Differential gene expression in loblolly pine (Pinus taeda L.) challenged with the fusiform rust fungus, Cronartium quercuum f.sp fusiforme

Myburg, H.; Morse, A., M.; Amerson, H., V.; Kubisiak, T., L.; Huber, D.; Osborne, J., A.; Garcia, S., A.; Nelson, C.D.; Davis, J., M.; Covert, S., F.; Van-Zyl, L., M.

Physiological and Molecular Plant Pathology 68(1-3): 79-91


ISSN/ISBN: 0885-5765
DOI: 10.1016/j.pmpp.2006.07.002
Accession: 012850644

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Cronartium quercuum f.sp. fusiforme is the pathogen that incites fusiform rust disease of southern pine species. To date, a number of host resistance genes have been mapped. Although genomic mapping studies have provided valuable information on the genetic basis of disease interactions in this pine-rust pathosystem, the interaction at the molecular level is poorly understood. To further our understanding of this interaction, we implemented a microarray study to examine the differential expression of genes in pathogen-challenged progeny of a full-sib loblolly pine family known to be segregating at a single dominant resistance gene (Fr1). Statistical analyses revealed shifts in gene expression that may reflect discrete stages of gall development.