Sentences with phrase «dna in water samples»

According to scientists at Rockefeller University, however, there may be an easier alternative: just look for the animals» DNA in water samples.

Not exact matches

Because they are so small, multiple testing methods are used, including cross-polarized light microscopy, scanning electron microscopy and PCR testing of the DNA of larvae in the water sample.

To find out whether they had evolved to cope, Andres Moreno at Stanford University in California and colleagues looked at the variation of a gene known to be involved in water retention in the kidney, called FOXI1, in DNA samples from 20 Europeans, 20 east Asians and 20 Yoruba.

Biologists from the University of Geneva (UNIGE), Switzerland, have succeeded in establishing a water quality index based solely on the DNA sequences of the diatoms present in the samples, without needing to identify each species visually.

Sequencing the DNA in a body of water, a technique called environmental DNA (eDNA) sampling, can reveal the presence of certain fish or amphibians.

Sampling of 1 liter of river water, in order to subsequently extract DNA from the organisms living in the river.

Using a water sample collected in the field, the innovative environmental DNA test can reveal whether one or more of the elusive marine mammals has been in the area within the past month.

The samples were analyzed in a quantitative DNA detector, a state - of - the - art device which separates each water sample into as many as 20,000 droplets and analyzes each of them for traces of manatee DNA.

The team developed a genetic marker that signals the presence of those DNA segments in a concentrated water sample from the animals» environment.

Although Jack and Malcolm had never met F2F, they were a tight team with a good rep on the Distributed Biology Network: gene hunters who amplified bacterial DNA from soil and water samples, shotgun sequenced it, and identified genes that weren't in the catalogs.

«For the first time, we've successfully recorded a spring fish migration simply by conducting DNA tests on water samples,» says Mark Stoeckle, senior research associate in the Program for the Human Environment.

Indeed, symposium talks covered diverse topics such as using DNA sequencing to track biodiversity in water samples from Monterey Bay (Collin Closek) as well as using crowdsourcing to create an open repository of research talks (Rajan Vaish).

Quantitative real - time PCR (qPCR) DNA - based method specifically for testing Legionella pneumophila in water samples that has the advantage of much greater sensitivity coupled with the potential to provide results in as little as 24 hrs after submission to the lab.