Genetic diversity of the pine pathogen Lecanosticta acicola in Slovenia and Croatia
| Autor: | Danko Diminić, Michael J. Wingfield, Irene Barnes, Barbara Piškur, Tine Hauptman, D. Sadiković, D. Jurc |
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| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
0301 basic medicine host preference paritveni tipi Population Zoology Population genetics Plant Science Horticulture bori 01 natural sciences 03 medical and health sciences Pinus mugo Genetics Blight education mating type education.field_of_study Genetic diversity Phylogenetic tree biology population genetics Outbreak Pinus biology.organism_classification humanities elongation factor 030104 developmental biology Lecanosticta acicola Genetic structure brown spot needle blight udc:630*44 rjavenje borovih iglic populacijska genetika Agronomy and Crop Science geographic locations 010606 plant biology & botany |
| Zdroj: | Plant Pathology, vol. 68, no. 6, pp. 1120-1131, 2019. |
| ISSN: | 1365-3059 0032-0862 |
| DOI: | 10.1111/ppa.13017 |
| Popis: | Brown spot needle blight (BSNB), a disease of pine trees caused by the fungus Lecanosticta acicola, has been known in Slovenia since 2008 and in Croatia since 1975. Recent outbreaks in Slovenia prompted this study to compare L. acicola populations in these two neighbouring European countries. Sixty-nine isolates collected from three pine species (Pinus mugo, P. halepensis and P. nigra) were used to determine the phylogenetic relationships, genetic structure, and reproductive strategy of the pathogen. EF1-a sequences showed that Slovenian and Croatian isolates share a common ancestry with individuals from Central and Northern Europe. Population structure analysis revealed four distinct population clusters of L. acicola in these two countries, generally corresponding to their respective geographic location and host. An unequal ratio of mating types and a low overall genetic diversity in the population indicated a strong influence of asexual reproduction. Although some of the oldest recorded European occurrences of BSNB are from Croatia, this study provided no evidence that the population studied in Croatia was the source of the sampled outbreaks in Slovenia. Recent outbreaks of L. acicola in Slovenia are most likely due to introductions from other, yet to be identified, sources. |
| Databáze: | OpenAIRE |
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