Data from: Multi-locus phylogeny of lethal amanitas: implications for species diversity and historical biogeography

Background: Lethal amanitas (Amanita section Phalloideae) are a group of wild, fatal mushrooms causing many poisoning cases worldwide. However, the diversity and evolutionary history of these lethal mushrooms remain poorly known due to the limited sampling and insufficient gene fragments employed fo...

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Main Authors: Cai, Qing, Tulloss, Rodham E., Tang, Li P., Tolgor, Bau, Zhang, Ping, Chen, Zuo H., Yang, Zhu L.
Format: Article in Journal/Newspaper
Language:unknown
Published: 2014
Subjects:
Online Access:http://hdl.handle.net/10255/dryad.64834
https://doi.org/10.5061/dryad.8db34
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spelling ftdryad:oai:v1.datadryad.org:10255/dryad.64834 2023-05-15T15:42:42+02:00 Data from: Multi-locus phylogeny of lethal amanitas: implications for species diversity and historical biogeography Cai, Qing Tulloss, Rodham E. Tang, Li P. Tolgor, Bau Zhang, Ping Chen, Zuo H. Yang, Zhu L. 2014-06-23T15:01:28Z http://hdl.handle.net/10255/dryad.64834 https://doi.org/10.5061/dryad.8db34 unknown doi:10.5061/dryad.8db34/1 doi:10.1186/1471-2148-14-143 PMID:24950598 doi:10.5061/dryad.8db34 Cai Q, Tulloss RE, Tang LP, Tolgor B, Zhang P, Chen ZH, Yang ZL (2014) Multi-locus phylogeny of lethal amanitas: implications for species diversity and historical biogeography. BMC Evolutionary Biology 14:143. http://hdl.handle.net/10255/dryad.64834 Biogeography Lethal substances Phylogenetic species Molecular clock Synapomorphy Article 2014 ftdryad https://doi.org/10.5061/dryad.8db34 https://doi.org/10.5061/dryad.8db34/1 https://doi.org/10.1186/1471-2148-14-143 2020-01-01T15:08:51Z Background: Lethal amanitas (Amanita section Phalloideae) are a group of wild, fatal mushrooms causing many poisoning cases worldwide. However, the diversity and evolutionary history of these lethal mushrooms remain poorly known due to the limited sampling and insufficient gene fragments employed for phylogenetic analyses. In this study, five gene loci (nrLSU, ITS, rpb2, ef1-α and β-tubulin) with a widely geographic sampling from East and South Asia, Europe, North and Central America, South Africa and Australia were analysed with maximum-likelihood, maximum-parsimony and Bayesian inference methods. Biochemical analyses were also conducted with intention to detect amatoxins and phalloidin in 14 representative samples. Result: Lethal amanitas were robustly supported to be a monophyletic group after excluding five species that were provisionally defined as lethal amanitas based on morphological studies. In lethal amanitas, 28 phylogenetic species were recognised by integrating molecular phylogenetic analyses with morphological studies, and 14 of them represented putatively new species. The biochemical analyses indicated a single origin of cyclic peptide toxins (amatoxins and phalloidin) within Amanita and suggested that this kind of toxins seemed to be a synapomorphy of lethal amanitas. Molecular dating through BEAST and biogeographic analyses with LAGRANGE and RASP indicated that lethal amanitas most likely originated in the Palaeotropics with the present crown group dated around 64.92 Mya in the early Paleocene, and the East Asia–eastern North America or Eurasia–North America–Central America disjunct distribution patterns were primarily established during the middle Oligocene to Miocene. Conclusion: The cryptic diversity found in this study indicates that the species diversity of lethal amanitas is strongly underestimated under the current taxonomy. The intercontinental sister species or sister groups relationships among East Asia and eastern North America or Eurasia–North America–Central America within lethal amanitas are best explained by the diversification model of Palaeotropical origin, dispersal via the Bering Land Bridge, followed by regional vicariance speciation resulting from climate change during the middle Oligocene to the present. These findings indicate the importance of both dispersal and vicariance in shaping the intercontinental distributions of these ectomycorrhizal fungi. Article in Journal/Newspaper Bering Land Bridge Dryad Digital Repository (Duke University) Lagrange ENVELOPE(-62.597,-62.597,-64.529,-64.529)
institution Open Polar
collection Dryad Digital Repository (Duke University)
op_collection_id ftdryad
language unknown
topic Biogeography
Lethal substances
Phylogenetic species
Molecular clock
Synapomorphy
spellingShingle Biogeography
Lethal substances
Phylogenetic species
Molecular clock
Synapomorphy
Cai, Qing
Tulloss, Rodham E.
Tang, Li P.
Tolgor, Bau
Zhang, Ping
Chen, Zuo H.
Yang, Zhu L.
Data from: Multi-locus phylogeny of lethal amanitas: implications for species diversity and historical biogeography
topic_facet Biogeography
Lethal substances
Phylogenetic species
Molecular clock
Synapomorphy
description Background: Lethal amanitas (Amanita section Phalloideae) are a group of wild, fatal mushrooms causing many poisoning cases worldwide. However, the diversity and evolutionary history of these lethal mushrooms remain poorly known due to the limited sampling and insufficient gene fragments employed for phylogenetic analyses. In this study, five gene loci (nrLSU, ITS, rpb2, ef1-α and β-tubulin) with a widely geographic sampling from East and South Asia, Europe, North and Central America, South Africa and Australia were analysed with maximum-likelihood, maximum-parsimony and Bayesian inference methods. Biochemical analyses were also conducted with intention to detect amatoxins and phalloidin in 14 representative samples. Result: Lethal amanitas were robustly supported to be a monophyletic group after excluding five species that were provisionally defined as lethal amanitas based on morphological studies. In lethal amanitas, 28 phylogenetic species were recognised by integrating molecular phylogenetic analyses with morphological studies, and 14 of them represented putatively new species. The biochemical analyses indicated a single origin of cyclic peptide toxins (amatoxins and phalloidin) within Amanita and suggested that this kind of toxins seemed to be a synapomorphy of lethal amanitas. Molecular dating through BEAST and biogeographic analyses with LAGRANGE and RASP indicated that lethal amanitas most likely originated in the Palaeotropics with the present crown group dated around 64.92 Mya in the early Paleocene, and the East Asia–eastern North America or Eurasia–North America–Central America disjunct distribution patterns were primarily established during the middle Oligocene to Miocene. Conclusion: The cryptic diversity found in this study indicates that the species diversity of lethal amanitas is strongly underestimated under the current taxonomy. The intercontinental sister species or sister groups relationships among East Asia and eastern North America or Eurasia–North America–Central America within lethal amanitas are best explained by the diversification model of Palaeotropical origin, dispersal via the Bering Land Bridge, followed by regional vicariance speciation resulting from climate change during the middle Oligocene to the present. These findings indicate the importance of both dispersal and vicariance in shaping the intercontinental distributions of these ectomycorrhizal fungi.
format Article in Journal/Newspaper
author Cai, Qing
Tulloss, Rodham E.
Tang, Li P.
Tolgor, Bau
Zhang, Ping
Chen, Zuo H.
Yang, Zhu L.
author_facet Cai, Qing
Tulloss, Rodham E.
Tang, Li P.
Tolgor, Bau
Zhang, Ping
Chen, Zuo H.
Yang, Zhu L.
author_sort Cai, Qing
title Data from: Multi-locus phylogeny of lethal amanitas: implications for species diversity and historical biogeography
title_short Data from: Multi-locus phylogeny of lethal amanitas: implications for species diversity and historical biogeography
title_full Data from: Multi-locus phylogeny of lethal amanitas: implications for species diversity and historical biogeography
title_fullStr Data from: Multi-locus phylogeny of lethal amanitas: implications for species diversity and historical biogeography
title_full_unstemmed Data from: Multi-locus phylogeny of lethal amanitas: implications for species diversity and historical biogeography
title_sort data from: multi-locus phylogeny of lethal amanitas: implications for species diversity and historical biogeography
publishDate 2014
url http://hdl.handle.net/10255/dryad.64834
https://doi.org/10.5061/dryad.8db34
long_lat ENVELOPE(-62.597,-62.597,-64.529,-64.529)
geographic Lagrange
geographic_facet Lagrange
genre Bering Land Bridge
genre_facet Bering Land Bridge
op_relation doi:10.5061/dryad.8db34/1
doi:10.1186/1471-2148-14-143
PMID:24950598
doi:10.5061/dryad.8db34
Cai Q, Tulloss RE, Tang LP, Tolgor B, Zhang P, Chen ZH, Yang ZL (2014) Multi-locus phylogeny of lethal amanitas: implications for species diversity and historical biogeography. BMC Evolutionary Biology 14:143.
http://hdl.handle.net/10255/dryad.64834
op_doi https://doi.org/10.5061/dryad.8db34
https://doi.org/10.5061/dryad.8db34/1
https://doi.org/10.1186/1471-2148-14-143
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