Full TGIF Record # 159815
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Web URL(s):http://archive.lib.msu.edu/tic/ressum/2009/23.pdf
    Last checked: 01/23/2017
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Publication Type:
Author(s):Jung, Geunhwa
Author Affiliation:University of Massachusetts
Title:Quantitative trait loci (QTL) mapping of resistance to gray leaf spot in Lolium
Section:Breeding, genetics, and physiology
Other records with the "Breeding, genetics, and physiology" Section
Source:2009 Turfgrass and Environmental Research Summary. 2009, p. 23.
# of Pages:1
Publishing Information:Far Hills, NJ: United States Golf Association
Keywords:TIC Keywords: Disease control; Disease resistance; Gray leaf spot; Lolium perenne; Quantitative trait loci
Abstract/Contents:Presents a study conducted to "generate populations by cross of resistant clones...with resistant plants to be selected from commercial perennial ryegrass cultivars and breeding lines." Suggests that "perennial ryegrass (Lolium perenne) is a valuable cool-season turfgrass that can be infected with gray leaf spot caused by Magnaporthe grisea." Describes the experiment and the methods used.
See Also:Other Reports from this USGA research project: 2003-18-259
Note:Pictures, color
USGA Summary Points:Significant differences in pathogenicity among 13 gray leaf spot (GG9, GG11, GG12, BL00, LP97, Lin00, 05T-04, 02V-23.1, 04S-01, 06T-02, 11W-03, and 11W-07) and one rice (6082) isolates under growth chamber conditions. Seven recently improved perennial ryegrass cultivars and experimental lines with GLS resistance showed only moderate resistance to the 13 geographically diverse isolates. This result may indicate non-race specific resistance in perennial ryegrass. Preliminary results indicated a marginally significant interaction between gray leaf spot isolates and ryegrass germplasm under growth chamber conditions. However, more inoculation experiments with individual plants rather than a whole cultivar of mixed genotypes are needed to confirm this finding. GLS-resistant plants from the MFA x MFB mapping population will be crossed with Paragon GLR-1R and -2R plants. Those parent plants were transplanted to the field.
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Jung, G. 2009. Quantitative trait loci (QTL) mapping of resistance to gray leaf spot in Lolium. Turfgrass Environ. Res. Summ. p. 23.
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    Last checked: 01/23/2017
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MSU catalog number: b3609415~S39a
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