Full TGIF Record # 123705
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Web URL(s):http://turf.rutgers.edu/research/abstracts/symposium2007.pdf#page=25
    Last checked: 11/26/2007
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Publication Type:
i
Report
Author(s):Jo, Young-Ki; Barker, Reed; Pfender, William; Jung, Geunhwa
Author Affiliation:Jo, and Jung: Department of Plant, Soil and Insect Sciences, University of Massachusetts, Amherst, Massachusetts; Barker, and Pfender: United States Department of Agriculture - Agricultural Research Service, Oregon State University, Corvallis, Oregon
Title:A comparative analysis of pathogen-specific quantitative disease resistance genes in ryegrass with cereal crops
Section:Plenary presentations
Other records with the "Plenary presentations" Section
Meeting Info.:Cook College, Rutgers, NJ: January 11-12, 2007
Source:Proceedings of the Sixteenth Annual Rutgers Turfgrass Symposium. Vol. 16, 2007, p. 24-25.
Publishing Information:New Brunswick, NJ: Center for Turfgrass Science, Cook College, Rutgers, The State University of New Jersey
# of Pages:2
Keywords:TIC Keywords: COmparisons; Disease resistance; Genetic resistance; Lolium perenne; Cereals; Pathogens; Genomes; Fungal diseases
Abstract/Contents:Discusses disease resistance in ryegrass with cereal crops. Explains that "perennial ryegrass (Lolium perenne L.) is one of the important forage and turf grass species in temperate climate zones worldwide...Gray leaf spot (GLS) caused by the fungal ascomycete Pyricularia oryzae Cavara [teleomorph Magnaporthe oryzae B. Couch, formerly known as M. grisea (Hebert) Barr] has become a serious problem on perennial ryegrass fairways and roughs since it was first reported on golf course fairways in Pennsylvania in 1992. The causal agent, M. grisea, also causes blast disease on rice, as well as foliar disease on many grasses, such as blast on wheat and barley." Suggests that "breeding disease resistant cultivars is one of the best disease management strategies in ceral crops, although this may take considerable time and understanding of the genetics of host resistance...Development of molecular markers tightly linked to disease resistance traits provides a means to pyramid disease resistant genes in elite cultivars. This gene-pyramiding strategy exploits genes conferring quantitative resistance as well as qualitative resistance, which is ideal for managing different races or multiple diseases and precluding rapid breakdown of resistance by pathogens, which would be more likely from a few complete-race specific genes." Mentions a quantitative trait loci (QTL) analysis conducted "to determine partial resistance to four different diseases: leaf spot (B. sorokiniana), stem rust (P. graminis), gray leaf spot (M. grisea), and crown rust (P. coronata)." Concludes that "the conserved synteny of disease resistance loci will facilitate transferring genetic resources of disease resistance between ryegrass and cerals to accommodate breeding needs for developing multiple diesease resistance cultivars."
Language:English
References:0
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Jo, Y.-K., R. Barker, W. Pfender, and G. Jung. 2007. A comparative analysis of pathogen-specific quantitative disease resistance genes in ryegrass with cereal crops. Proc. Annu. Rutgers Turfgrass Symp. 16:p. 24-25.
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http://turf.rutgers.edu/research/abstracts/symposium2007.pdf#page=25
    Last checked: 11/26/2007
    Requires: PDF Reader
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MSU catalog number: SB 433 .R88
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