Abstract
Ectomycorrhizal fungi are known to vary in host range. Some fungi can enter into symbiosis with multiple plant species, while others have restricted host ranges. The aim of this study was to examine variation in host specificity among strains from the basidiomycete Paxillus involutus s. lat. Recent studies have shown that this fungus consists of at least four genetically isolated lineages, phylogenetic species (PS) I (which corresponds to the morphological species Paxillus obscurosporus), PS II (P. involutus s. str.), PS III (Paxillus validus), and PS IV (not yet supported by any reference material). Thirty-five Paxillus strains of PS I to IV were examined in microcosms for their capacity to infect birch (Betula pendula) and spruce (Picea abies). Seventeen strains were compatible and formed mycorrhizae with both tree species. Seven strains were incompatible with both birch and spruce. The gene content in three pairs of incompatible and compatible strains PS I, II, and III were compared using microarray-based comparative genomic hybridizations. Of 4,113 P. involutus gene representatives analyzed, 390 varied in copy numbers in at least one of the three pairwise comparisons. Only three reporters showed significant changes in all three pairwise comparisons, and none of these were changed in a similar way in three comparisons. Our data indicate that changes in host range have occurred frequently and independently among strains in P. obscurosporus, P. involutus s. str., and P. validus. No evidence was obtained demonstrating that these changes have been associated with the gain or loss of similar genes in these three species.
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References
Altschul SF, Gish W, Miller W, Myers EW, Lipman DJ (1990) Basic local alignment search tool. J Mol Biol 215:403–410
Apweiler R, Bairoch A, Wu CH, Barker WC, Boeckmann B, Ferro S, Gasteiger E, Huang H, Lopez R, Magrane M, Martin MJ, Natale DA, O'Donovan C, Redaschi N, Yeh LS (2004) UniProt: the Universal Protein knowledgebase. Nucl Acids Res 32:D115–D119
Ashburner M, Ball CA, Blake JA, Botstein D, Butler H, Cherry JM, Davis AP, Dolinski K, Dwight SS, Eppig JT, Harris MA, Hill DP, Issel-Tarver L, Kasarskis A, Lewis S, Matese JC, Richardson JE, Ringwald M, Rubin GM, Sherlock G (2000) Gene ontology: tool for the unification of biology. The Gene Ontology Consortium. Nat Genet 25:25–29
Brun A, Chalot M, Finlay RD, Söderström B (1995) Structure and function of the ectomycorrhizal association between Paxillus involutus (Batsch) Fr. and Betula pendula (Roth.). I. Dynamics of mycorrhiza formation. New Phytol 129:487–493
Burgess T, Dell B, Malajczuk N (1994) Variation in mycorrhizal development and growth stimulation by 20 Pisolithus isolates inoculated on to Eucalyptus grandis W. Hill ex Maiden. New Phytol 127:731–739
Cairney JWG (1999) Intraspecific physiological variation: implications for understanding functional diversity in ectomycorrhizal fungi. Mycorrhiza 9:125–135
Carreto L, Eiriz MF, Gomes AC, Pereira PM, Schuller D, Santos MA (2008) Comparative genomics of wild type yeast strains unveils important genome diversity. BMC Genomics 9:524
Duddridge JA (1986) The development and ultrastructure of ectomycorrhizas III. Compatible and incompatible interactions between Suillus grevillei (Klotzch) Sing., and 11 species of ectomycorrhizal host in vitro in the absence of exogenous carbohydrate. New Phytol 103:457–464
Dunn B, Levine RP, Sherlock G (2005) Microarray karyotyping of commercial wine yeast strains reveals shared, as well as unique, genomic signatures. BMC Genomics 6:53
Eisen MB, Spellman PT, Brown PO, Botstein D (1998) Cluster analysis and display of genome-wide expression patterns. Proc Natl Acad Sci U S A 95:14863–14868
Ek H, Andersson S, Arnebrant K, Söderström B (1994) Growth and assimilation of NH4+ and NO3- by Paxillus involutus in association with Betula pendula and Picea abies as affected by substrate pH. New Phytol 128:629–637
Finlay RD, Ek H, Odham G, Söderström B (1988) Mycelial uptake, translocation and assimilation of nitrogen from 15N-labelled ammonium by Pinus sylvestris plants infected with four different ectomycorrhizal fungi. New Phytol 110:59–66
Finn RD, Mistry J, Schuster-Bockler B, Griffiths-Jones S, Hollich V, Lassmann T, Moxon S, Marshall M, Khanna A, Durbin R, Eddy SR, Sonnhammer EL, Bateman A (2006) Pfam: clans, web tools and services. Nucl Acids Res 34:D247–D251
Fries N (1985) Intersterility groups in Paxillus involutus. Mycotaxon 24:403–410
Gafur A, Schützendübel A, Langenfeld-Heyser R, Fritz E, Polle A (2004) Compatible and incompetent Paxillus involutus isolates for ectomycorrhiza formation in vitro with poplar (Populus x canescens) differ in H2O2 production. Plant Biol 6:91–99
Goffeau A, Park J, Paulsen IT, Jonniaux JL, Dinh T, Mordant P, Saier MH Jr (1997) Multidrug-resistant transport proteins in yeast: complete inventory and phylogenetic characterization of yeast open reading frames with the major facilitator superfamily. Yeast 13:43–54
Gresham D, Dunham MJ, Botstein D (2008) Comparing whole genomes using DNA microarrays. Nat Rev Genet 9:291–302
Hahn C, Agerer R (1999) Studies on the Paxillus involutus-complex. Nova Hedwigia 69:241–310
Hedh J, Samson P, Erland S, Tunlid A (2008) Multiple gene genealogies and species recognition in the ectomycorrhizal fungus Paxillus involutus. Mycol Res 112:965–975
Hu G, Liu I, Sham A, Stajich JE, Dietrich FS, Kronstad JW (2008) Comparative hybridization reveals extensive genome variation in the AIDS-associated pathogen Cryptococcus neoformans. Genome Biol 9:R41
Johansson T, Le Quéré A, Ahrén D, Söderström B, Erlandsson R, Lundeberg J, Uhlén M, Tunlid A (2004) Transcriptional responses of Paxillus involutus and Betula pendula during formation of ectomycorrhizal root tissue. Mol Plant Microbe Interact 17:202–215
Laiho O (1970) Paxillus involutus as a mycorrhizal symbiont of forest trees. Acta Forest Fenn 106:1–73
Lamhamedi MS, Fortini JA, Kope HH, Kropp BR (1990) Genetic varaition in ectomycorrhiza formation by Pisolithus arhizus on Pinus pinaster and Pinus banksiana. New Phytol 115:689–697
Le Quéré A, Johansson T, Tunlid A (2002) Size and complexity of the nuclear genome of the ectomycorrhizal fungus Paxillus involutus. Fung Genet Biol 36:234–241
Le Quéré A, Schützendübel A, Rajashekar B, Canbäck B, Hedh J, Erland S, Johansson T, Tunlid A (2004) Divergence in gene expression related to variation in host specificity of an ectomycorrhizal fungus. Mol Ecol 13:3809–3819
Le Quéré A, Astrup-Eriksen K, Rajashekar B, Schützendübel A, Canbäck B, Johansson T, Tunlid A (2006) Screening for rapidly evolving genes in the ectomycorrhizal fungus Paxillus involutus using cDNA microarrays. Mol Ecol 15:535–550
Lynch M (2007) The frailty of adaptive hypotheses for the origins of organismal complexity. Proc Natl Acad Sci U S A 104:8597–8604
Manning G, Plowman GD, Hunter T, Sudarsanam S (2002) Evolution of protein kinase signaling from yeast to man. Trends Biochem Sci 27:514–520
Martin F, Aerts A, Ahren D, Brun A, Danchin EG, Duchaussoy F, Gibon J, Kohler A, Lindquist E, Pereda V, Salamov A, Shapiro HJ, Wuyts J, Blaudez D, Buee M, Brokstein P, Canback B, Cohen D, Courty PE, Coutinho PM, Delaruelle C, Detter JC, Deveau A, DiFazio S, Duplessis S, Fraissinet-Tachet L, Lucic E, Frey-Klett P, Fourrey C, Feussner I, Gay G, Grimwood J, Hoegger PJ, Jain P, Kilaru S, Labbe J, Lin YC, Legue V, Le TF, Marmeisse R, Melayah D, Montanini B, Muratet M, Nehls U, Niculita-Hirzel H, Oudot-Le Secq MP, Peter M, Quesneville H, Rajashekar B, Reich M, Rouhier N, Schmutz J, Yin T, Chalot M, Henrissat B, Kues U, Lucas S, Van de PY, Podila GK, Polle A, Pukkila PJ, Richardson PM, Rouze P, Sanders IR, Stajich JE, Tunlid A, Tuskan G, Grigoriev IV (2008) The genome of Laccaria bicolor provides insights into mycorrhizal symbiosis. Nature 452:88–92
Martinez D, Larrondo LF, Putnam N, Gelpke MD, Huang K, Chapman J, Helfenbein KG, Ramaiya P, Detter JC, Larimer F, Coutinho PM, Henrissat B, Berka R, Cullen D, Rokhsar D (2004) Genome sequence of the lignocellulose degrading fungus Phanerochaete chrysosporium strain RP78. Nat Biotechnol 22:695–700
Molina R, Trappe JM (1982) Patterns of ectomycorrhizal host specificity and potential among pacific northwest conifers and fungi. Forest Sci 28:423–458
Molina R, Massicotte H, Trappe JM (1992) Specificity phenomena in mycorrhizal symbiosis: community-ecological consequences and practical implications. In: Allen MF (ed) Mycorrhizal functioning, an interactive plant-fungal process. Chapmann and Hall, New York, pp 357–423
Moran G, Stokes C, Thewes S, Hube B, Coleman DC, Sullivan D (2004) Comparative genomics using Candida albicans DNA microarrays reveals absence and divergence of virulence-associated genes in Candida dubliniensis. Microbiology 150:3363–3382
Nelson DR (1999) Cytochrome P450 and the individuality of species. Arch Biochem Biophys 369:1–10
Rajashekar B, Samson P, Johansson T, Tunlid A (2007) Evolution of nucleotide sequences and expression patterns of hydrophobin genes in the ectomycorrhizal fungus Paxillus involutus. New Phytol 174:399–411
Ridley AJ (2001) Rho family proteins: coordinating cell responses. Trends Cell Biol 11:471–477
Smith SE, Read DJ (eds) (1997) Mycorrhizal symbiosis, 2nd edn. Academic, San Diego
Taylor AF, Alexander I (2005) The ectomycorrhizal symbiosis: life in the real world. Mycologist 19:102–112
Trappe JM (1962) Fungus associates of ectotrophic mycorrhizae. Bot Rev 28:538–606
Tunlid A, Talbot NJ (2002) Genomics of parasitic and symbiotic fungi. Curr Opin Microbiol 5:513–519
Westfall PJ, Ballon DR, Thorner J (2004) When the stress of your environment makes you go HOG wild. Science 306:1511–1512
Winzeler EA, Castillo-Davis CI, Oshiro G, Liang D, Richards DR, Zhou Y, Hartl DL (2003) Genetic diversity in yeast assessed with whole-genome oligonucleotide arrays. Genetics 163:79–89
Wolfinger RD, Gibson G, Wolfinger ED, Bennett L, Hamadeh H, Bushel P, Afshari C, Paules RS (2001) Assessing gene significance from cDNA microarray expression data via mixed models. J Comp Biol 8:625–637
Wong KKY, Montpetit D, Piche Y, Lei J (1990) Root colonization by four closely related genotypes of the ectomycorrhizal basidiomycete Laccaria bicolor (Maire) Orton - comparative studies using electron microscopy. New Phytol 116:669–680
Wösten HA (2001) Hydrophobins: multipurpose proteins. Annu Rev Microbiol 55:625–646
Acknowledgements
This study was supported by grants from the Swedish Research Council (VR) and the Swedish Research Council for Environment, Agricultural Sciences and Spatial Planning (FORMAS). Custom microarrays were produced at the DNA Microarray Resource Center at the BioMedical Center B10 in Lund, and DNA sequencing was performed at the Center of Genomic Ecology at the Ecology Building in Lund. We acknowledge Dr. Björn Canbäck and Balaji Rajashekar for help with bioinformatics. We thank Dr. Susanne Erland for valuable discussion on this work.
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Hedh, J., Johansson, T. & Tunlid, A. Variation in host specificity and gene content in strains from genetically isolated lineages of the ectomycorrhizal fungus Paxillus involutus s. lat.. Mycorrhiza 19, 549–558 (2009). https://doi.org/10.1007/s00572-009-0252-3
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DOI: https://doi.org/10.1007/s00572-009-0252-3