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| DOI: | 10.1094/PHYTO-95-0463 |
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| Web URL(s): | http://apsjournals.apsnet.org/doi/pdfplus/10.1094/PHYTO-950463
Last checked: 08/25/2010
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Tredway, L. P.;
Stevenson, K. L.;
Burpee, L. L. |
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| Author Affiliation: | Treadway and Stevenson: Department of Plant Pathology, University of Georgia, Athens, Georgia; Burpee: Department of Plant Pathology, North Carolina State University, Raleigh, North Carolina |
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| Title: | Genetic structure of Magnaporhte grisea populations associated with St. Augutinegrass and tall fescue in Georgia |
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| Section: | Population biology
Other records with the "Population biology" Section
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| Source: | Phytopathology. Vol. 95, No. 5, May 2005, p. 463-471. |
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| Publishing Information: | St. Paul, MN: American Phytopathological Society |
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| # of Pages: | 9 |
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| Keywords: | TIC Keywords: Pyricularia grisea; Stenotaphrum secundatum; Festuca arundinacea; Amplification fragment length polymorphisms; Comparisons; Genetic variability; Molecular genetics
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| Geographic Terms: | Georgia |
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| Abstract/Contents: | "Amplified fragment length polymorphisims (AFLPs) were used to establish phylogenetic relationships within Magnaporthe grisea and determine the genetic structure of M. grisea populations associated with tall fescue and St. Augustinegrass in Georgia. Sixteen clonal lineages were identified in a sample population of 948 isolates. Five lineages were isolated from tall fescue (E, G1, G2, G4, and H), with lineage G4 comprising 90% of the population. Isolates from tall fescue were closely related to those from perennial ryegrass, weeping lovegrass, and wheat. Two M. grisea lineages were isolated form St. Augustinegrass (C and K), with lineage C comprising 99.8% of the population. Populations from crabgrass were dominated (98%) by lineage K, but also contained a single lineage C isolate. Haplotype diversity indices ranged from 0.00 to 0.29 in tall fescue populations and from 0.00 to 0.04 in St. Augustinegrass populations. Selection due to host species was the primary factor determining population structure according to molecular variance; host cultivar and geographical region had no siginifcant effect. The host range of M. grisea lineages from turfgrasses was determined in growth chamber experiments and supports the promintant role of host species in determining the genetic structure of M. grisea from turfgrasses in Georgia." |
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| Language: | English |
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| References: | 33 |
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| Note: | Pictures, b/w
Figures
Maps
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Tredway, L. P., K. L. Stevenson, and L. L. Burpee. 2005. Genetic structure of Magnaporhte grisea populations associated with St. Augutinegrass and tall fescue in Georgia. Phytopathology. 95(5):p. 463-471. |
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| DOI: 10.1094/PHYTO-95-0463 |
| Web URL(s):
http://apsjournals.apsnet.org/doi/pdfplus/10.1094/PHYTO-950463
Last checked: 08/25/2010
Requires: PDF Reader |
| 
MSU catalog number: SB 599 .P48 |
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