Abstract
Gray leaf spot (GLS) is a serious fungal disease recently reported on the important turfgrass and forage species, perennial ryegrass (Lolium perenne) caused by Magnaporthe grisea, which also causes rice blast and many other grass diseases. Rice blast is usually controlled by host resistance, but durability of resistance is a problem. Little GLS resistance has been reported in perennial ryegrass; however, work in our lab suggests resistance is present and segregating in an annual x perennial ryegrass mapping population. Quantitative trait locus (QTL) analysis using GLS reaction data along with the linkage map being constructed in our lab has revealed at least two genomic regions associated with QTLs for GLS resistance, and one of the regions appears syntenic with rice linkage group 7.
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Curley, J., Sim, S.C., Jung, G., Leong, S., Warnke, S., Barker, R.E. (2004). QTL Mapping of Gray Leaf Spot Resistance in Ryegrass, and Synteny-based Comparison with Rice Blast Resistance Genes in Rice. In: Hopkins, A., Wang, ZY., Mian, R., Sledge, M., Barker, R.E. (eds) Molecular Breeding of Forage and Turf. Developments in Plant Breeding, vol 11. Springer, Dordrecht. https://doi.org/10.1007/1-4020-2591-2_3
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DOI: https://doi.org/10.1007/1-4020-2591-2_3
Publisher Name: Springer, Dordrecht
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