Phylogeny and phylogeography of the Tuber brumale aggr.

Merényi, Zsolt; Varga, Torda; Orczán, Ákos Kund; Chevalier, G.; Bratek, Zoltán

doi:10.1007/s00572-014-0566-7

Cited by 21 publications

(15 citation statements)

References 68 publications

(12 reference statements)

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“…Eighty-eight samples from these countries and a few samples from south Italy have been genotyped for eight SSR loci and these data merged with the SSR profiles retrieved from Rubini et al [4]. By doing so, the number of alleles detected among the 429 specimens increased up to 77, with 12 new alleles being found, and with the number of alleles per locus (from 3 up to 19) in the same range found for other truffle species, such as T. melanosporum (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18) and T aestivum (4-15) [39,40].…”

Section: New Insights Into Genetic Diversity Of White Trufflementioning

confidence: 91%

“…The evaluation of the intraspecific genetic diversity and population genetic structure of a species is crucial to understand its biology and ascertain its origin, history and evolution. By using molecular markers and performing a wide geographical sampling, a fine assessment of the population genetic structure of T. melanosporum, T. brumale, T. indicum, T. aestivum and T. magnatum has been performed [3][4][5][6][7][8][9]. These studies highlighted the presence of geographically structured populations and phylogeographic patterns in these species.…”

Section: Introductionmentioning

confidence: 99%

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Genetic Structure and Phylogeography of Tuber magnatum Populations

et al. 2020

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The ectomycorrhizal fungus Tuber magnatum produces the white truffle appreciated worldwide for its unique aroma. With respect to other Tuber spp. of economic interest, T. magnatum presents a narrower geographical range. This species has, in fact, long been considered endemic to Italy. However, over the last few decades several reports have documented the presence of white truffles in different Mediterranean countries and in particular in various areas of south-east Europe. In this study, samples from several Pannonian and Balkan countries such as Hungary, Serbia, Romania, Bulgaria and Greece have been collected and genotyped with microsatellite markers and the data merged with those available for Italian populations. Our objectives were to test whether Italian and south-east European populations are differentiated and to evaluate the genetic diversity of T. magnatum all over its distributional range. We show the genetic structure of T. magnatum populations with the differentiation of four main groups: northern Italy, central-northern Italy, southern Italy and the Balkan/Pannonian region. The present study allowed us to refine the evolutionary history of T. magnatum and track the possible post-glacial expansion route of this species. The assessment of T. magnatum’s genetic structure is not only of scientific relevance, but it is also important for the conservation and market traceability of this prestigious fungus.

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Section: New Insights Into Genetic Diversity Of White Trufflementioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Genetic Structure and Phylogeography of Tuber magnatum Populations

et al. 2020

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“…Among Tuber spp. these analyses have mainly been carried out in T. melanosporum, T. magnatum and T. brumale (Murat et al 2004(Murat et al , 2011(Murat et al , 2013Rubini et al 2004;Riccioni et al 2008;Merényi et al 2014;García-Cunchillos et al 2014). For example, a strong genetic structure with significant fixation indices was observed among T. melanosporum populations at a European scale (F st =0.20 and F st =0.177; Murat et al 2004;Riccioni et al 2008).…”

Section: Introductionmentioning

confidence: 97%

“…ectomycorrhizal species such as Laccaria amethystina (Hortal et al 2012), Rhizopogon roseolus (Okuda et al 2013), Tuber brumale (Merényi et al 2014), Tuber magnatum (Rubini et al 2005) and Tuber melanosporum (Murat et al 2004;Riccioni et al 2008;García-Cunchillos et al 2014). On the other hand, the absence of any genetic differentiation among populations was shown in Pisolithus microcarpus (Hitchcock et al 2011) and Suillus spraguei (Rivera et al 2014).…”

Section: Introductionmentioning

confidence: 99%

SSR-based identification of genetic groups within European populations of Tuber aestivum Vittad

et al. 2015

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Tuber species are ectomycorrhizal ascomycetes establishing relationships with different host trees and forming hypogeous fruiting bodies known as truffles. Among Tuber species, Tuber aestivum Vittad. has a wide distributional range being found naturally all over Europe. Here, we performed large-scale population genetic analyses in T. aestivum to (i) investigate its genetic diversity at the European scale, (ii) characterize its genetic structure and test for the presence of ecotypes and (iii) shed light into its demographic history. To reach these goals, 230 ascocarps from different populations were genotyped using 15 polymorphic simple sequence repeat markers. We identified 181 multilocus genotypes and four genetic groups which did not show a clear geographical separation; although, one of them was present exclusively in Southeast France, Italy and Spain. Fixation index values between pairs of genetic groups were generally high and ranged from 0.29 to 0.45. A significant deficit of heterozygosity indicated a population expansion instead of a recent population bottleneck, suggesting that T. aestivum is not endangered in Europe, not even in Mediterranean regions. Our study based on a large-scale population genetic analysis suggests that genetically distinct populations and likely ecotypes within T. aestivum are present. In turn, this study paves the way to future investigations aimed at addressing the biological and/or ecological factors that have concurred in shaping the population genetic structure of this species. Present results should also have implications for the truffle market since defining genetic markers are now possible at least for some specific T. aestivum genetic groups.

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“…In a phylogenetic analysis on specimens of Tuber brumale Vittad. collected across its range in 19 countries, Merényi et al (2014) find that this species clusters into two large clades of morphologically cryptic species lineages. Prior glaciation and migration events likely contributed to this genetic structure.…”

Section: Purpose and Content Of This Special Issuementioning

confidence: 94%

Tuber 2013: scientific advances in sustainable truffle culture

2014

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Since the 3rd International Truffle Conference in Spoleto (2008), researchers have made considerable progress in advancing understanding of the biology and ecology of Tuber species and in improving the sustainable productivity of these valuable fungi. Publication of the black truffle, Tuber melanosporum Vittad., genome (Martin et al. 2010) has opened new possibilities to explore gene functions and population dynamics of black truffles. New molecular technologies provide valuable tools to monitor black truffle development (Parladé et al. 2013) and allow researchers and managers to monitor the success of new truffle plantations and the effects of cultivation treatments on truffle productivity.Given the significant impact of truffle plantations on local economies, the regional government of Aragón, together with other institutes and truffle grower groups (see "Acknowledgments"), organized the 1st International Congress of Trufficulture in Teruel on March 5-8, 2013. The province of Teruel (Aragón region, Spain) produces almost 20 % of the global truffle market and hosts 11 % of the world's black truffle plantations. The main objective of the congress was to promote the sustainable productivity of truffles by highlighting and exchanging the latest scientific advances in truffle biology, ecology, and truffle plantation management among researchers, students, truffle hunters, truffle growers, forest managers, land-use planners, and rural entrepreneurs from around the world. The conference brought together 270 participants from 23 countries of Europe, North and South America, Australia, and New Zealand.More than 100 presentations, of which, 54 oral and the remaining posters, covered many aspects of truffle biology, genetics, taxonomy, ecology, cultivation, and commercialization. The congress also included market displays by regional truffle entrepreneurs and a local field trip to productive truffle plantations, seedling nurseries, and a truffle processing facility. Congress attendees thus experienced firsthand the many aspects of the region's practicing truffle culture. The trip culminated with a delightful banquet where all enjoyed the essence of truffle cuisine. Purpose and content of this special issueCongress organizers felt it was important to share the science findings with the international community and partnered with Springer to publish this special issue of Mycorrhiza. The published papers are not formal proceedings, but instead focus on presentations selected by the guest editors to highlight significant scientific findings that advance sustainable truffle culture. All abstracts and links to presentation videos are available at: www.tuber2013.com.The first two papers review important findings on the diversity of ectomycorrhizal (ECM) fungi associated with truffle fungi and the reproductive biology of T. melanosporum. Truffle researchers and managers have long known that colonization of outplanted, truffle-inoculated seedlings by unwanted, competing ECM fungi impedes colonization by the targeted truffle speci...

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Phylogeny and phylogeography of the Tuber brumale aggr.

Cited by 21 publications

References 68 publications

Genetic Structure and Phylogeography of Tuber magnatum Populations

Genetic Structure and Phylogeography of Tuber magnatum Populations

SSR-based identification of genetic groups within European populations of Tuber aestivum Vittad

Tuber 2013: scientific advances in sustainable truffle culture

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