Full TGIF Record # 195939
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DOI:10.1111/j.1439-0523.2011.01891.x
Web URL(s):http://onlinelibrary.wiley.com/doi/10.1111/j.1439-0523.2011.01891.x/full
    Last checked: 01/12/2012
http://onlinelibrary.wiley.com/doi/10.1111/j.1439-0523.2011.01891.x/pdf
    Last checked: 01/12/2012
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Publication Type:
i
Refereed
Author(s):Rotter, David; Merewitz, Emily; Huang, Bingru; Belanger, Faith C.
Author Affiliation:Department of Plant Biology and Pathology, School of Environmental and Biological Sciences, Rutgers University, New Brunswick, NJ
Title:Chromosomal regions associated with dollar spot resistance in colonial bentgrass
Source:Plant Breeding. Vol. 131, No. 1, February 2012, p. 193-197.
Publishing Information:Berlin: P. Parey
# of Pages:5
Keywords:TIC Keywords: Agrostis stolonifera; Agrostis tenuis; Disease resistance; Dollar spot; Genetic linkage; Interspecific hybridization; Quantitative trait loci; Sclerotinia homoeocarpa
Abstract/Contents:"Interspecific hybridization between colonial bentgrass and creeping bentgrasses may be a useful approach for introducing resistance to Sclerotinia homoeocarpa, the causal agent of dollar spot disease, into creeping bentgrass. An interspecific backcross population of 271 genotypes was evaluated for dollar spot in a 2-year field study, and 11% of the genotypes were resistant to dollar spot. In the subset of the backcross population used for genetic linkage mapping, some resistant plants were identified, but no quantitative trait locus (QTL) was detected. A model of qualitative 3-gene recessive epistasis for dollar spot resistance in colonial bentgrass was proposed, and the limitations of QTL analysis to detect genomic regions conferring multigenic qualitative traits were examined. In the simulations, monogenic traits and 2-gene recessive epistatic traits were readily detectable by QTL analysis, whereas for 3-gene recessive epistasis, a QTL was not detectable. As an alternative to QTL analysis, screening of resistant plants from the backcross population for genomic regions held in common suggests that linkage groups 2A1 and 3A1 are possibly genomic locations of dollar spot resistance in colonial bentgrass."
Language:English
References:29
Note:Tables
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Rotter, D., E. Merewitz, B. Huang, and F. C. Belanger. 2012. Chromosomal regions associated with dollar spot resistance in colonial bentgrass. Plant Breed. 131(1):p. 193-197.
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DOI: 10.1111/j.1439-0523.2011.01891.x
Web URL(s):
http://onlinelibrary.wiley.com/doi/10.1111/j.1439-0523.2011.01891.x/full
    Last checked: 01/12/2012
http://onlinelibrary.wiley.com/doi/10.1111/j.1439-0523.2011.01891.x/pdf
    Last checked: 01/12/2012
    Requires: PDF Reader
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