Samils, Berit and Kaitera, Juha and Persson, Torgny and Stenlid, Jan and Barklund, Pia
(2021).
Relationship and genetic structure among autoecious and heteroecious populations of Cronartium pini in northern Fennoscandia.
Fungal Ecology. 50
, 101032
[Research article]
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Abstract
Epidemics of Scots pine blister rust, caused by Cronartium pini, have become an increasing problem in northern Finland and Sweden. The biology of the rust fungus is complex, with two different life cycle forms that cannot be morphologically distinguished, and it is unclear to what extent the two forms contribute to the epidemics. Genetic structure of fourteen populations of C. pini were investigated in Fennoscandia. Distinction between the two life cycle forms, a heteroecious and an autoecious one, was made by determining zygosity using microsatellite markers, and AFLP markers were developed to analyse population genetic relationships. The results showed that the two life cycle forms are clearly differentiated and occur in separate populations. Within the life cycle forms, geographic differentiation was evident, probably due to restricted gene flow as well as connection with different alternating hosts. The host-alternating form dominated in the epidemic regions in northern Fennoscandia. Implications for silvicultural practices are discussed. (C) 2021 The Authors. Published by Elsevier Ltd.
| Authors/Creators: | Samils, Berit and Kaitera, Juha and Persson, Torgny and Stenlid, Jan and Barklund, Pia | ||||||
|---|---|---|---|---|---|---|---|
| Title: | Relationship and genetic structure among autoecious and heteroecious populations of Cronartium pini in northern Fennoscandia | ||||||
| Series Name/Journal: | Fungal Ecology | ||||||
| Year of publishing : | 2021 | ||||||
| Volume: | 50 | ||||||
| Article number: | 101032 | ||||||
| Number of Pages: | 10 | ||||||
| Publisher: | ELSEVIER SCI LTD | ||||||
| ISSN: | 1754-5048 | ||||||
| Language: | English | ||||||
| Publication Type: | Research article | ||||||
| Article category: | Scientific peer reviewed | ||||||
| Version: | Published version | ||||||
| Copyright: | Creative Commons: Attribution 4.0 | ||||||
| Full Text Status: | Public | ||||||
| Subjects: | (A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology | ||||||
| Keywords: | Cronartium flaccidum, Peridermium pini, Endocronartium pini, Pinus sylvestris, Scots pine blister rust, Resin-top disease, Stem rust, Population genetics, Genetic diversity, Alternate hosts | ||||||
| URN:NBN: | urn:nbn:se:slu:epsilon-p-111392 | ||||||
| Permanent URL: | http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-111392 | ||||||
| Additional ID: |
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| ID Code: | 23247 | ||||||
| Faculty: | S - Faculty of Forest Sciences | ||||||
| Department: | (NL, NJ) > Dept. of Forest Mycology and Plant Pathology (S) > Dept. of Forest Mycology and Plant Pathology | ||||||
| Deposited By: | SLUpub Connector | ||||||
| Deposited On: | 12 Apr 2021 10:23 | ||||||
| Metadata Last Modified: | 12 Apr 2021 10:31 |
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