A major disease damaging seedlings of Pinus palustris is caused by the fungus Mycosphaerella dearnessii. Population structure of this pathogen was studied in a population in Mississippi. High genetic diversity (0.65) was measured using microsatellite markers and coincides with the high number of vegetative compatibly groups observed. A 30 Mb genome sequence for a single isolate of M. dearnessii was assembled, representing 65% of the estimated genome size. Nearly all (93%) of the core set of genes present in eukaryotes were detected from a total of 10,996 predicted genes. A total of 853 enzymatic associations were identified along with several genes homologous to pathogenic genes in other fungal pathogens. These results provide insights into the infection process and host-pathogen interactions. Further investigating this pathosystem will lead to effective disease management strategies.
| Identifer | oai:union.ndltd.org:MSSTATE/oai:scholarsjunction.msstate.edu:td-5755 |
| Date | 11 December 2015 |
| Creators | Bartlett, Benjamin Douglas |
| Publisher | Scholars Junction |
| Source Sets | Mississippi State University |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | Theses and Dissertations |
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