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Citation for Study 13537

Citation title: "Historical biogeography and diversification of truffles in the Tuberaceae and their newly identified Southern hemisphere sister lineage".

Study name: "Historical biogeography and diversification of truffles in the Tuberaceae and their newly identified Southern hemisphere sister lineage".

This study is part of submission 13537 (Status: Published).

Citation

Bonito G.M. 2012. Historical biogeography and diversification of truffles in the Tuberaceae and their newly identified Southern hemisphere sister lineage. PLOSone, .

Authors

• Bonito G.M. (submitter) 5178845948

Abstract

Truffles have evolved from epigeous (aboveground) ancestors in nearly every major lineage of fleshy fungi. Because accelerated rates of morphological evolution accompany the transition to the truffle form, closely related epigeous ancestors remain unknown for most truffle lineages. This is the case for the quintessential truffle genus Tuber, which includes species with socio-economic importance and esteemed culinary attributes. Ecologically, Tuber spp. form obligate mycorrhizal symbioses with a diverse species of plant hosts including pines, oaks, poplars, orchids, and commercially important trees such as hazelnut and pecan. Unfortunately, limited geographic sampling and inconclusive phylogenetic relationships have obscured our understanding of their origin, biogeography, and diversification. To address this problem, we present a global sampling of Tuberaceae based on DNA sequence data from four loci for phylogenetic inference and molecular dating. Our well-resolved Tuberaceae phylogeny shows high levels of regional and continental endemism. We also identify a previously unknown epigeous member of the Tuberaceae ? the South American cup-fungus Nothojafnea thaxteri (Cash) Gamund?. Phylogenetic resolution was further improved through the inclusion of a previously unrecognized Southern hemisphere sister group of the Tuberaceae. This morphologically diverse assemblage of fungi includes truffle forms endemic to Australia and South America (e.g. Gymnohydnotrya spp.) and non-truffle species. The Southern hemisphere taxa appear to have diverged more recently than the Northern hemisphere lineages. Our analysis of the Tuberaceae suggests that Tuber evolved from an epigeous ancestor. Molecular dating estimates that the Tuberaceae diverged in the late Jurassic (~156 million years ago), with subsequent radiations in the Cretaceous and Paleogene. Intra-continental diversification, limited long-distance dispersal, and ecological adaptations have driven truffle evolution and Tuberaceae biodiversity.

Keywords

fungal evolution, phylogenetics, divergence time estimation, Tuber, ectomycorrhizal lineages, hypogeous fungi, biogeography

External links

About this resource

• Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S13537
• Other versions: Nexus NeXML
• Show BibTeX reference

  		@ARTICLE{TreeBASE2Ref21462,
  	 author = {Gregory Michael Bonito},
  	 title = {Historical biogeography and diversification of truffles in the Tuberaceae and their newly identified Southern hemisphere sister lineage},
  	 year = {2012},
  	 keywords = {fungal evolution, phylogenetics, divergence time estimation, Tuber, ectomycorrhizal lineages, hypogeous fungi, biogeography},
  	 doi = {},
  	 url = {http://},
  	 pmid = {},
  	 journal = {PLOSone},
  	 volume = {},
  	 number = {},
  	 pages = {},
  	 abstract = {Truffles have evolved from epigeous (aboveground) ancestors in nearly every major lineage of fleshy fungi. Because accelerated rates of morphological evolution accompany the transition to the truffle form, closely related epigeous ancestors remain unknown for most truffle lineages. This is the case for the quintessential truffle genus Tuber, which includes species with socio-economic importance and esteemed culinary attributes. Ecologically, Tuber spp. form obligate mycorrhizal symbioses with a diverse species of plant hosts including pines, oaks, poplars, orchids, and commercially important trees such as hazelnut and pecan. Unfortunately, limited geographic sampling and inconclusive phylogenetic relationships have obscured our understanding of their origin, biogeography, and diversification. To address this problem, we present a global sampling of Tuberaceae based on DNA sequence data from four loci for phylogenetic inference and molecular dating. Our well-resolved Tuberaceae phylogeny shows high levels of regional and continental endemism. We also identify a previously unknown epigeous member of the Tuberaceae ? the South American cup-fungus Nothojafnea thaxteri (Cash) Gamund?. Phylogenetic resolution was further improved through the inclusion of a previously unrecognized Southern hemisphere sister group of the Tuberaceae. This morphologically diverse assemblage of fungi includes truffle forms endemic to Australia and South America (e.g. Gymnohydnotrya spp.) and non-truffle species. The Southern hemisphere taxa appear to have diverged more recently than the Northern hemisphere lineages. Our analysis of the Tuberaceae suggests that Tuber evolved from an epigeous ancestor. Molecular dating estimates that the Tuberaceae diverged in the late Jurassic (~156 million years ago), with subsequent radiations in the Cretaceous and Paleogene. Intra-continental diversification, limited long-distance dispersal, and ecological adaptations have driven truffle evolution and Tuberaceae biodiversity.}
  }
  		

• Show RIS reference

  		TY  - JOUR
  ID  - 21462
  AU  - Bonito,Gregory Michael
  T1  - Historical biogeography and diversification of truffles in the Tuberaceae and their newly identified Southern hemisphere sister lineage
  PY  - 2012
  KW  - fungal evolution
  KW  - phylogenetics
  KW  - divergence time estimation
  KW  - Tuber
  KW  - ectomycorrhizal lineages
  KW  - hypogeous fungi
  KW  - biogeography
  UR  - http://dx.doi.org/
  N2  - Truffles have evolved from epigeous (aboveground) ancestors in nearly every major lineage of fleshy fungi. Because accelerated rates of morphological evolution accompany the transition to the truffle form, closely related epigeous ancestors remain unknown for most truffle lineages. This is the case for the quintessential truffle genus Tuber, which includes species with socio-economic importance and esteemed culinary attributes. Ecologically, Tuber spp. form obligate mycorrhizal symbioses with a diverse species of plant hosts including pines, oaks, poplars, orchids, and commercially important trees such as hazelnut and pecan. Unfortunately, limited geographic sampling and inconclusive phylogenetic relationships have obscured our understanding of their origin, biogeography, and diversification. To address this problem, we present a global sampling of Tuberaceae based on DNA sequence data from four loci for phylogenetic inference and molecular dating. Our well-resolved Tuberaceae phylogeny shows high levels of regional and continental endemism. We also identify a previously unknown epigeous member of the Tuberaceae ? the South American cup-fungus Nothojafnea thaxteri (Cash) Gamund?. Phylogenetic resolution was further improved through the inclusion of a previously unrecognized Southern hemisphere sister group of the Tuberaceae. This morphologically diverse assemblage of fungi includes truffle forms endemic to Australia and South America (e.g. Gymnohydnotrya spp.) and non-truffle species. The Southern hemisphere taxa appear to have diverged more recently than the Northern hemisphere lineages. Our analysis of the Tuberaceae suggests that Tuber evolved from an epigeous ancestor. Molecular dating estimates that the Tuberaceae diverged in the late Jurassic (~156 million years ago), with subsequent radiations in the Cretaceous and Paleogene. Intra-continental diversification, limited long-distance dispersal, and ecological adaptations have driven truffle evolution and Tuberaceae biodiversity.
  L3  - 
  JF  - PLOSone
  VL  - 
  IS  - 
  ER  -