low divalent cation concentration environments [15], conditions close to those found in the SCV. Moreover, pagN was upregulated in the vacuolar compartment in an infected epithelial cell model [16]. The intravacuolar expression of pagN along with its role in adhesion and invasion suggests that Salmonella prepares the vacuole to enhance its ability to reinfect other cells [11]. ...
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... The process of speciation is frequently accompanied by divergence in life history traits, due to different environmental pressures acting on the newly-forming species (Abbott et al. 2013, Doellman et al. 2018. Divergence in these phenotypic traits can be induced by environmental conditions or can be genetically determined (Fischer et al. 2016, Le Sage et al. 2021, Sabino-Pinto et al. 2019. Genetically-determined traits that increase population fitness of a species in its environment are called adaptive traits, and the process by which trait phenotypes and underlying genotypes increase in frequency in a population is referred to as local adaptation (Hereford 2009, Hoban et al. 2016, Savolainen et al. 2013. ...
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... SPI-1 encodes a type three secretion system (T3SS) that delivers effector proteins to help Salmonella penetrate the intestinal epithelium (25). There are 46 genes located in SPI-1 (26), which includes genes coding for the secretion system apparatus, effector proteins, and their regulators. ICA extracted two iModulons (SPI-1-1 and SPI-1-2) enriched for SPI-1 genes, in total accounting for 5% of the global expression variance across the compendium. ...
