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Skip to Search Results- 58Graduate and Postdoctoral Studies (GPS), Faculty of
- 58Graduate and Postdoctoral Studies (GPS), Faculty of/Theses and Dissertations
- 35Biological Sciences, Department of
- 32Biological Sciences, Department of/Journal Articles (Biological Sciences)
- 8Philosophy, Department of
- 5Philosophy, Department of/Journal Articles (Philosophy)
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Spring 2017
Pulses of ecdysone, a steroid hormone, play an integral role during insect development however, how these ecdysone pulses are regulated has been relatively unexplored. I have shown that the presence of nitric oxide (NO) within the larval prothoracic gland (PG), the principal source of larval...
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Expansion of ruminant-specific microRNAs shapes target gene expression divergence between ruminant and non-ruminant species
Download2013
Kommadath, A., Bao, H., Meng, Y., Plastow, G. S., Stothard, P., Sun, X., Arantes, A. S., Guan, L. L.
Background Understanding how species-specific microRNAs (miRNAs) contribute to species-specific phenotypes is a central topic in biology. This study aimed to elucidate the role of ruminant-specific miRNAs in shaping mRNA expression divergence between ruminant and non-ruminant species. ...
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Fall 2021
Disease resilience is defined as an animal’s ability to maintain a high level of performance in the face of disease challenges caused by multiple pathogens, as is often the case in commercial pig farms. Therefore, disease resilience is anticipated to be critical to the profitability of the pig...
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Spring 2011
Forkhead (Fox) proteins are transcription factors that function in many processes including development, metabolism and cell cycle regulation. This gene family is divided into subfamilies that appear to originate from a common ancestor. I have identified the evolutionary selection pressures...
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Freshwater Sponges Have Functional, Sealing Epithelia with High Transepithelial Resistance and Negative Transepithelial Potential
Download2010
Leys, S.P., Goss, G.G., Adams, E.D.M.
Epithelial tissue — the sealed and polarized layer of cells that regulates transport of ions and solutes between the environment and the internal milieu — is a defining characteristic of the Eumetazoa. Sponges, the most ancient metazoan phylum [1], [2], are generally believed to lack true...
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2013-12-13
Oil Sands Research and Information Network
A group of 48 people from government, academia, consultants and the oil sands and plant production industries gathered on November 25, 2013 to discuss the current state of knowledge about shrubs and their current and future use in oil sands reclamation. The Workshop was organized around four key...
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2008
Li, R., Wang, J., Wong, G.K.S., Zheng, H., Xu, S., Clark, T., Zheng, X., Vang, S.
Background Gene conversion causes a non-reciprocal transfer of genetic information between similar sequences. Gene conversion can both homogenize genes and recruit point mutations thereby shaping the evolution of multigene families. In the rice genome, the large number of duplicated genes...
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Gene expression and sensory structures in sponges: Explorations of sensory-neural origins in a non-bilaterian context
DownloadFall 2017
The nervous system is present in all but two animal phyla – one of them being Porifera, sponges. Sponges have no neurons and yet have organized behavior and finely tuned sensation. Furthermore, sponges have genes involved in the nervous system of other animals (informally called ‘neural’ genes)....
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Genetic diversity and selection in North American red squirrels (Tamiasciurus hudsonicus): A Hamiltonian perspective into the processes and mechanisms of evolution
DownloadFall 2013
The theory of natural selection has advanced our understanding in every aspect of biological sciences, yet despite this seeming ubiquity, there remain some components that are not fully resolved. Natural selection predicts the “selfish” advancement of genes that are optimally suited for their...
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Genetic population structure of walleye (Sander vitreus) in northern Alberta and application to species management
DownloadFall 2010
Walleye (Sander vitreus) is an economically valuable freshwater fish throughout North America. In Alberta, pressure from sport fishing and commercial fishing make effective management and protection of this species crucial to its sustainability. Walleye from 12 Alberta lakes were genetically...