Index Catalog // ScholarsArchive@OSU

Modifications to Rearing Environments as a Method for Reducing Domestication Selection in Hatchery-reared Steelhead (Oncorhynchus mykiss)

Creator:: Obley, Miriam
Abstract:: Since the decline of salmonid populations in the Pacific Northwest, supplementation programs have become frequently implemented by hatcheries as a way to protect and conserve wild stock. However, hatchery-reared fish have lower fitness than wild fish which is likely due to adaptation to the hatchery environment, i.e., domestication selection. Fish...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Michael S. Blouin Since the decline of salmonid populations in the Pacific Northwest

Cost to Biomphalaria glabrata of Resisting Infection by Schistosoma mansoni

Creator:: Sergi, Clint
Abstract:: Schistosomiasis is a neglected tropical disease caused by parasitic trematodes in the genus Schistosoma. 200 million people are infected with schistosomes. Schistosomiasis causes acute and chronic disease, and may lead to death in chronic infections. Schistosomes have a complex life cycle that requires passage through a snail intermediate host. Understanding...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Michael Blouin Schistosomiasis is a neglected tropical disease caused by parasitic

Test for Transgenerational Immune Priming in the Snail, Biomphalaria glabrata

Creator:: Anand, Sonal
Abstract:: Transgenerational immune priming occurs when an adult is exposed to a parasite or other pathogen and then transmits information to its offspring through protective phenotypes to cope with the same pathogen (Moret, 2006). There has been evidence for transgenerational immune priming in various invertebrates (Tidbury et al. 2011). Here we...
Resource Type:: Honors College Thesis
Full Text:: Michael Blouin Transgenerational immune priming occurs when an adult is exposed to a parasite or

Rearing density as a driver of adaptation to captivity and traits under selection by domestication in hatchery reared steelhead (Oncorhynchus mykiss)

Creator:: Thompson, Neil F.
Abstract:: Releasing hatchery reared salmon and steelhead to supplement threatened and endangered populations is a widely used conservation tool. One issue with this strategy is hatchery fish have lower reproductive fitness than wild fish when spawning in the wild. One of the drivers of fitness loss in steelhead is adaptation to...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Michael S. Blouin Releasing hatchery reared salmon and steelhead to supplement

Genetic and phenotypic variation associated with the resistance gene SOD1 in Biomphalaria glabrata, an important intermediate host of Schistosomiasis

Creator:: Bonner, Kaitlin M.
Abstract:: Schistosomiasis afflicts 200 million people and is responsible for 200,000 deaths per year. The infection is caused by a digenean trematode in the genus Schistosoma. The parasite must cycle through both a vertebrate (human) and invertebrate (snail) host to complete the life cycle. My dissertation focuses on the genetic mechanisms...
Resource Type:: Dissertation
Full Text:: Intermediate Host of Schistosomiasis Abstract approved: Michael S. Blouin Schistosomiasis afflicts 200

Natural history and evolution of a color polymorphism in Rana pipiens, the northern leopard frog

Creator:: Hoffman, Eric A.
Abstract:: A primary goal of population genetics is to identify the role of microevolutionary forces in producing observed patterns of molecular and phenotypic variation. I conducted four studies in the northern leopard frog, Rana pipiens, to determine just how mutation, migration, genetic drift, and selection influenced, genetic structure of mitochondrial DNA...
Resource Type:: Dissertation
Full Text:: Color Polymorphism in Rana pipiens. the Northern Leopard Frog. Abstract approved: Michael S. Blouin A

The influence of parasite ecology on the genetic structure of parasite populations

Creator:: Criscione, Charles David
Abstract:: Parasites are unique study organisms for evolutionary ecologists. Yet, molecular ecology studies on parasites have lagged far behind those on free-living organisms. The goal of the review in Chapter 2 was to illustrate areas of research that may be of particular interest in relation to the parasitic life style and...
Resource Type:: Dissertation

Population genetics of ranid frogs : investigating effective population size and gene flow

Creator:: Phillipsen, Ivan C.
Abstract:: This dissertation focuses on the evolutionary forces of genetic drift and gene flow in frog populations. The balance of these two forces and the force of mutation largely determine the amount of neutral genetic variation within populations as well as the degree of genetic similarity among populations. The stochastic evolutionary...
Resource Type:: Dissertation
Full Text:: Gene Flow Abstract approved: Michael S. Blouin This dissertation focuses on

Adaptive diversity and divergence at frog antimicrobial peptide loci

Creator:: Tennessen, Jacob A.
Abstract:: In this dissertation I study evolutionary patterns at genes encoding antimicrobial peptides (AMPs) in frogs. AMPs are short, amphipathic, cationic, secreted proteins that kill bacteria and other pathogens through a non-catalytic mechanism that involves binding to and disrupting the microbial cell membrane. In many animal taxa, positive selection is much...
Resource Type:: Dissertation
Full Text:: Michael S. Blouin In this dissertation I study evolutionary patterns at genes encoding antimicrobial

Optimizers for single and multi-stage job-shop scheduling problems

Creator:: Ramalingam, P. Rama, 1941-
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Modifications to Rearing Environments as a Method for Reducing Domestication Selection in Hatchery-reared Steelhead (Oncorhynchus mykiss)

Cost to Biomphalaria glabrata of Resisting Infection by Schistosoma mansoni

Test for Transgenerational Immune Priming in the Snail, Biomphalaria glabrata

Rearing density as a driver of adaptation to captivity and traits under selection by domestication in hatchery reared steelhead (Oncorhynchus mykiss)

Genetic and phenotypic variation associated with the resistance gene SOD1 in Biomphalaria glabrata, an important intermediate host of Schistosomiasis

Natural history and evolution of a color polymorphism in Rana pipiens, the northern leopard frog

The influence of parasite ecology on the genetic structure of parasite populations

Population genetics of ranid frogs : investigating effective population size and gene flow

Adaptive diversity and divergence at frog antimicrobial peptide loci

Optimizers for single and multi-stage job-shop scheduling problems

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