Navigation Links
Genetic markers for tracking species
Date:4/25/2012

"In the DNA of living beings, we have identified sections as DNA barcodes that, while being almost identical within a certain species, differ among the various species," explained Prof. Dr. Dietmar Quandt from the Nees Institute for Biodiversity of Plants at the University of Bonn. "Based on these markers, we can then identify species unambiguously and relatively fast." The result of this analysis resembles a barcode at the supermarket; only that it does not come in black and white, but in four colors, with each one corresponding to one of the four letters of the genetic code.

What counts is only (the genetic) make-up

In classical biological taxonomy, animals and plants are identified by their external characteristics. "It is in species of a genus that resemble each other very closely, such as sedges, that definite identification can be a very long process," reported Prof. Quandt, Speaker for the botanical project within the GBOL Initiative. "In addition, we have to rely on competent experts here, who unfortunately are a dying breed nationally." Fully automated sequencing of DNA, however, allows identifying plants much faster. "Besides, we do not need flowering and complete plants," added Stefanie Winter, one of Prof. Quandt's doctoral candidates. "A tiny fragment, e.g., from a leaf, is sufficient for identifying the species based on its genetic markers."

More than 5,000 plant species to be collected

In the GBOL Project, the scientists first want to create a library of sample material for classifying the species. In a concerted initiative with the natural history museums, nature conservancy organizations and proven experts, specific plant samples will be catalogued throughout Germany. "For this purpose, the natural history collections have proven to be invaluable treasure troves since they are providing us with some of their priceless samples," said Prof. Quandt. The challenge is enormous: There are about 4,000 flowering plants in Germany, as well as 1,300 species of mosses and ferns.

Project to Improve Monitoring of the Environment

Capturing our flora by means of DNA barcodes is intended to make monitoring environmental effects easier: How do individual species respond to climate change? Are certain species being replaced by living organisms that have been imported from other countries? Which species are threatened with extinction? "Given the many threats for life on Earth, environmental monitoring is becoming more important," said Prof. Quandt. "The DNA barcodes can simplify and accelerate such studies considerably."


'/>"/>
Contact: Prof. Dr. Dietmar Quandt
quandt@uni-bonn.de
0049-228-733-315
University of Bonn
Source:Eurekalert

Related biology news :

1. New genetic mechanism of immune deficiency discovered
2. Researchers across North America team up to find genetic markers for autism
3. Not by DNA alone: How the epigenetics revolution is fostering new medicines
4. Genetically modified corn affects its symbiotic relationship with non-target soil organisms
5. New genetically engineered mice aid understanding of incurable neuromuscular disease
6. Zip code as important as genetic code in childhood obesity
7. Rapid method of assembling new gene-editing tool could revolutionize genetic research
8. Head and body lice appear to be the same species, genetic study finds
9. 23andMe identifies 5 significant genetic associations for hypothyroidism
10. New genetic bar code technique establishes ability to derive DNA information from RNA
11. New lab mice cut search for genetic links to disease by more than a decade
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/25/2016)... , Jan. 25, 2016   Unisys Corporation (NYSE: ... John F. Kennedy (JFK) International Airport, New York City ... (CBP) identify imposters attempting to enter the United States ... to them. pilot testing of the system at ... three terminals at JFK during January 2016. --> pilot ...
(Date:1/22/2016)... Jan. 22, 2016 ... of the "Global Biometrics Market in ... offering. --> http://www.researchandmarkets.com/research/p74whf/global_biometrics ) ... "Global Biometrics Market in Retail Sector 2016-2020" ... --> Research and Markets ( http://www.researchandmarkets.com/research/p74whf/global_biometrics ...
(Date:1/20/2016)... , Jan. 20, 2016   MedNet Solutions , ... entire spectrum of clinical research, is pleased to announce ... significant achievements are the result of the company,s laser ... iMedNet eClinical , it,s comprehensive, easy-to-use and highly ... --> Key MedNet growth achievements in 2015 ...
Breaking Biology News(10 mins):
(Date:2/5/2016)... 2016 Amarantus BioScience Holdings, Inc. ... on developing products for Regenerative Medicine, Neurology and Orphan ... Designation (RPDD) from the US Food and Drug Administration ... was previously granted orphan drug designation (ODD) by the ... BioScience Holdings, Inc. (OTCQB: AMBS), a ...
(Date:2/4/2016)... , Feb. 4, 2016  Sangamo BioSciences, Inc. (NASDAQ: ... announced today that Edward Lanphier , Sangamo,s president ... the progress of Sangamo,s ZFP Therapeutic ® development ... at 2:40 pm ET on Thursday, February 11, 2016, ... Healthcare Conference. The conference is being held in ...
(Date:2/4/2016)... , Feb. 4, 2016  CytoSorbents Corporation (NASDAQ: ... commercializing its flagship CytoSorb® blood filter to treat ... around the world, announced that CEO Dr. ... the Source Capital Group,s 2016 Disruptive Growth & ... the company.  Conference Presentation Details: ...
(Date:2/4/2016)... BETHESDA, Md. , Feb. 4, 2016  Spherix ... committed to the fostering and monetization of intellectual property, ... VTech and Uniden in the Northern District of ... are moving forward.  Inter Partes ... the U.S. Patent Office.  The IPR was initiated on ...
Breaking Biology Technology: