Results 31 to 40 of about 860,536 (318)

Survival of environmental DNA in sediments: Mineralogic control on DNA taphonomy [PDF]

open access: yesEnvironmental DNA, 2020
Abstract Extraction of environmental DNA (eDNA) from sediments are providing ground-breaking views of the past ecosystems and biodiversity. Despite this rich source of information, it is still unclear which sediments favour preservation and why.
Freeman, C.L.   +6 more
openaire   +5 more sources

Digging for DNA at depth: rapid universal metabarcoding surveys (RUMS) as a tool to detect coral reef biodiversity across a depth gradient [PDF]

open access: yesPeerJ, 2019
Background Effective biodiversity monitoring is fundamental in tracking changes in ecosystems as it relates to commercial, recreational, and conservation interests. Current approaches to survey coral reef ecosystems center on the use of indicator species
Joseph D. DiBattista   +6 more
doaj   +2 more sources

Metagenomics: DNA sequencing of environmental samples [PDF]

open access: yesNature Reviews Genetics, 2005
Although genomics has classically focused on pure, easy-to-obtain samples, such as microbes that grow readily in culture or large animals and plants, these organisms represent only a fraction of the living or once-living organisms of interest. Many species are difficult to study in isolation because they fail to grow in laboratory culture, depend on ...
Tringe, Susannah Green, Rubin, Edward M.
openaire   +3 more sources

Maternal nutritional status, C1 metabolism and offspring DNA methylation: a review of current evidence in human subjects. [PDF]

open access: yes, 2011
: Evidence is growing for the long-term effects of environmental factors during early-life on later disease susceptibility. It is believed that epigenetic mechanisms (changes in gene function not mediated by DNA sequence alteration), particularly DNA ...
Dominguez Salas, Paula   +19 more
core   +1 more source

Persistence of environmental DNA in marine systems [PDF]

open access: yesCommunications Biology, 2018
AbstractAs environmental DNA (eDNA) becomes an increasingly valuable resource for marine ecosystem monitoring, understanding variation in its persistence across contrasting environments is critical. Here, we quantify the breakdown of macrobial eDNA over a spatio-temporal axis of locally extreme conditions, varying from ocean-influenced offshore to ...
Rupert A. Collins   +5 more
openaire   +7 more sources

Reporting the limits of detection and quantification for environmental DNA assays [PDF]

open access: yes, 2019
Background Environmental DNA (eDNA) analysis is increasingly being used to detect the presence and relative abundance of rare species, especially invasive or imperiled aquatic species.
Mangan, Anna M.   +13 more
core   +2 more sources

Discovery of cyanophage genomes which contain mitochondrial DNA polymerase [PDF]

open access: yes, 2011
DNA polymerase γ is a family A DNA polymerase responsible for the replication of mitochondrial DNA in eukaryotes. The origins of DNA polymerase γ have remained elusive because it is not present in any known bacterium, though it has been hypothesized that
Whitworth, Anna L.   +19 more
core   +1 more source

Impact of DNA lesion repair, replication and formation on the mutational spectra of environmental carcinogens: Aflatoxin B1 as a case study [PDF]

open access: yes, 2020
In a multicellular organism, somatic mutations represent a permanent record of the past chemical and biochemical perturbations experienced by a cell in its local microenvironment.
Essigmann, John M., Fedeles, Bogdan I.
core   +1 more source

Environmental DNA test validation guidelines [PDF]

open access: yes, 2023
The use of molecular assays to assess the presence of species using environmental DNA (eDNA) and RNA (eRNA) as analytes has diversified as the field of environmental surveillance advances.
Furlan, E   +15 more
core   +1 more source

On a roll: a direct comparison of extraction methods for the recovery of eDNA from roller swabbing of surfaces

open access: yesBMC Research Notes, 2023
Objective Roller swabbing of surfaces is an effective way to obtain environmental DNA, but the current DNA extraction method for these samples is equipment heavy, time consuming, and increases potential contamination through multiple handling.
Austin M. Guthrie   +4 more
doaj   +1 more source

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