Results 1 to 10 of about 145,655 (292)

The 16s/23s ribosomal spacer region as a target for DNA probes to identify eubacteria.

open access: yesPCR methods and applications, 1991
Variable regions of the 16s ribosomal RNA have been frequently used as the target for DNA probes to identify microorganisms. In some situations, however, there is very little sequence variation observed between the 16s rRNA genes of closely related ...
T. Barry   +4 more
semanticscholar   +2 more sources

Next generation sequencing analysis reveals a relationship between rDNA unit diversity and locus number in Nicotiana diploids [PDF]

open access: yes, 2012
© 2012 Matyášek et al.; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and ...
Fulnecek, J   +7 more
core   +5 more sources

Evaluation of the ribosomal DNA internal transcribed spacer (ITS), specifically ITS1 and ITS2, for the analysis of fungal diversity by deep sequencing

open access: yesPLoS ONE, 2018
The nuclear ribosomal DNA internal transcribed spacer (ITS) has been widely used to assess the fungal composition in different environments by deep sequencing.
Rui-Heng Yang   +6 more
semanticscholar   +1 more source

Long-read DNA metabarcoding of ribosomal rRNA in the analysis of fungi from aquatic environments

open access: yesbioRxiv, 2018
DNA metabarcoding is now widely used to study prokaryotic and eukaryotic microbial diversity. Technological constraints have limited most studies to marker lengths of ca. 300-600 bp.
F. Heeger   +8 more
semanticscholar   +1 more source

Testing robustness of relative complexity measure method constructing robust phylogenetic trees for Galanthus L. Using the relative complexity measure [PDF]

open access: yes, 2013
Background: Most phylogeny analysis methods based on molecular sequences use multiple alignment where the quality of the alignment, which is dependent on the alignment parameters, determines the accuracy of the resulting trees.
Bakis, Yasin   +11 more
core   +2 more sources

Tertiary-Treated Municipal Wastewater is a Significant Point Source of Antibiotic Resistance Genes Into Duluth-Superior Harbor [PDF]

open access: yes, 2011
In this study, the impact of tertiary-treated municipal wastewater on the quantity of several antibiotic resistance determinants in Duluth-Superior Harbor was investigated by collecting surface water and sediment samples from 13 locations in Duluth ...
Allen H. K.   +49 more
core   +3 more sources

Extensive Pyrosequencing Reveals Frequent Intra-Genomic Variations of Internal Transcribed Spacer Regions of Nuclear Ribosomal DNA

open access: yesPLoS ONE, 2012
Background Internal transcribed spacer of nuclear ribosomal DNA (nrDNA) is already one of the most popular phylogenetic and DNA barcoding markers. However, the existence of its multiple copies has complicated such usage and a detailed characterization of
Jingyuan Song   +14 more
semanticscholar   +1 more source

The deepest splits in Chloranthaceae as resolved by chloroplast sequences [PDF]

open access: yes, 2003
Evidence from the fossil record, comparative morphology, and molecular phylogenetic analyses indicates that Chloranthaceae are among the oldest lineages of flowering plants alive today. Their four genera (ca.
Renner, Susanne S., Zhang, Li-Bing
core   +1 more source

Finding needles in haystacks: linking scientific names, reference specimens and molecular data for Fungi [PDF]

open access: yes, 2014
DNA phylogenetic comparisons have shown that morphology-based species recognition often underestimates fungal diversity. Therefore, the need for accurate DNA sequence data, tied to both correct taxonomic names and clearly annotated specimen data, has ...
Abarenkov, K   +100 more
core   +2 more sources

Is there any genetic variation among native mexican and argentinian populations of Dalbulus maidis (Hemiptera: Cicadellidae)?. [PDF]

open access: yes, 2012
The corn leafhopper Dalbulus maidis (Delong & Wolcott) (Hemiptera: Cicadellidae) originated in Mexico, but is found from southeastern and southwestern USA to Argentina.
Bertin, Sabrina   +5 more
core   +2 more sources

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