Bulked fusiform rust inocula and Fr gene interactions in loblolly pine

Fikret Isik; Henry Amerson; Saul Garcia; Ross Whetten; Steve McKeand

Treesearch

Bulked fusiform rust inocula and Fr gene interactions in loblolly pine

Informally Refereed

Authors:

Fikret Isik, Henry Amerson, Saul Garcia, Ross Whetten, Steve McKeand

Year:

2012

Type:

General Technical Report

Station:

Pacific Southwest Research Station

Source:

In: Sniezko, Richard A.; Yanchuk, Alvin D.; Kliejunas, John T.; Palmieri, Katharine M.; Alexander, Janice M.; Frankel, Susan J., tech. coords. Proceedings of the fourth international workshop on the genetics of host-parasite interactions in forestry: Disease and insect resistance in forest trees. Gen. Tech. Rep. PSW-GTR-240. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture. p. 217

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Abstract

Fusiform rust disease in loblolly (Pinus taeda L.) and slash (Pinus elliottii Engelm. var elliottii) pine plantations in the southern United States causes multi-million dollar annual losses. The disease is endemic to the region. The fusiform rust fungus (Cronartium quercuum sp. fusiforme) infects young pine trees and develops galls on stems and branches. Single pathogen gene and single host (pine) gene interactions can predict phenotype (disease expression) with high accuracy (Wilcox et al. 1996). There are nine known pathotype-specific Fr genes in seven loblolly pine families. The R alleles condition resistance to specific genotypes of the fungal pathogen while r alleles do not condition for resistance.

Parent Publication

Proceedings of the fourth international workshop on the genetics of host-parasite interactions in forestry: Disease and insect resistance in forest trees

Keywords

forest disease and insect resistance, evolutionary biology, climate change, durable resistance

Citation

Isik, Fikret; Amerson, Henry; Garcia, Saul; Whetten, Ross; McKeand, Steve. 2012. Bulked fusiform rust inocula and Fr gene interactions in loblolly pine. In: Sniezko, Richard A.; Yanchuk, Alvin D.; Kliejunas, John T.; Palmieri, Katharine M.; Alexander, Janice M.; Frankel, Susan J., tech. coords. Proceedings of the fourth international workshop on the genetics of host-parasite interactions in forestry: Disease and insect resistance in forest trees. Gen. Tech. Rep. PSW-GTR-240. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture. p. 217.