Navigation Links
UT researcher sheds new light on hybrid animals
Date:9/17/2007

alifornia Tiger salamander, which is native to the area of the study, is listed as threatened under the U.S. Endangered Species Act, while the Barred Tiger salamander is not. The data in the article lead the researchers to predict that eventually all California Tiger salamanders will have some of the non-native genes. In a sense, the entire species would then have hybrid ancestry.

According to Fitzpatrick, the finding raises questions about whether this would be considered beneficial to the native species or not -- it depends on how conservationists choose to define the new hybrid.

"If they consider it an acceptable modification of the original species, then this could enhance the chances for survival of the California Tiger salamander," he said, "but others may consider the hybrids to be genetically impure and see hybridization as accelerating extinction."

It is not yet clear from the research what is causing the hybrids to thrive.

"Our prediction is that, because of their advantages, the hybrids will remain part of the gene pool," said Fitzpatrick. "What we don't know is if those advantages come from the synergistic interaction of certain genes -- that they are greater than the sum of their parts -- or if they simply get the 'best of both worlds' by a selection of useful individual traits from each species."

Because the research is in such early stages, Fitzpatrick and colleagues plan to broaden their study of these salamanders, and also explore the implications of these vigorous hybrids for other animals in their ecosystem.

They have expanded the number of genetic markers that they are analyzing in the hybrids to determine the extent of their genetic mixing. Given that the new hybrids are finding more success in their environment, the researchers also plan to study whether their success is reducing food supply or other resources from native species in the area.

Fitzpatrick notes that their discoveries p
'/>"/>

Contact: Jay Mayfield
jay.mayfield@tennessee.edu
865-974-9409
University of Tennessee at Knoxville
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Researchers discover way to make cells in the eye sensitive to light
2. Researchers find how protein allows insects to detect and respond to pheromones
3. Researchers Uncover Key Step In Manufacture of Memory Protein
4. U of M researcher examines newly emerging deadly disease
5. NYU researchers simulate molecular biological clock
6. Researchers reveal the infectious impact of salmon farms on wild salmon
7. Researchers identify target for cancer drugs
8. Vital step in cellular migration described by UCSD medical researchers
9. ASU researchers finds novel chemistry at work to provide parrots vibrant red colors
10. UCSD researchers maintain stem cells without contaminated animal feeder layers
11. Researchers discover molecule that causes secondary stroke
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/20/2013)... Geology articles posted online ahead of ... wide swath of geoscience subdisciplines, including minerals exploration, ... Locations studied include Siberia; the Sumatran subduction margin; ... Ukraine; Mars; and the Southeastern U.S. Atlantic Margin. ... and plate tectonics;, 2. The clear fingerprint of ...
(Date:5/19/2013)... have engineered a strain of photosynthetic cyanobacteria to grow ... findings today at the 113th General Meeting of the ... used synthetic biology approaches to probe and rewire photoautotrophic ... growth) cyanobacterial metabolism for the ability to grow without ... the study. He is part of Shota Atsumi,s ...
(Date:5/18/2013)... 18, 2013) Research presented at Digestive Disease ... health through diet and lifestyle. , Individuals ... reduced muscle strength, fatigue and poor quality of ... are in remission. A randomized, double blind, placebo-controlled ... D supplementation corresponded to significant relief of these ...
Breaking Biology News(10 mins):New in GEOLOGY: Gems, Darwin, Mars, Hemp, Snowball Earth, a Siberian Impact Crater, and More 2New in GEOLOGY: Gems, Darwin, Mars, Hemp, Snowball Earth, a Siberian Impact Crater, and More 3New in GEOLOGY: Gems, Darwin, Mars, Hemp, Snowball Earth, a Siberian Impact Crater, and More 4New in GEOLOGY: Gems, Darwin, Mars, Hemp, Snowball Earth, a Siberian Impact Crater, and More 5New in GEOLOGY: Gems, Darwin, Mars, Hemp, Snowball Earth, a Siberian Impact Crater, and More 6New in GEOLOGY: Gems, Darwin, Mars, Hemp, Snowball Earth, a Siberian Impact Crater, and More 7New in GEOLOGY: Gems, Darwin, Mars, Hemp, Snowball Earth, a Siberian Impact Crater, and More 8New in GEOLOGY: Gems, Darwin, Mars, Hemp, Snowball Earth, a Siberian Impact Crater, and More 9New in GEOLOGY: Gems, Darwin, Mars, Hemp, Snowball Earth, a Siberian Impact Crater, and More 10New in GEOLOGY: Gems, Darwin, Mars, Hemp, Snowball Earth, a Siberian Impact Crater, and More 11Research examines new methods for managing digestive health 2Research examines new methods for managing digestive health 3
... full recovery of ecological systems, following the most devastating ... million years, according to new research from the University ... the end of the Permian, a major extinction event ... including insects, plants, marine animals, amphibians, and reptiles. Ecosystems ...
... on Demand,web-hosted employee time and attendance service announces ... clock. The unique data,collection device is Internet-ready, instantly ... web hosted employee time tracking system,Attendance on Demand. ... set-up,needed., The HP WebNet, available exclusively from ...
... 2008 -- Oak Ridge National Laboratory will lead ... industry initiated through the U.S. Automotive Partnership for ... today at the North American International Auto Show ... of federal and private partners, USAutoPARTs, will perform ...
Cached Biology News:Recovering from a mass extinction 2Web-Hosted Attendance on Demand(R) Introduces Innovative Web Time Clock 2Oak Ridge to lead auto supplier R&D partnership 2Oak Ridge to lead auto supplier R&D partnership 3
(Date:5/20/2013)... In Early 2013, Dr. Ritchie Shoemaker, internationally ... , announced his vision for creating a network of ... for treating Chronic Inflammatory Response Syndrome (CIRS). This week, ... certification in the Shoemaker Protocol. , “Creating a ... Protocol in other parts of the country, is enabling ...
(Date:5/19/2013)... New York, NY (PRWEB) May 19, 2013 ... largest solar boat, today announced a new speed record ... Having left from Las Palmas, Spain, on April 25, ... across the Atlantic Ocean at the average speed of ... French West Indies on May 18, 2013. The first-of-its-kind ...
(Date:5/17/2013)... May 17, 2013 Topricin Pain ... Inc., has been listed among nationally recommended over-the-counter ... initiative conducted by "U.S. News" Health in collaboration ... the “No. 1 Pharmacists Recommended designation” in ... national OTC brands, and is the only homeopathic ...
(Date:5/17/2013)... Oven Industries Inc. announces a new temperature control ... many user-friendly benefits. Contained all in one enclosure, the ... self-contained temperature control system, which has its ... unique, as well as highly convenient for users. ... which allows the user to use the device wherever ...
Breaking Biology Technology:Dr. Ritchie Shoemaker Certifies Third Physician in His Treatment Protocol for Chronic Inflammatory Response Syndrome (CIRS) 2MS Tûranor PlanetSolar Sets World Speed Record for Transatlantic Crossing by Solar Electric Vessel 2MS Tûranor PlanetSolar Sets World Speed Record for Transatlantic Crossing by Solar Electric Vessel 3MS Tûranor PlanetSolar Sets World Speed Record for Transatlantic Crossing by Solar Electric Vessel 4MS Tûranor PlanetSolar Sets World Speed Record for Transatlantic Crossing by Solar Electric Vessel 5MS Tûranor PlanetSolar Sets World Speed Record for Transatlantic Crossing by Solar Electric Vessel 6Pharmacists' Picks: Topical BioMedics' Topricin Listed on Top Recommended OTC Health Products 2New Temperature Control Products Announced by Oven Industries Inc. 2
... Beam Shaping Device Optimized for Targeting Tumors ... Radiotherapy and Radiosurgery, PALO ALTO, Calif., ... VAR ) has received FDA 510(k) ... an ultra-fine beam shaping,device for radiosurgery. ...
... Medical Solutions (http://www.usa.siemens.com/medical ) and Xintek Inc.,announce ... establish a joint,venture company in Research Triangle Park, ... Systems, is to develop a new multi-pixel X-ray ... applications. (Logo: http://www.newscom.com/cgi-bin/prnh/20070904/SIEMENSLOGO ) ...
... reader on biometrics access control ... approved products list for airports, TORONTO, Sept. ... enterprise access control technology, today announced,that its V-Station MIFARE V9.50 ... on the TSA,s "Biometrics for,Access Control" Qualified Products List (QPL). ...
Cached Biology Technology:Varian Medical Systems Receives FDA 510(k) Clearance for High-Definition Collimator That Enables Ultra-Fine Intensity-Modulated Radiosurgery 2Varian Medical Systems Receives FDA 510(k) Clearance for High-Definition Collimator That Enables Ultra-Fine Intensity-Modulated Radiosurgery 3Siemens and Xintek Form Joint Venture to Develop Nanotechnology-Enabled Multi-Pixel X-ray Tubes 2Bioscrypt's V-Station MIFARE Placed on Transportation Security Administration's Qualified Products List 2Bioscrypt's V-Station MIFARE Placed on Transportation Security Administration's Qualified Products List 3
... The new MyiQ real-time PCR detection ... detection of common green fluorescent dyes such ... system interfaces directly with the iCycler thermal ... gradient and Peltier-effect driven performance. The MyiQ ...
... is the method of choice for thousands ... only instrument to offer both LCM and ... UV Laser Cutting provides unprecedented speed ... capturing large numbers of cells. , ...
... Simultaneously perform 96 assays on one plate. ... microarray plate with 96 (7mm x 7mm) ... gene expression, or screening analysis studies. Unlike ... fit gasket, eliminating the presence of contaminating ...
... Simultaneously perform 96 assays on four slides. ... microarray slides with 96 (6mm x 7mm) ... gene expression, or screening analysis studies. Unlike ... fit gasket, eliminating the presence of contaminating ...
Biology Products: