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| DOI: | 10.1094/PHYTO.2009.99.6.S196 |
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| Web URL(s): | http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2009.99.6.S196#page=7
Last checked: 06/12/2009
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Taylor, T. A.;
Carbone, I.;
Tredway, L. P. |
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| Author Affiliation: | North Carolina State University, Raleigh, North Carolina |
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| Title: | Genetic structure of Sclerotinia homoeocarpa populations from turfgrasses in North America, Asia and Europe |
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| Section: | 2009 southern division meeting abstracts
Other records with the "2009 southern division meeting abstracts" Section
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| Meeting Info.: | Altanta, Georgia: February 1-2, 2009 |
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| Source: | Phytopathology. Vol. 99, No. 6, June Supplement 2009, p. S201. |
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| Publishing Information: | St. Paul, MN: American Phytopathological Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Sclerotinia homoeocarpa; Pathogens; Dollar spot; Comparisons; Genetics
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| Abstract/Contents: | "Sclerotinia homoeocarpa is the fungal pathogen responsible for dollar spot disease on turfgrasses. This pathogen infects all turf species and is found worldwide. Sclerotinia homoeocarpa was first described by F.T. Bennett in 1937. Bennett described the fungus as producing both apothecia and microsclerotia, both of which are not seen today. This has resulted in a scientific debate where most believe the fungus belongs to the family Rutstroemiaceae due to the production of substratal stomata. Isolates of S. homoeocarpa were obtained from turfgrass species collected in the United States, United Kingdom, Italy and Japan. Vegetative compatibility groups (VCGs) were evaluated on PDA amended with red food coloring, and eleven VCGs were identified in the sample population. Four loci (ITS, Beta-tubulin, IGS, and calmodulin) were amplified using PCR and then sequenced via cycle sequencing. Isolates of S. sclerotiorum, Rutstroemia paludosa and R. cuniculi were also included for comparison. All isolates analyzed thus far are distinct from S. homoeocarpa type-isolates described by Bennett in 1937. The results obtained to date indicate that genetic diversity among isolates is dependent on host species rather than geographic location, with isolates from warm- and cool-season turfgrasses separating into distinct clades. Host species is clearly a major factor that determines genetic diversity in populations of S. homoeocarpa causing dollar spot in turfgrasses. Although 10 VCGs were detected among isolates from cool-season (C3) turfgrasses, all have identical ITS, IGS, calmodulin and Beta-tubulin sequences. Additional methods such as mitochondrial gene analysis or microsatellites are needed to detect genetic variation within this group." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Taylor, T. A., I. Carbone, and L. P. Tredway. 2009. Genetic structure of Sclerotinia homoeocarpa populations from turfgrasses in North America, Asia and Europe. Phytopathology. 99(6):p. S201. |
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| DOI: 10.1094/PHYTO.2009.99.6.S196 |
| Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2009.99.6.S196#page=7
Last checked: 06/12/2009
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: b2219736a |
| Find from within TIC:
Digitally in TIC by file name: phytp2009junsoutherndiv |
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