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- 870Biological Sciences, Department of/Journal Articles (Biological Sciences)
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- 419University of Alberta, Department of Biological Sciences
- 81Mark A. Lewis
- 52Lewis, Mark A.
- 52Stockey, R.A.
- 23Wishart, D.S.
- 21Rothwell, G.W.
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Unequal recombination and evolution of the mating-type (MAT) loci in the pathogenic fungus Grosmannia clavigera and relatives. G3: Genes, Genomes, Genetics
Download2013-01-01
Hamelin, Richard C., Tsui, Clement K.M., Bohlmann, Jörg, DiGuistini, Scott, Dhillon, Braham, Feau, Nicolas, Wang, Ye
Sexual reproduction in fungi is regulated by the mating-type (MAT) locus where recombination is suppressed. We investigated the evolution of MAT loci in eight fungal species belonging to Grosmannia and Ophiostoma (Sordariomycetes, Ascomycota) that include conifer pathogens and beetle symbionts....
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Unique and Overlapping Expression Patterns among Members of Photosynthesis-Associated Nuclear Gene Families in Arabidopsis
Download2008
Sawchuck, M. G., Scarpella, E., Head, P., Donner, T. J.
Light provides crucial positional information in plant development, and the morphogenetic processes that are orchestrated by light signals are triggered by changes of gene expression in response to variations in light parameters. Control of expression of members of the RbcS and Lhc families of...
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Unusual predation attempts of polar bears on ringed seals in the southern beaufort sea: Possible significance of changing spring ice conditions
Download2008
Richardson, E., Stirling, I., Thiemann, G.W., Derocher, A.E.
In April and May 2003 through 2006, unusually rough and rafted sea ice extended for several tens of kilometres offshore in the southeastern Beaufort Sea from about Atkinson Point to the Alaska border. Hunting success of polar bears (Ursus maritimus) seeking seals was low despite extensive...
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Unveiling trade-offs in resource selection of migratory caribou using a mechanistic movement model of availability
Download2015-01-01
Guillaume, Bastille-Rousseau, Jonathan R., Potts, James A., Schaefer, Mark A., Lewis, Hance E., Ellington, Nathaniel D., Rayl, Shane P., Mahoney, Dennis L., Murray
Habitat selection is a multi-level, hierarchical process that should be a key component in the balance between food acquisition and predation risk avoidance (food–predation trade-off). However, to date, studies have not fully elucidated how fine- and broad-scale habitat decisions by individual...
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Upper Cretaceous Araucarian Cones from Hokkaido and Saghalien: Araucaria nipponensis Sp. Nov.
Download1994
Stockey, R.A., Nishida, M., Nishida, H.
Six ovulate, permineralized cones, four cone-scale complexes, and one isolated seed are described from the Upper Cretaceous Upper Yezo and Miho Groups from Hokkaido, Japan, and Saghalien, Russia. Cones are spherical, 3.5-6.0 cm in diameter, with prominent thick bracts. Thick ovuliferous scales...
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Urticalean Rosids: Circumscription, rosid ancestry, and phylogenetics based on rbcL, trnL-F, and ndhF sequences
Download2002
Conti, E., Nepokroeff, M., Chase, M.W., Pires, J.C., Morawetz, J., Zjhra, M., Hall, J.C., Sytsma, K.J.
To address the composition of the urticalean rosids, the relationships of the component families (maximally Cannabaceae, Cecropiaceae, Celtidaceae, Moraceae, Ulmaceae, and Urticaceae) and analyze evolution of morphological characters, we analyzed sequence variation for a large sampling of these...
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Use of the DCB Technique for Extraction of Hydrous Iron Oxides from Roots of Wetland Plants.
Download1983
Replicate samples of Phragmites communis roots coated with hydrous iron oxide were analyzed for internal and external Fe using the dithionite-citrate-bicarbonate technique (hot DCB), a modified DCB technique (cold DCB), Ethylenediaminete traacetic acid (EDTA), Diethylenetriamine pentaacetic acid...
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Using isotopic variance to detect long-distance dispersal and philopatry in birds: An example with Ovenbirds and American redstarts
Download2004
Bayne, E.M., Hobson, K.A., Wassenaar, L.I.
Understanding movement so f individualb irdsb etweenb reedings ites (breeding dispersal) or between natal sites and the site of first breeding (natal dispersal) is crucial to the modelingo f populationd ynamics.U nfortunatelyt,h ese aspectso f demographya rep oorly understoodf or avian species in...
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2000
Olmstead, Richard G., Graham, Sean W.
Sequences from 14 slowly evolving chloroplast genes (including three highly conserved introns) were obtained for representative basal angiosperm and seed-plant taxa, using novel primers described here. These data were combined with published sequences from atpB, rbcL, and newly obtained sequences...
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2003
Monzavi, H., Willard, L., Zhang, H., Boyko, R.F., Ranjan, A., Wishart, D.S., Sykes, B.D.
VADAR (Volume Area Dihedral Angle Reporter) is a comprehensive web server for quantitative protein structure evaluation. It accepts Protein Data Bank (PDB) formatted files or PDB accession numbers as input and calculates, identifies, graphs, reports and/ or evaluates a large number (>30) of key...