Lost and found: the Bermudan Donadinia seaveri found in North America, with comments on its juniper associates

Mycologia ◽  
2018 ◽  
Vol 110 (1) ◽  
pp. 215-221
Author(s):  
Pfister ◽  
LoBuglio
Keyword(s):  
North America ◽  
Internal Transcribed Spacer ◽  
Its Region ◽  
28S Rdna ◽  
Eastern North America ◽  
Lost And Found ◽  
Insect Attack

Collections of a species referred to Sarcosomataceae (Pezizomycetes) from eastern North America were studied both morphologically and using nuc rDNA internal transcribed spacer (ITS) region (ITS1-5.8S-ITS2 = ITS) and approximately 800 bp from the 5′ region of the nuc 28S rDNA (28S) to construct a phylogeny. The analyses indicate that these collections are Donadinia seaveri, a species previously known only from Bermuda. Because the associated tree, Juniperus bermudiana, has declined as a result of insect attack, it was thought that D. seaveri might be extinct. This work indicates that it is not extinct but is present in eastern North America. The species is described, new distributional records are given, and its association with the genus Juniperus is discussed.

rDNA internal transcribed spacer sequence analysis of Craterellus tubaeformis from North America and Europe

2011 ◽  
Vol 57 (1) ◽  
pp. 29-32
Author(s):  
Zhou Guo-ying ◽  
Guo Liang ◽  
Li Lin ◽  
Li He
Keyword(s):  
North America ◽  
Internal Transcribed Spacer ◽  
Information Sources ◽  
Geographical Location ◽  
Its Region ◽  
Molecular Evidence ◽  
Nrdna Its ◽  
Geographic Locations ◽  
Sequence Variations ◽  
Other Information

The basidiomycete Craterellus tubaeformis (Fries) Quélet is an important widespread ectomycorrhizal basidiomycete found in the Northern Hemisphere. In this study, 12 samples of C. tubaeformis from North America and Europe were analyzed using internal transcribed spacer (ITS) sequences to reveal the correlation between ITS genotypes and geographic locations and to provide molecular evidence for the identification of C. tubaeformis from different habitats in North America and Europe. The analyses identified abundant sequence variations within C. tubaeformis. The length of the ITS region varied from 571 to 640 bp. The proportion of variable sites was 17.6%, and the proportion of parsimony information sites was 16.7%. Phylogenetic analysis showed some correlations between the ITS genotypes and geographic locations of C. tubaeformis; however, some discrepancies between geographical location and affinity were also found. The results indicated that C. tubaeformis from different habitats in North America and Europe underwent genetic drifting and evolved into 2 different species. nrDNA ITS could be a good markers for distinguishing among C. tubaeformis from different habitats, but rational affinity should be determined by associating the available ITS data with other information sources.

Cunninghamella binariae, Mucor ardhlaengiktus, Mucor gigasporus and Umbelopsis changbaiensis, newly recorded species from amphibian feces and soil in Korea

Phytotaxa ◽  
2019 ◽  
Vol 425 (1) ◽  
pp. 19-34
Author(s):  
THUONG T.T. NGUYEN ◽  
KEVIN D. HYDE ◽  
HYANG BURM LEE
Keyword(s):  
Sequence Analysis ◽  
Internal Transcribed Spacer ◽  
Morphological Characteristics ◽  
Its Region ◽  
Soil Samples ◽  
28S Rdna ◽  
Rdna Sequences ◽  
28S Rdna Sequences

Four strains, CNUFC SKT18002, CNUFC FKT18033, CNUFC SKT19001, and CNUFC SKT18228 were isolated during an investigation of fungi belonging to the orders Mucorales and Umbelopsidales from amphibian feces and soil samples in Korea. Based on morphological characteristics and the sequence analysis of the internal transcribed spacer (ITS) region and 28S rDNA sequences, the strains CNUFC SKT18002, CNUFC FKT18033, CNUFC SKT19001, and CNUFC SKT18228 were identified as Cunninghamella binariae, Mucor ardhlaengiktus, Mucor gigasporus, and Umbelopsis changbaiensis, respectively. To the best of our knowledge, the species C. binariae, M. ardhlaengiktus, M. gigasporus, and U. changbaiensis have not been previously reported in Korea.

Relationships among problematic North American stagnicoline snails (Pulmonata: Lymnaeidae) reinvestigated using nuclear ribosomal DNA internal transcribed spacer sequences

1997 ◽  
Vol 75 (9) ◽  
pp. 1540-1545 ◽  
Author(s):  
E. A. Remigio ◽  
D. Blair
Keyword(s):  
North America ◽  
Ribosomal Dna ◽  
Internal Transcribed Spacer ◽  
Its Region ◽  
Nucleotide Sequences ◽  
Its Sequences ◽  
Nuclear Ribosomal Dna ◽  
Snail Species ◽  
Separate Species ◽  
Internal Transcribed Spacer Sequences

The taxonomic relationships among four stagnicoline snail species from North America were reassessed by analysing nucleotide sequences from their nuclear ribosomal internal transcribed spacer (ITS) region. Three of the species (Stagnicola catascopium, Stagnicola emarginata, and Stagnicola elodes) are representatives of the subgenus Stagnicola s.str. from the northern U.S.A. and the fourth is a closely related Canadian species (Stagnicola caperata) belonging to the subgenus Hinkleyia. Members of the two subgenera differed considerably in their ITS sequences, demonstrating the usefulness of these sequences for distinguishing species from closely related lymnaeid subgenera. In contrast, ITS sequences for the three members of the subgenus Stagnicola s.str. were very similar, which supports an earlier view that they may not be separate species.

The Identification and Study of Indian Shell Middens in Eastern North America: 1643–1861

1986 ◽  
Vol 6 (3) ◽  
pp. 227-243 ◽  
Author(s):  
Andrew L. Christenson
Keyword(s):  
Nineteenth Century ◽  
Civil War ◽  
North America ◽  
East Coast ◽  
Eastern North America ◽  
Shell Midden ◽  
Shell Middens ◽  
Work Done

Although the interest in shell middens in North America is often traced to reports of the discoveries in Danish kjoekkenmoeddings in the mid-nineteenth century, extensive shell midden studies were already occurring on the East Coast by that time. This article reviews selected examples of this early work done by geologists and naturalists, which served as a foundation for shell midden studies by archaeologists after the Civil War.

HAVE WE SEEN THE LARGEST EARTHQUAKES IN EASTERN NORTH AMERICA?

2018 ◽  
Author(s):  
James S. Neely ◽  
◽  
Seth Stein ◽  
Miguel Merino ◽  
John Adams
Keyword(s):  
North America ◽  
Eastern North America
Sign in / Sign up

Export Citation Format

Share Document