Identification and characterization of Armillaria tabescens from the southeastern United States

Schnabel, Guido; Ash, Joshua S.; Bryson, Patricia K.

doi:10.1017/s0953756205003916

Cited by 36 publications

(34 citation statements)

References 29 publications

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“…It is pathogenic on hardwoods, particularly on oaks and fruit trees, in eastern North America (Schnabel et al 2005). Maximum likelihood and maximum parsimony analyses of the dataset showed similar results (data not shown).…”

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confidence: 70%

Advances toward DNA-based identification and phylogeny of North American Armillaria species using elongation factor-1 alpha gene

et al. 2012

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The translation elongation factor-1 alpha (EF-1a) gene was used to examine the phylogenetic relationships among 30 previously characterized isolates representing ten North American Armillaria species:American biological species X, A. cepistipes, and A. tabescens. The phylogenetic relationships revealed clear separation of all ten North American Armillaria species, with the exception of one A. gallica isolate that perhaps represents an unnamed cryptic species. These results indicate that the EF-1a gene could potentially serve as a diagnostic tool for distinguishing among currently recognized North American biological species of Armillaria.

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confidence: 70%

Advances toward DNA-based identification and phylogeny of North American Armillaria species using elongation factor-1 alpha gene

et al. 2012

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“…However, a few A. solidipes isolates gave a new pattern with AluI. This, in diploid isolates of A. solidipes, seems to result from heterozygosity and the existence of variable multicopies in the rDNA array (Pérez-Sierra et al 1999;Kim et al 2000;Dunne et al 2002;Smith-White et al 2002;Lochman et al 2004a,b;Schnabel et al 2005;Keča et al 2006). Hybrid RFLP patterns of the IGS-1 rDNA region have also been discovered in other Armillaria species (Kim et al 2006;Antonin et al 2009).…”

Section: Discussionmentioning

confidence: 95%

“…the internal transcribed spacer (ITS) and intergenic spacer (IGS) (Anderson and Stasovski 1992;Harrington and Wingfield 1995;Banik et al 1996;Terashima et al 1998a,b;Pérez-Sierra et al 1999;Fukuda et al 2003;Lochman et al 2004a;Matsushita and Suzuki 2005;Schnabel et al 2005;Keča et al 2006;Sekizaki et al 2008). More recently the translation elongation factor-1 alpha (EF-1 alpha) gene, which encodes an essential part of the protein translation machinery, was shown to have high phylogenetic utility and has been used in studies on fungi.…”

Section: Introductionmentioning

confidence: 99%

Populations of Armillaria species in pine plantations in west-central Poland

2015

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Two diploid isolates of Armillaria gallica and 143 diploid isolates of A. solidipes were obtained from 145 samples of rhizomorphs, fruit bodies and infected wood of sessile oak and Scots pines from 5-10-year-old Scots pine plantations in three Forest Districts located 100-350 km apart in west-central Poland. Based on pairings among the 145 isolates, 18 somatic compatibility groups (genets) of A. solidipes were distinguished in the three plantations. Sequencing of ITS1/2 rDNA of 18 isolates representing the 18 genets delineated four nuclear haplotypes. This suggests that many of the A. solidipes genets are closely related and were possibly established by sib-related basidiospores. With a few exceptions there was general geographical specialization of genets but not haplotypes. Geographical specialization of genets and the dominance of single haplotypes suggest that the A. solidipes population results from clonal rather than sexual reproduction. Sequencing of the ITS1/2 and IGS-1 rDNA showed small nucleotide diversity in ITS1/2 rDNA and much more diversity in IGS-1 rDNA of the isolates of A. solidipes studied. However, none of these regions has sufficient resolution for the clear differentiation of A. solidipes from A. borealis. The sequences of the EF 1-alpha gene showed high interspecific variability in Armillaria species and very low intraspecific variability in A. solidipes. This gene is the most appropriate for reliable identification of biological species and subgroups of Armillaria. Its application is the most useful in ecological and epidemiological studies of Armillaria.

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“…Two IGS1 'types' were recovered in Laccaria amethystina that differed by the presence of a single 47-base pair indel (Fiore-Donno & Martin 2001), but a more recent analysis found greater variation e nine different sequence fragments referred to as 'alleles' (Roy et al 2008). Schnabel et al (2005) found five IGS1 'copies' in Armillaria tabescens, and Selosse et al (1996) recovered two IGS1 'haplotypes' in Laccaria bicolor and also reported no differences between multiple clones of the same 'haplotype' (with the exception of PCR-mediated chimeric sequences e discussed below). Selosse et al (1998) also recovered two IGS1 sequences in an introduced American strain of L. bicolor to a French forest plantation.…”

Section: Introductionmentioning

confidence: 99%

“…One particular marker, the IGS1, has been used for a variety of population-level studies of the fleshy fungi (e.g. Carbone et al 1999;Schnabel et al 2005). However, it is not known how useful the IGS1 is for most fungi including Rhodocollybia laulaha (Basidiomycota, Marasmiaceae), a potential model system of microevolutionary processes used to study dispersal, establishment, and divergence among fungi across the Hawaiian Archipelago (Keirle et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Variability in the IGS1 region of Rhodocollybia laulaha: is it allelic, genomic, or artificial?

et al. 2011

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Identification and characterization of Armillaria tabescens from the southeastern United States

Cited by 36 publications

References 29 publications

Advances toward DNA-based identification and phylogeny of North American Armillaria species using elongation factor-1 alpha gene

Advances toward DNA-based identification and phylogeny of North American Armillaria species using elongation factor-1 alpha gene

Populations of Armillaria species in pine plantations in west-central Poland

Variability in the IGS1 region of Rhodocollybia laulaha: is it allelic, genomic, or artificial?

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