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Latest DNA barcoding Stories

Ray Wings Sold To Consumers Can Be MislabeledAnd Include Vulnerable Species
2013-08-13 12:11:30

PeerJ Genetic testing by DNA Barcoding, has revealed which species are sold under the commercial term 'ray wings' in Ireland and the UK. The blonde ray, given the lowest rating for sustainability in the marine conservation society's good fish guide, was the most widely sold. Samples from the only retailer to label products as originating from more sustainable sources demonstrated high levels of mislabelling, substituted by more vulnerable species. Therefore, consumers cannot make informed...

DNA Used To Quickly Unravel Relationship Between Plants And Insects
2013-03-25 15:54:44

Smithsonian Studying the relationship between plants and the insects that feed on them is an arduous task, as it must be done through direct observation. It can take years for a researcher to fully understand the diets of a community of herbivorous insects in a tropical rain forest. Now, five Smithsonian scientists are paving a fast track using the DNA found inside the insects' stomachs, potentially turning years of research into months. This method will help scientists understand the...

2012-09-19 17:01:24

DNA barcoding developed by University of Guelph researchers has proven up to 88 per cent effective in authenticating natural health products, according to a new U of G study. The study appears in the latest issue of Food Research International. It´s a crucial finding because the health product industry is under-regulated worldwide and mislabeling poses economic, health, legal and environmental implications, says study author Mehrdad Hajibabaei. “Currently there is no other...

2012-07-19 13:46:06

Researchers address great uncertainties in number of species and emphasize the use of technology to accelerate the rate of species discovery Most of the world's species are still unknown to science although many researchers grappled to address the question of how many species there are on Earth over the recent decades. Estimates of non-microbial diversity on Earth provided by researchers range from 2 million to over 50 million species, with great uncertainties in numbers of insects, fungi,...

Highly Disconnected Crane Fly Species Discovered Using DNA barcoding
2012-05-18 11:41:07

Northwestern Europe harbors one of the best known biotas , thanks to the long faunistic and floristic traditions practiced there. However, some animal groups are far better known than others. The diversity of true flies there is fascinating, and undescribed species of flies, midges and gnats are not uncommon. Because Northwestern Europe was almost totally glaciated as recently as 10 000 years ago, endemic animal species of that region are generally lacking, or are exceptions. Hence, most NW...

2012-03-24 03:32:53

The important changes to the way scientists name new plants that took effect on 1 January 2012 included the fall of the so-called Latin requirement - a stipulation that descriptions or diagnoses of new species had to be in Latin. The new rules make it possible to take full advantage of an ongoing revolution in how botanists and mycologists verify that a particular species is indeed new to science: Many studies now routinely include the sequencing of short DNA regions that will amplify...

2012-02-15 10:28:00

Museum Scientists help Orthodox Union analyze nematodes in canned sardines, capelin eggs When rabbis from the Orthodox Union started finding worms in cans of sardines and capelin eggs, they turned to scientists at the American Museum of Natural History to answer a culturally significant dietary question: could these foods still be considered kosher? Using a technique called "DNA barcoding" at the Museum's Sackler Institute for Comparative Genomics, researchers identified the species and...

DNA Testing For Seafood
2011-11-28 11:22:56

The US Food and Drug Administration (USDA) recently officially approved DNA barcoding for seafood in hopes of preventing the growing issue of the mislabeling, both locally produced and imported, into the United States, Rod McGuirk of the Associated Press (AP) reports. Regulators from other countries are also considering adopting DNA barcoding as a cost-effective and highly reliable tool for identifying organic matter. The barcoding of DNA is essentially a standardized fingerprint that can...

sciencepress-082511-002
2011-08-25 10:42:33

  In one of the first taxonomic revisions of Neotropical butterflies that utilizes 'DNA barcoding', Andrei Sourakov (University of Florida, Florida Museum of Natural History) and Evgeny Zakharov (University of Guelph, Canadian Centre for DNA Barcoding at the Biodiversity Institute of Ontario) uncovered a spectacular degree of evolutionary divergence within the satyrine butterfly genus Calisto. The study was published in the open-access journal Comparative Cytogenetics. The...


Word of the Day
virgule
  • A punctuation mark (/) used to separate related items of information.
  • A little rod; a twig.
This word comes from the Late Latin 'virgula,' accentual mark, a diminutive of 'virga,' rod.
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