Phylogeny of the GenusAgaricusInferred from Restriction Analysis of Enzymatically Amplified Ribosomal DNA

Bunyard, Britt A.; Nicholson, Michael S.; Royse, Daniel J.

doi:10.1006/fgbi.1996.0039

Cited by 27 publications

(11 citation statements)

References 65 publications

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“…see Kerrigan et al 1999, Calvo-Bado et al 2000, Geml et al 2004, Callac and Guinberteau 2005, Kerrigan 2005. Efforts have been made to reconstruct the evolutionary history of the genus from molecular data (Bunyard et al 1996, Mitchell and Bresinsky 1999, Robison et al 2001, Challen et al 2003, Geml 2004, Geml et al 2004 and to detect and describe new species with combined molecular phylogenetics and morphological investigation Guinberteau 2005, Kerrigan 2005). However, all studies included predominantly collections from temperate climates and the evolutionary history of Agaricus taxa in the northern high latitudes (i.e.…”

Section: Introductionmentioning

confidence: 99%

Molecular diversity assessment of arctic and borealAgaricustaxa

Geml¹,

Laursen²,

Taylor

2008

Mycologia

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We provide a phylogenetic diversity assessment study in genus Agaricus as part of our ongoing work to saturate ITS and LSU rDNA sequence diversity of soil-dwelling fungi in Alaska. Pairwise sequence similarity-based groupings and statistical parsimony analyses were applied to delimit operational taxonomic unit (OTU) and were compared to results of full phylogenetic analyses. Our results show that the proportion of section Arvenses taxa is particularly high in the boreal forest and hypo-arctic (low arctic) regions, whereas the genus is represented by section Agaricus in high arctic habitats. Furthermore our findings suggest that the commercially important A. bisporus occurs naturally in the boreal region of interior Alaska, substantially expanding the known northern limit of the species. Delimitations of OTU varied greatly with different methods. In general 95% similarity-based grouping proved to be the least sensitive method, often resulting in section- and subsection-level groups. The 95% connection-limit statistical parsimony separated far more groups. The 98% similarity-based groups and the 98% connection limit networks recognized respectively 11 and 13 OTU containing our specimens. The 98% connection limit statistical parsimony was the only method in which all recognized OTU consisted of members grouped by branches with significant (> .95) posterior probabilities, providing an independent support for the groups. Our results also point out that considerable additional efforts will be needed to elucidate the evolution of this diverse genus and to assess its phylogenetic diversity, given that most taxa in our analyses could not be placed convincingly within well characterized species using ITS/LSU data.

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Section: Introductionmentioning

confidence: 99%

Molecular diversity assessment of arctic and borealAgaricustaxa

Geml¹,

Laursen²,

Taylor

2008

Mycologia

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“…Use of ribosomal DNA (rDNA) sequences to infer phylogenetic relationships among agaric fungi now is widely exploited (for example, see BRUNS, WHITE & TAYLOR 1991, BUNYARD, NICHOLSON & ROYSE 1996, HIBBETT et al 1995, HIBBETT, GRIMALDI & DONOGHUE 1997b, HOPPLE & VILGA-LYS 1999, HILLIS & DIXON 1991, JOHNSON & VILGALYS 1999, LUTZONI & VILGALYS 1995, MONCALVO, WANG & HSEU 1995, MONCALVO, DREHMEL & VILGALYS 2000a, MONCALVO et al 2000b, NICHOLSON 1995, PINE, HIBBETT & DONOGHUE 1999, THON & ROYSE 1999. Use of ribosomal DNA (rDNA) sequences to infer phylogenetic relationships among agaric fungi now is widely exploited (for example, see BRUNS, WHITE & TAYLOR 1991, BUNYARD, NICHOLSON & ROYSE 1996, HIBBETT et al 1995, HIBBETT, GRIMALDI & DONOGHUE 1997b, HOPPLE & VILGA-LYS 1999, HILLIS & DIXON 1991, JOHNSON & VILGALYS 1999, LUTZONI & VILGALYS 1995, MONCALVO, WANG & HSEU 1995, MONCALVO, DREHMEL & VILGALYS 2000a, MONCALVO et al 2000b, NICHOLSON 1995, PINE, HIBBETT & DONOGHUE 1999, THON & ROYSE 1999.…”

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confidence: 99%

Molecular evolution of Agaricus species based on ITS and LSU rDNA sequences

2004

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“…Three of the species examined (A. subperonatus, A. benesi, and A. campestris) were host to the same sequence type. The potential phylogenetic relationships between the plasmid sequences that were revealed by parsimony analysis did not show any similarity to expected Agaricus species relationships based on morphological or biochemical characters (Kerrigan, 1986), RFLP patterns of amplified ribosomal DNA (Bunyard et al, 1996), or mitochondrial gene ATPase6 sequence data obtained using the same isolates of the same species ( Fig. 5 and unpublished results).…”

Section: Discussionmentioning

confidence: 94%