Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Genome yields insights into golden eagle vision, smell

25.04.2014

Purdue and West Virginia University researchers are the first to sequence the genome of the golden eagle, providing a bird's-eye view of eagle features that could lead to more effective conservation strategies.

Their study calls into question long-held assumptions about golden eagle vision, indicating that the raptors may not be as sensitive to ultraviolet light as previously thought. The genome also suggests that golden eagles could have a sharper sense of smell than researchers realized.


This is a golden eagle.

Credit: Todd Katzner

Additionally, the genome provides thousands of genetic markers that will help researchers track populations and monitor eagle mortality.

"Having the golden eagle genome in hand could directly affect the way we make conservation and management decisions," said Jacqueline Doyle, postdoctoral research associate and first author of the paper.

Though it is one of the most widespread avian species, the golden eagle is threatened throughout much of its range by poaching, shrinking habitats and fatal collisions with wind turbines. An estimated 67 golden eagles are killed annually at a single wind farm - the Altamont Pass Wind Resource Area in central California - a heavy toll on a species that reproduces slowly and can live up to 30 years, said J. Andrew DeWoody, professor of genetics and senior author of the study.

One recently proposed method of reducing turbine-related eagle deaths was to coat wind turbines with ultraviolet-reflective paint, thereby heightening their visibility to eagles, which were thought to be sensitive to ultraviolet light. But the golden eagle genome suggests that eagle vision is rooted in the violet spectrum - like human sight - rather than the ultraviolet.

"We find little genomic evidence that golden eagles are sensitive to ultraviolet light," Doyle said. "Painting wind turbines with ultraviolet-reflective paint is probably not going to prevent eagles from colliding with turbines."

Analysis of the genome also revealed that golden eagles have far more genes associated with smell than previously realized, indicating that the birds might use smell to locate prey more than researchers thought.

Doyle used the genome to identify thousands of genetic markers that together could act as a DNA "fingerprint," allowing researchers to distinguish individual birds, follow them in a population and determine population size and flux, parentage and genetic variation.

DeWoody said the markers would also help scientists track the evolution of different families of genes and identify potential golden eagle pathogens, parasites and symbiotic organisms.

The researchers generated the genome by extracting DNA from a blood sample of a golden eagle that was captured with a spring-loaded net in California. The eagle was outfitted with a Global Positioning System tracking device before its release, making it possibly the first animal to have its genome sequenced and be tracked at the same time, DeWoody said.

Team leader Todd Katzner, a research assistant professor at West Virginia University, said the GPS device could allow the team to relate the individual movements and behavior of the golden eagle to its genome.

DeWoody said the golden eagle "truly represents the wild. We want to preserve and conserve this species for future generations, and the genome will improve our ability to do that."

###

The paper was published Wednesday (April 23) in PLOS ONE and is available at http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0095599.

The U.S. Bureau of Land Management, the California Department of Fish and Wildlife and the Purdue University Provost's Office provided funding for the research.

Natalie van Hoose | Eurek Alert!

Further reports about: DNA DeWoody Genome Golden eagles eagle genes markers species ultraviolet

More articles from Life Sciences:

nachricht Scientists uncover the role of a protein in production & survival of myelin-forming cells
19.07.2018 | Advanced Science Research Center, GC/CUNY

nachricht NYSCF researchers develop novel bioengineering technique for personalized bone grafts
18.07.2018 | New York Stem Cell Foundation

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Future electronic components to be printed like newspapers

A new manufacturing technique uses a process similar to newspaper printing to form smoother and more flexible metals for making ultrafast electronic devices.

The low-cost process, developed by Purdue University researchers, combines tools already used in industry for manufacturing metals on a large scale, but uses...

Im Focus: First evidence on the source of extragalactic particles

For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.

To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...

Im Focus: Magnetic vortices: Two independent magnetic skyrmion phases discovered in a single material

For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.

Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...

Im Focus: Breaking the bond: To take part or not?

Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.

A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...

Im Focus: New 2D Spectroscopy Methods

Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.

"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Leading experts in Diabetes, Metabolism and Biomedical Engineering discuss Precision Medicine

13.07.2018 | Event News

Conference on Laser Polishing – LaP: Fine Tuning for Surfaces

12.07.2018 | Event News

11th European Wood-based Panel Symposium 2018: Meeting point for the wood-based materials industry

03.07.2018 | Event News

 
Latest News

A smart safe rechargeable zinc ion battery based on sol-gel transition electrolytes

20.07.2018 | Power and Electrical Engineering

Reversing cause and effect is no trouble for quantum computers

20.07.2018 | Information Technology

Princeton-UPenn research team finds physics treasure hidden in a wallpaper pattern

20.07.2018 | Materials Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>