Abstract
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 pathogenchallenged 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.
Keywords
Cronartium quercuum f.sp. fusiforme,
fusiform rust,
gene-for-gene interactions,
microarray analysis
Citation
Myburg, Henrietta; Morse, Alison M.; Amerson, Henry V.; Kubisiak, Thomas L.; Huber, Dudley; Osborne, Jason A.; Garcia, Saul A.; Nelson, C. Dana; Davis, John M.; Covert, Sarah F.; van Zyle, Leonel M. 2006. Differential gene expression in loblolly pine (
Pinus taeda L.) challenged with the fusiform rust fungus,
Cronartium quercuum f.sp.
fusiforme. Physiological and Molecular Plant Pathology, Vol. 68: 79-91