Convergent evolution of sequestrate forms in Amanita under Mediterranean climate conditions

Alfredo Justo; Ingo Morgenstern; Heather E. Hallen-Adams; David S. Hibbett

doi:10.3852/09-191

Convergent evolution of sequestrate forms in Amanita under Mediterranean climate conditions

Alfredo Justo, Ingo Morgenstern, Heather E. Hallen-Adams, David S. Hibbett

Research output: Contribution to journal › Article › peer-review

52 Scopus citations

Abstract

The systematic position of secotioid (Torrendia) and gasteroid (Amarrendia) forms within the agaricoid Amanita lineage (Agaricales, Basidiomycota) was studied with molecular (nLSU, ITS) data. Secotioid and gasteroid forms occur in four independent clades nested within agaricoid forms. One clade corresponds to the secotioid T. pulchella from southern Europe and northern Africa. The others correspond to Torrendia and Amarrendia species from Australia. Mediterranean climatic conditions are postulated as a force driving the convergent evolution of these secotioid and at least one of the gasteroid forms in geographically distant areas. Species formerly placed in Torrendia and Amarrendia are transferred to Amanita. A new species of Torrendia from Australia was discovered during the revision of the collections originally identified as T. arenaria and is described here as Amanita pseudoinculta.

Original language	English (US)
Pages (from-to)	675-688
Number of pages	14
Journal	Mycologia
Volume	102
Issue number	3
DOIs	https://doi.org/10.3852/09-191
State	Published - May 2010
Externally published	Yes

Keywords

Amarrendia
ITS
Phylogeny
Sequestrate forms
Torrendia
nLSU

ASJC Scopus subject areas

Ecology, Evolution, Behavior and Systematics
Physiology
Molecular Biology
Genetics
Cell Biology

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title = "Convergent evolution of sequestrate forms in Amanita under Mediterranean climate conditions",

abstract = "The systematic position of secotioid (Torrendia) and gasteroid (Amarrendia) forms within the agaricoid Amanita lineage (Agaricales, Basidiomycota) was studied with molecular (nLSU, ITS) data. Secotioid and gasteroid forms occur in four independent clades nested within agaricoid forms. One clade corresponds to the secotioid T. pulchella from southern Europe and northern Africa. The others correspond to Torrendia and Amarrendia species from Australia. Mediterranean climatic conditions are postulated as a force driving the convergent evolution of these secotioid and at least one of the gasteroid forms in geographically distant areas. Species formerly placed in Torrendia and Amarrendia are transferred to Amanita. A new species of Torrendia from Australia was discovered during the revision of the collections originally identified as T. arenaria and is described here as Amanita pseudoinculta.",

keywords = "Amarrendia, ITS, Phylogeny, Sequestrate forms, Torrendia, nLSU",

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AU - Morgenstern, Ingo

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AU - Hibbett, David S.

PY - 2010/5

Y1 - 2010/5

N2 - The systematic position of secotioid (Torrendia) and gasteroid (Amarrendia) forms within the agaricoid Amanita lineage (Agaricales, Basidiomycota) was studied with molecular (nLSU, ITS) data. Secotioid and gasteroid forms occur in four independent clades nested within agaricoid forms. One clade corresponds to the secotioid T. pulchella from southern Europe and northern Africa. The others correspond to Torrendia and Amarrendia species from Australia. Mediterranean climatic conditions are postulated as a force driving the convergent evolution of these secotioid and at least one of the gasteroid forms in geographically distant areas. Species formerly placed in Torrendia and Amarrendia are transferred to Amanita. A new species of Torrendia from Australia was discovered during the revision of the collections originally identified as T. arenaria and is described here as Amanita pseudoinculta.

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KW - ITS

KW - Phylogeny

KW - Sequestrate forms

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KW - nLSU

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Convergent evolution of sequestrate forms in Amanita under Mediterranean climate conditions

Abstract

Keywords

ASJC Scopus subject areas

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