Interactions between pararetroviruses and their plant hosts

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dc.contributor.authorKalischuk, Melanie
dc.contributor.supervisorJohnson, Dan L.
dc.date.accessioned2015-05-04T21:36:03Z
dc.date.available2015-05-04T21:36:03Z
dc.date.issued2015
dc.degree.levelPh.Den_US
dc.description.abstractTo defend themselves against all types of pathogens, plants have evolved an array of defense strategies to prevent or attenuate invasion by potential attackers. Brassica rapa exposed to 50 ng purified Cauliflower mosaic virus (CaMV; Family Caulimoviridae, genus Caulimovirus) virions prior to the bolting stage produced significantly larger seeds and greater CaMV resistance than mock-inoculated treatment. Differences in defense pathways involving fatty acids, primary and secondary metabolites were detected in pathogen resistant and susceptible progeny. To extend the interplay of host and pathogen interactions involving members of the dsDNA plant viruses, the Rubus yellow net virus (RYNV) genome was characterised and contained numerous nucleic acid binding motifs, multiple zinc finger-like sequences and domains associated with cellular signaling. Silencing as a mechanism to combat virus accumulation was indicated by an uneven genome-wide distribution of 22-nt length virus-derived small RNAs with strong clustering to small regions distributed over both strands of the RYNV genome.en_US
dc.embargoNoen_US
dc.identifier.urihttps://hdl.handle.net/10133/3671
dc.language.isoen_CAen_US
dc.proquest.subject0480en_US
dc.proquest.subject0369en_US
dc.proquest.subject0309en_US
dc.proquestyesYesen_US
dc.publisherLethbridge, Alta. : University of Lethbridge, Dept. of Economicsen_US
dc.publisher.departmentDepartment of Biological Sciencesen_US
dc.publisher.facultyArts and Scienceen_US
dc.relation.ispartofseriesThesis (University of Lethbridge. Faculty of Arts and Science)en_US
dc.subjectBrassica rapaen_US
dc.subjectCauliflower mosaic virusen_US
dc.subjectdisease resistanceen_US
dc.subjectRubus yellow net virusen_US
dc.titleInteractions between pararetroviruses and their plant hostsen_US
dc.typeThesisen_US
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