Fine-scale genetic structure of natural Tuber aestivum sites in southern Germany

Autor: Ulrich Stobbe, Martina Peter, Ulf Büntgen, Willy Tegel, Barbara Moser, Barbara Meier, Simon Egli, Francis Martin, Claude Murat, Virginie Molinier, Ludger Sproll, Andri Baltensweiler
Přispěvatelé: Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Interactions Arbres-Microorganismes (IAM), Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL), Oeschger Centre for Climate Change Research (OCCR), University of Bern, Global Change Research Centre (CzechGlobe), Deutsch Truffelbaume, University of Freiburg, COST action Project FP1203, Swiss State Secretariat for Education Research and Innovation (SERI), WSL-internal 'DITREC' project, Ernst Gohner Stiftung 2012-1961/3, SERI, French National Research Agency (ANR) as part of the 'Investissements d'Avenir' program (Lab of Excellence ARBRE) ANR-11-LABX-0002-01, TUBEREVOL project, Swiss Federal Institute for Forest, Snow and Avalanche Research WSL, Université de Lorraine (UL)-Institut National de la Recherche Agronomique (INRA)
Jazyk: angličtina
Rok vydání: 2016
Předmět:
0106 biological sciences
[SDV]Life Sciences [q-bio]
MELANOSPORUM
Population genetics
Plant Science
01 natural sciences
forest
Tuber aestivum
forêt
Germany
Mycorrhizae
DNA
Fungal
education.field_of_study
Truffle
biology
Ecology
General Medicine
long terme
site naturel
Genetic structure
europe
Genetic Markers
Genotype
Population
GENUS TUBER
Population biology
010603 evolutionary biology
Propagule
Ascomycota
culture durable
Genetics
POPULATION-GENETICS
Fruiting Bodies
Fungal
education
Molecular Biology
Ecology
Evolution
Behavior and Systematics
550 Earth sciences & geology
VEGETATIVE INCOMPATIBILITY
Genetic Variation
ECTOMYCORRHIZAL COMMUNITIES
TRUFFLE CULTIVATION
15. Life on land
500 Science
biology.organism_classification
Genes
Mating Type
Fungal
LIFE-CYCLE
tuber aestivum
structure génétique
MATING-TYPE DISTRIBUTION
allemagne
COMPUTER-PROGRAM
Biological dispersal
BLACK TRUFFLES
010606 plant biology & botany
Zdroj: Molinier, Virginie; Murat, Claude; Baltensweiler, Andri; Büntgen, Ulf; Martin, Francis; Meier, Barbara; Moser, Barbara; Sproll, Ludger; Stobbe, Ulrich; Tegel, Willy; Egli, Simon; Peter, Martina (2016). Fine-scale genetic structure of natural Tuber aestivum sites in southern Germany. Mycorrhiza, 26(8), pp. 895-907. Springer 10.1007/s00572-016-0719-y
Mycorrhiza
Mycorrhiza, Springer Verlag, 2016, 26 (8), pp.895-907. ⟨10.1007/s00572-016-0719-y⟩
ISSN: 0940-6360
1432-1890
DOI: 10.1007/s00572-016-0719-y
Popis: Although the Burgundy truffle (Tuber aestivum) is an ectomycorrhizal fungus of important economic value, its subterranean life cycle and population biology are still poorly understood. Here, we determine mating type and simple sequence repeat (SSR) maternal genotypes of mapped fruiting bodies to assess their genetic structure within two naturally colonized forest sites in southern Germany. Forty-one genotypes were identified from 112 fruiting bodies. According to their mating types, the maternal genotypes were aggregated only in one population. Genotypic diversity of individuals that mostly were small and occurred in 1 out of 2 years of sampling was high. Although these results suggested a ruderal colonization strategy, some genets spread several hundred meters. This result indicates that, besides sexual spore dispersal, vegetative growth or spreading by mycelial propagules contributes to dissemination. In one site, fewer individuals with a tendency to expand genets belonging to only one genetic group were observed. In the second site, numerous small individuals were found and were grouped into two clearly differentiated genetic groups that were spatially intermingled. Forest characteristics and disturbances are possible reasons for the observed genetic patterns. Our findings contribute to a better understanding of the biology of one of the most widespread and commercially important truffle species. This knowledge is critical for establishing and maintaining sustainable long-term truffle cultivations.
Databáze: OpenAIRE
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