Abstract
Tuber himalayense is a species of edible Asiatic black truffle which is sister to Tuber indicum. Local populations contribute significantly to the reproduction of truffles, but fundamental data of fine-scale genetic structure is lacking in Asiatic truffle species. In this study, we provide the first report on the genotypic diversity and spatial fruiting pattern of an Asiatic truffle T. himalayense, in two spontaneous productive truffle grounds 140 m apart from one another in Yamanashi, Japan. Ascocarps were collected from 2004 to 2009 and in 2011. The spatial distribution of samples was recorded and genotypic diversity of the fungal individuals was examined using 15 newly developed and 4 existing simple sequence repeat (SSR) markers. The spatial distribution analyses suggested non-random, year-specific aggregation patterns of ascocarps in both plots. However, no consistent tendency was observed across the entire sampling period, with fruiting positions showing neither an obvious expansion nor a steady displacement. Although only a single SSR genotype, representing one gleba-forming maternal individual, was detected, the genotype was further divided into two different mating types, suggesting multiple, closely related individuals that were indistinguishable using the SSR analysis. The results indicated strong founding effects along with high inbreeding within populations, likely due to the limited dispersal opportunities into these sites. Despite low genetic diversity in the truffle grounds, the plots remained productive over the sampling years, indicating that low genetic diversity does not necessarily have an adverse effect on truffle production, at least not during a period of several years.
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The datasets and codes generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.
References
Arnaud-Haond S, Duarte CM, Alberto F, Serrao EA (2007) Standardizing methods to address clonality in population studies. Mol Ecol 16:5115–5139
Baddeley A, Rubak E, Turner R (2015) Spatial point patterns: methodology and applications with R. Chapman and Hall/CRC Press, London
Belfiori B, Riccioni C, Paolocci F, Rubini A (2013) Mating type locus of Chinese black truffles reveals heterothallism and the presence of cryptic species within the T. indicum species complex. PLoS One 8:e82353
Belfiori B, Riccioni C, Paolocci F, Rubini A (2016) Characterization of the reproductive mode and life cycle of the whitish truffle T. borchii. Mycorrhiza 26(6):515–527
Bertault G, Rousset F, Fernandez D, Berthomieu A, Hochberg ME, Callot G, Raymond M (2001) Population genetics and dynamics of the black truffle in a man-made truffle field. Heredity 86:451
Besag J (1977) Contribution to the discussion on Dr Ripley’s paper. J Roy Stat Soc B 39:193–195
Bonito GM, Gryganskyi AP, Trappe JM, Vilgalys R (2010) A global meta-analysis of Tuber ITS rDNA sequences: species diversity, host associations and long-distance dispersal. Mol Ecol 19:4994–5008
Brownstein MJ, Carpten JD, Smith JR (1996) Modulation of non-templated nucleotide addition by Taq DNA polymerase: primer modifications that facilitate genotyping. Biotechniques 20:1004–1010
De la Varga H, Le Tacon F, Lagoguet M, Todesco F, Varga T, Miquel I, Barry-Etienne D, Robin C, Halkett F, Martin F, Murat C (2017) Five years investigation of female and male genotypes in Périgord black truffle (Tuber melanosporum Vittad.) revealed contrasted reproduction strategies. Environ Microbiol 19:2604–2615
Feng B, Zhao Q, Xu J, Qin J, Yang ZL (2016) Drainage isolation and climate change-driven population expansion shape the genetic structures of Tuber indicum complex in the Hengduan Mountains region. Sci Rep-UK 6:21811
Glenn TC, Schable NA (2005) Isolating microsatellite DNA loci. In: Methods in enzymology, vol 395. Academic Press, pp 202–222
Grupe AC, Sulzbacher MA, Grebenc T, Healy R, Bonito G, Smith ME (2018) Tuber brennemanii and Tuber floridanum: two new Tuber species are among the most commonly detected ectomycorrhizal taxa within commercial pecan (Carya illinoinensis) orchards. Mycologia 110:780–790
Hall TA (1999) BioEdit: a user-friendly biological sequence alignment editor and analysis program for Windows 95/98/NT. Nucleic Acids Symp Ser 41:95–98
Hall IR, Brown GT, Zambonelli A (2007) Taming the truffle. The history lore and science of the ultimate mushroom. Timber, Portland
Healy RA, Smith ME, Bonito GM, Pfister DH, Ge ZW, Guevara GG, Williams G, Stafford K, Kumar L, Lee T, Hobart C, Trappe J, Vilgalys R, McLaughlin DJ (2013) High diversity and widespread occurrence of mitotic spore mats in ectomycorrhizal Pezizales. Mol Ecol 22:1717–1732
Hosaka K, Uno K (2013) Assessment of the DNA quality in mushroom specimens: a recovery of the whole ITS sequence from fragmented DNA of the type specimen. Bull Natl Museum Nat Sci Ser B Bot 39:53–60
Hu HT, Wang Y, Hu BY (2005) Cultivation of Tuber formosanum on limed soil in Taiwan. New Zeal J Crop Hort 33:363–366
Iotti M, Leonardi M, Lancellotti E, Salerni E, Oddis M, Leonardi P, Perini C, Pacioni G, Zambonelli A (2014) Spatio-temporal dynamic of Tuber magnatum mycelium in natural truffle grounds. PLoS One 9:e115921
Kinoshita A, Nara K, Sasaki H, Feng B, Obase K, Yang ZL, Yamanaka T (2018) Using mating-type loci to improve taxonomy of the Tuber indicum complex, and discovery of a new species, T longispinosum. PLoS ONE 13:e0193745
Lande R (1988) Genetics and demography in biological conservation. Science 241:1455–1460
Leonardi P, Murat C, Puliga F, Iotti M, Zambonelli A (2020) Ascoma genotyping and mating type analyses of mycorrhizas and soil mycelia of Tuber borchii in a truffle orchard established by mycelial inoculated plants. Environ Microbiol 22:964–975
Linde CC, Selmes H (2012) Genetic diversity and mating type distribution of Tuber melanosporum and their significance to truffle cultivation in artificially planted truffieres in Australia. Appl Environ Microbiol 78:6534–6539
Lister DL, Bower MA, Howe CJ, Jones MK (2008) Extraction and amplification of nuclear DNA from herbarium specimens of emmer wheat: a method for assessing DNA preservation by maximum amplicon length recovery. Taxon 57:254–258
Liu B, Fischer C, Bonet JA, Olivera A, Inchusta A, Colinas C (2014) Pattern of Tuber melanosporum extramatrical mycelium expansion over a 20-year chronosequence in Quercus ilex-truffle orchards. Mycorrhiza 24:47–54
Martin F, Kohler A, Murat C, Balestrini R, Coutinho PM, Jaillon O, Montanini B, Morin E, Noel B, Percudani R, Porcel B, Rubini A, Amicucci A, Amselem J, Anthouard V, Arcioni S, Artiguenave F, Aury JM, Ballario P, Bolchi A, Brenna A, Brun A, Buée M, Cantarel B, Chevalier G, Couloux A, Da Silva C, Denoeud F, Duplessis S, Ghignone S, Hilselberger B, Iotti M, Marçais B, Mello A, Miranda M, Pacioni G, Quesneville H, Riccioni C, Ruotolo R, Splivallo R, Stocchi V, Tisserant E, Viscomi AR, Zambonelli A, Zampieri E, Henrissat B, Lebrun MH, Paolocci F, Bonfante P, Ottonello S, Porcel B (2010) Périgord black truffle genome uncovers evolutionary origins and mechanisms of symbiosis. Nature 464:1033–1038
Molinier V, Bouffaud ML, Castel T, Mounier A, Colombet A, Recorbet G, Frochot H, Wipf D (2013) Monitoring the fate of a 30-year-old truffle orchard in Burgundy: from Tuber melanosporum to Tuber aestivum. Agrofor Syst 87:1439–1449
Molinier V, Murat C, Baltensweiler A, Büntgen U, Martin F, Meier B, Moser B, Sproll L, Stobbe U, Tegel W, Egli S, Peter M (2016) Fine-scale genetic structure of natural Tuber aestivum sites in southern Germany. Mycorrhiza 26:895–907
Murat C, Rubini A, Riccioni C, De la Varga H, Akroume E, Belfiori B, Guaragno M, Le Tacon F, Robin C, Halkett F, Martin F, Paolocci F (2013) Fine-scale spatial genetic structure of the black truffle (Tuber melanosporum) investigated with neutral microsatellites and functional mating type genes. New Phytol 199:176–187
Narimatsu M, Koiwa T, Masaki T, Sakamoto Y, Ohmori H, Tawaraya K (2015) Relationship between climate, expansion rate, and fruiting in fairy rings (‘shiro’) of an ectomycorrhizal fungus Tricholoma matsutake in a Pinus densiflora forest. Fungal Ecol 15:18–28
Paolocci F, Rubini A, Riccioni C, Arcioni S (2006) Reevaluation of the life cycle of Tuber magnatum. Appl Environ Microbiol 72:2390–2393
Qiao P, Tian W, Liu P, Yu F, Chen J, Deng X, Wan S, Wang R, Wang Y, Guo H (2018) Phylogeography and population genetic analyses reveal the speciation of the Tuber indicum complex. Fungal Genet Biol 113:14–23
R Core Team (2020) R: a language and environment for statistical computing. R Foundation for Statistical Computing, Vienna https://www.R-project.org/
Riccioni C, Belfiori B, Rubini A, Passeri V, Arcioni S, Paolocci F (2008) Tuber melanosporum outcrosses: analysis of the genetic diversity within and among its natural populations under this new scenario. New Phytol 180:466–478
Ripley BD (1977) Modelling spatial patterns. J Roy Stat Soc B Met 39:172–192
Ripley BD (1991) Statistical inference for spatial processes. Cambridge university press
Roux C, Séjalon-Delmas N, Martins M, Parguey-Leduc A, Dargent R, Bécard G (1999) Phylogenetic relationships between European and Chinese truffles based on parsimony and distance analysis of ITS sequences. FEMS Microbiol Lett 180:147–155
Rubini A, Belfiori B, Riccioni C, Arcioni S, Martin F, Paolocci F (2011a) Tuber melanosporum: mating type distribution in a natural plantation and dynamics of strains of different mating types on the roots of nursery-inoculated host plants. New Phytol 189:723–735
Rubini A, Belfiori B, Riccioni C, Tisserant E, Arcioni S, Martin F, Paolocci F (2011b) Isolation and characterization of MAT genes in the symbiotic ascomycete Tuber melanosporum. New Phytol 189:710–722
Sambrook J, Fritsch EF, Maniatis T (1989) Molecular cloning, a laboratory manual, 2nd edn. Cold Spring Harbor Laboratory Press, New York
Schneider-Maunoury L, Leclercq S, Clément C, Covès H, Lambourdiere J, Sauve M, Richard F, Selosse MA, Taschen E (2018) Is Tuber melanosporum colonizing the roots of herbaceous, non-ectomycorrhizal plants? Fungal Ecol 31:59–68
Schneider-Maunoury L, Deveau A, Moreno M, Todesco F, Belmondo S, Murat C, Courty PE, Jakalski M, Selosse MA (2020) Two ectomycorrhizal truffles, Tuber melanosporum and T. aestivum, endophytically colonise roots of non-ectomycorrhizal plants in natural environments. New Phytol 225:2542–2556
Selosse MA (2020) Truffles. Curr Biol 30:R382–R383
Selosse MA, Taschen E, Giraud T (2013) Do black truffles avoid sexual harassment by linking mating type and vegetative incompatibility? New Phytol 199:10–13
Selosse MA, Schneider-Maunoury L, Taschen E, Rousset F, Richard F (2017) Black truffle, a hermaphrodite with forced unisexual behaviour. Trends Microbiol 25:784–787
Suz LM, Martín MP, Oliach D, Fischer CR, Colinas C (2008) Mycelial abundance and other factors related to truffle productivity in Tuber melanosporum-Quercus ilex orchards. FEMS Microbiol Lett 285:72–78
Taschen E, Rousset F, Sauve M, Benoit L, Dubois MP, Richard F, Selosse MA (2016) How the truffle got its mate: insights from genetic structure in spontaneous and planted Mediterranean populations of Tuber melanosporum. Mol Ecol 25:5611–5627
Urban A, Neuner-Plattner I, Krisai-Greilhuber I, Haselwandter K (2004) Molecular studies on terricolous microfungi reveal novel anamorphs of two Tuber species. Mycol Res 108:749–758
Valiére N (2002) GIMLET: a computer program for analysing genetic individual identification data. Mol Ecol Notes 2:377–379
Waits LP, Luikart G, Taberlet P (2001) Estimating the probability of identity among genotypes in natural populations cautions and guidelines. Mol Ecol 10:249–256
Wang X (2012) Truffle cultivation in China. In: Edible Ectomycorrhizal mushrooms. Springer, Berlin, Heidelberg, pp 227–240
Zambonelli A, Iotti M, Murat C (eds) (2016) True truffle (Tuber spp.) in the world: soil ecology, systematics and biochemistry, vol 47. Springer, Berlin, Heidelberg
Zampieri E, Murat C, Cagnasso M, Bonfante P, Mello A (2009) Soil analysis reveals the presence of an extended mycelial network in a Tuber magnatum truffle-ground. FEMS Microbiol Ecol 71:43–49
Zhang LF, Yang ZL, Song DS (2005) A phylogenetic study of commercial Chinese truffles and their allies: taxonomic implications. FEMS Microbiol Lett 245:85–92
Acknowledgments
We thank Mr. Masaru Ohkubo, Mr. Taisuke Kamiya and Mr. Yusuke Aikawa for helping and collecting. We also thank Dr. Mitsuteru Akiba and Dr. Asako Matsumoto of FFPRI for their helpful advices on the SSR analysis.
Funding
This work was financially supported by a grant from the Ministry of Agriculture, Forestry and Fisheries of Japan entitled “Technology development for the optimal use of forest resources.”
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This study was conceptualized by JPA and TY. Field study was performed by JPA and HS. Ascocarp samples were collected by AK from various locations in Japan. Molecular markers were developed and tested by KO, JRPW, YO, and NN. Molecular and spatial analyses were performed by NN. The first draft of the manuscript was written by NN and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Supplementary Figure 1
Spatial distribution of fruiting positions in the plots of Quercus dentata (a) and Castanea crenata (b). Colors and symbols correspond to sampling years. Filled circles represent trees. (PDF 74 kb)
Supplementary Figure 2
Frequency of distances between ascocarps and its nearest trees in the plots of Quercus dentata (a) and Castanea crenata (b). (PDF 27 kb)
Supplementary Figure 3
L(r) values of the spatial distribution of the fruiting positions in 2004 (a), 2005 (b), 2006 (c), 2007 (d), 2008 (e), 2009 (f) and 2011 (g) in the plot of Quercus dentata and 2007 (h), 2008 (i), 2009 (j) and 2011 (k) in the plot of Castanea crenata. The 99% confidence simulation envelopes are shown as gray, shaded regions. L(r) values outside of the confidence envelopes indicate significant deviation from random distribution, with higher values indicating aggregation and lower values dispersion. (PDF 180 kb)
Supplementary Figure 4
Spatial distribution of fruiting positions and fruiting clusters in the plots of Quercus dentata (a) and Castanea crenata (b). Colors correspond to sampling years. Localities of fruiting clusters are shown in triangles. Filled circles represent trees. (PDF 91 kb)
Supplementary Figure 5
Spatial distribution of the ascocarps in the plots of Quercus dentata (a) and Castanea crenata (b), which were used for molecular analyses. Gray symbols represent samples where simple sequence repeat-multilocus genotypes (SSR-MLG) failed to be determined for at least one of all 19 loci. The remaining samples in both plots represent the identical SSR-MLG. Filled circles represent trees. (PDF 32 kb)
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Nakamura, N., Abe, J.P., Shibata, H. et al. Genotypic diversity of the Asiatic black truffle, Tuber himalayense, collected in spontaneous and highly productive truffle grounds. Mycol Progress 19, 1511–1523 (2020). https://doi.org/10.1007/s11557-020-01642-z
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DOI: https://doi.org/10.1007/s11557-020-01642-z