Index Catalog // ScholarsArchive@OSU

DenverDeeZoologyEndogenousROSLevels.pdf

Creator:: Smith, Samson W., Latta, Leigh C., Denver, Dee R., and Estes, Suzanne
Abstract:: BACKGROUND: The oxidative stress theory of life-history tradeoffs states that oxidative stress caused by damaging free radicals directly underpins tradeoffs between reproduction and longevity by altering the allocation of energetic resources between these tasks. We test this theory by characterizing the effects of exogenous oxidative insult and its interaction with...
Full Text:: Smith, S. W., Latta, L. C., Denver, D. R., & Estes, S. (2014). Endogenous ROS levels in C. elegans

DenverDeeZoologyEndogenousROSLevels_TablesS1-S7.pdf

Creator:: Smith, Samson W., Latta, Leigh C., Denver, Dee R., and Estes, Suzanne
Abstract:: BACKGROUND: The oxidative stress theory of life-history tradeoffs states that oxidative stress caused by damaging free radicals directly underpins tradeoffs between reproduction and longevity by altering the allocation of energetic resources between these tasks. We test this theory by characterizing the effects of exogenous oxidative insult and its interaction with...

Endogenous ROS levels in C. elegans under exogenous stress support revision of oxidative stress theory of life-history tradeoffs

Creator:: Smith, Samson W., Latta, Leigh C., Denver, Dee R., and Estes, Suzanne
Abstract:: BACKGROUND: The oxidative stress theory of life-history tradeoffs states that oxidative stress caused by damaging free radicals directly underpins tradeoffs between reproduction and longevity by altering the allocation of energetic resources between these tasks. We test this theory by characterizing the effects of exogenous oxidative insult and its interaction with...
Resource Type:: Article

In Vivo Quantification Reveals Extensive Natural Variation in Mitochondrial Form and Function in Caenorhabditis briggsae

Creator:: Hicks, Kiley A., Howe, Dana K., Leung, Aubrey, Denver, Dee R., and Estes, Suzanne
Abstract:: In We have analyzed natural variation in mitochondrial form and function among a set of Caenorhabditis briggsae isolates known to harbor mitochondrial DNA structural variation in the form of a heteroplasmic nad5 gene deletion (nad5 Delta) that correlates negatively with organismal fitness. We performed in vivo quantification of 24 mitochondrial...
Resource Type:: Article
Full Text:: . Howe2, Aubrey Leung2, Dee R. Denver2, Suzanne Estes1* 1 Biology Department, Portland State University

Evolution of a Higher Intracellular Oxidizing Environment in Caenorhabditis elegans under Relaxed Selection

Creator:: Joyner-Matos, Joanna, Hicks, Kiley A., Cousins, Dustin, Keller, Michelle, Denver, Dee R., Baer, Charles F., and Estes, Suzanne
Abstract:: We explored the relationship between relaxed selection, oxidative stress, and spontaneous mutation in a set of mutation-accumulation (MA) lines of the nematode Caenorhabditis elegans and in their common ancestor. We measured steady-state levels of free radicals and oxidatively damaged guanosine nucleosides in the somatic tissues of five MA lines for...
Resource Type:: Article
Full Text:: . Hicks2., Dustin Cousins1, Michelle Keller1, Dee R. Denver3, Charles F. Baer4, Suzanne Estes2

Selfish Little Circles: Transmission Bias and Evolution of Large Deletion-Bearing Mitochondrial DNA in Caenorhabditis briggsae Nematodes

Creator:: Clark, Katie A., Howe, Dana K., Gafner, Kristin, Kusuma, Danika, Ping, Sita, Estes, Suzanne, and Denver, Dee R.
Abstract:: Selfish DNA poses a significant challenge to genome stability and organismal fitness in diverse eukaryotic lineages. Although selfish mitochondrial DNA (mtDNA) has known associations with cytoplasmic male sterility in numerous gynodioecious plant species and is manifested as petite mutants in experimental yeast lab populations, examples of selfish mtDNA in animals...
Resource Type:: Article
Full Text:: , Dana K. Howe1, Kristin Gafner1, Danika Kusuma1, Sita Ping1, Suzanne Estes2, Dee R. Denver1* 1

PhillipsWendyIntegrativeBiologySelfishMitochondrialDNA.pdf

Creator:: Phillips, Wendy S., Coleman-Hulbert, Anna L., Weiss, Emily S., Howe, Dana K., Ping, Sita, Wernick, Riana I., Estes, Suzanne, and Denver, Dee R.
Abstract:: Evolutionary interactions across levels of biological organization contribute to a variety of fundamental processes including genome evolution, reproductive mode transitions, species diversification, and extinction. Evolutionary theory predicts that so-called “selfish” genetic elements will proliferate when the host effective population size (N[subscrit]e) is small, but direct tests of this prediction remain...
Full Text:: , Anna L. Coleman-Hulbert2, Emily S. Weiss1, Dana K. Howe1, Sita Ping1, Riana I. Wernick1, Suzanne Estes2

PhillipsWendyIntegrativeBiologySelfishMitochondrialDNASuppInfo.pdf

Creator:: Phillips, Wendy S., Coleman-Hulbert, Anna L., Weiss, Emily S., Howe, Dana K., Ping, Sita, Wernick, Riana I., Estes, Suzanne, and Denver, Dee R.
Abstract:: Evolutionary interactions across levels of biological organization contribute to a variety of fundamental processes including genome evolution, reproductive mode transitions, species diversification, and extinction. Evolutionary theory predicts that so-called “selfish” genetic elements will proliferate when the host effective population size (N[subscrit]e) is small, but direct tests of this prediction remain...

Selfish Mitochondrial DNA Proliferates and Diversifies in Small, but not Large, Experimental Populations of Caenorhabditis briggsae

Creator:: Phillips, Wendy S., Coleman-Hulbert, Anna L., Weiss, Emily S., Howe, Dana K., Ping, Sita, Wernick, Riana I., Estes, Suzanne, and Denver, Dee R.
Abstract:: Evolutionary interactions across levels of biological organization contribute to a variety of fundamental processes including genome evolution, reproductive mode transitions, species diversification, and extinction. Evolutionary theory predicts that so-called “selfish” genetic elements will proliferate when the host effective population size (N[subscrit]e) is small, but direct tests of this prediction remain...
Resource Type:: Article

LambrinosJohnHorticulturePredictingInvasionGrassland.pdf

Creator:: Seabloom, Eric W., Borer, Elizabeth T., Buckley, Yvonne, Cleland, Elsa E., Davies, Kendi, Firn, Jennifer, Harpole, W. Stanley, Hautier, Yann, Lind, Eric, Macdougall, Andrew, Orrock, John L., Prober, Suzanne M., Adler, Peter, Alberti, Juan, Anderson, T. Michael, Bakker, Jonathan D., Biederman, Lori A., Blumenthal, Dana, Brown, Cynthia S., Brudvig, Lars A., Caldeira, Maria, Chu, Chengjin, Crawley, Michael J., Daleo, Pedro, Damschen, Ellen I., D'Antonio, Carla M., Decrappeo, Nicole M., Dickman, Chris R., Du, Guozhen, Fay, Philip A., Frater, Paul, Gruner, Daniel S., Hagenah, Nicole, Hector, Andrew, Helm, Aveliina, Hillebrand, Helmut, Hofmockel, Kirsten S., Humphries, Hope C., Iribarne, Oscar, Jin, Virginia L., Kay, Adam, Kirkman, Kevin P., Klein, Julia A., Knops, Johannes M. H., La Pierre, Kimberly J., Ladwig, Laura M., Lambrinos, John G., Leakey, Andrew D. B., Li, Qi, Li, Wei, Mcculley, Rebecca, Melbourne, Brett, Mitchell, Charles E., Moore, Joslin L., Morgan, John, Mortensen, Brent, O'Halloran, Lydia R., Paertel, Meelis, Pascual, Jesus, Pyke, David A., Risch, Anita C., Salguero-Gomez, Roberto, Sankaran, Mahesh, Schuetz, Martin, Simonsen, Anna, Smith, Melinda, Stevens, Carly, Sullivan, Lauren, Wardle, Glenda M., Wolkovich, Elizabeth M., Wragg, Peter D., Wright, Justin, and Yang, Louie
Abstract:: Invasions have increased the size of regional species pools, but are typically assumed to reduce native diversity. However, global-scale tests of this assumption have been elusive because of the focus on exotic species richness, rather than relative abundance. This is problematic because low invader richness can indicate invasion resistance by...
Full Text:: HAUT IER 1 , 7 , E R IC L IND 1 , ANDREW MACDOUGALL 8 , JOHN L . ORROCK 9 , SUZANNE M . PROBER 1 0 , P

ScholarsArchive@OSU

DenverDeeZoologyEndogenousROSLevels.pdf

DenverDeeZoologyEndogenousROSLevels_TablesS1-S7.pdf

Endogenous ROS levels in C. elegans under exogenous stress support revision of oxidative stress theory of life-history tradeoffs

In Vivo Quantification Reveals Extensive Natural Variation in Mitochondrial Form and Function in Caenorhabditis briggsae

Evolution of a Higher Intracellular Oxidizing Environment in Caenorhabditis elegans under Relaxed Selection

Selfish Little Circles: Transmission Bias and Evolution of Large Deletion-Bearing Mitochondrial DNA in Caenorhabditis briggsae Nematodes

PhillipsWendyIntegrativeBiologySelfishMitochondrialDNA.pdf

PhillipsWendyIntegrativeBiologySelfishMitochondrialDNASuppInfo.pdf

Selfish Mitochondrial DNA Proliferates and Diversifies in Small, but not Large, Experimental Populations of Caenorhabditis briggsae

LambrinosJohnHorticulturePredictingInvasionGrassland.pdf

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