Navigation Links
Scientists decode genome of painted turtle, revealing clues to extraordinary adaptations
Date:4/10/2013

hich are present in humans, may be important candidates for exploring oxygen-deprivation treatment in humans, the researchers noted.

Many of the extreme adaptations the researchers studied, such as the ability to survive months of anoxia total oxygen depletion are primarily seen in painted turtles, and the western painted turtle is the most anoxia-tolerant terrestrial vertebrate known. At low temperatures, such as in the ice-covered ponds where they hibernate, painted turtles can survive for four months underwater without coming up for air. Turtles are also famous for their extreme longevity, with some species even continuing to reproduce into their second century of life.

But when the research team examined genes that may be responsible for turtles' longevity, instead of finding super-active genes like the ones protecting them from oxygen deprivation, the scientists found indications that turtles' long life spans may come from silencing "life-shortening" genes.

"We looked at two genes that are either absent or severely down-regulated in other animals that live a long time," Shaffer said. "We found turtles have only non-functioning vestiges of these genes, if they have them at all. Both of these genes are present and active in humans, so they're an appealing candidate to learn about human longevity."

Analysis of the turtle genome confirmed that the shelled creatures are more closely related to birds and crocodilians than any other vertebrates. The researchers also discovered that turtles have an extraordinarily slow rate of genomic evolution and that the turtle genome evolves at about a third the rate of the human genome.

One aspect of turtle evolution that is progressing rapidly, however, is the threat of extinction. More than half of the 330 turtle species worldwide are considered threatened, making them the most endangered major group of vertebrates. Their demise is largely due to humans, partly the result
'/>"/>

Contact: Alison Hewitt
ahewitt@support.ucla.edu
310-206-5461
University of California - Los Angeles
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. 8 M € from EU to enhance access by scientists to the largest European biobanks
2. CSHL neuroscientists show jumping genes may contribute to aging-related brain defects
3. NYSCF scientists develop new protocol to ready induced pluripotent stem cell clinical application
4. Scientists find government justification of new environmental policy unfounded
5. NYSCF scientists develop 3-D stem cell culture technique to better understand Alzheimers disease
6. UGA discovery may allow scientists to make fuel from CO2 in the atmosphere
7. UT MD Anderson scientists uncover the nuclear life of actin
8. Scientists awarded £3M to study the way Northwest European seas absorb carbon
9. Scientists reveal quirky feature of Lyme disease bacteria
10. Scientists create new tools for battling secondhand smoke
11. Academy scientists receive top honors for long-term research and training initiatives in Mongolia
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/17/2014)... 16, 2014  Automation is fundamentally transforming the ... than at international borders. Over the past decade, ... allowed veteran travelers to self process through border ... Kiosks at an increasing number of airports, seaports, ... According to Maxine Most , Principal ...
(Date:12/11/2014)... WINSTON SALEM, N.C. , Dec. 10, 2014  That ... known for quite a while. Hypertension – the medical term ... disease in the early 1800s, and the inflatable cuff that,s ... That doesn,t, however, mean there,s nothing new about hypertension, ... punctured some long-held beliefs about the condition and the best ...
(Date:12/10/2014)... , Dec. 9, 2014  Wake Forest Baptist Medical ... building for its School of Medicine. Funding for this ... capital campaign that will be publicly launched next summer. ... located in the former 60 series R.J. Reynolds Tobacco ... Quarter. Construction will begin immediately with plans to be ...
Breaking Biology News(10 mins):Automated Border Control (ABC) Transforms the Global Travel Experience With More Than 2500 ABC eGates and APC Kiosks Deployed In Airports, Seaports, and Land Borders Worldwide 2Research points to need for new approaches to treatment of high blood pressure 2Research points to need for new approaches to treatment of high blood pressure 3Research points to need for new approaches to treatment of high blood pressure 4Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 2Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 3Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 4
... The presentation ceremony in this inaugural edition ... will take place on Thursday, June 18, under ... and Innovation, Cristina Garmendia, and the BBVA Foundation ... will include leading representatives from the international scientific ...
... in representing natural climate archives. For the temperate ... annual rings depend mainly on temperature and precipitation. ... the correlation is not so evident. Now scientists ... their colleagues of the Australian National University have been ...
... Caribou and reindeer numbers worldwide have plunged almost 60% ... came out of the first ever comprehensive census analysis ... the University of Alberta. The results have recently ... Biology Journal and co-author PhD student Liv Vors ...
Cached Biology News:The BBVA Foundation presents its Frontiers of Knowledge Awards 2Australia's climate: Drought and flooding in annual rings of tropical trees 2
(Date:12/19/2014)... Reports from CDC show ... from one or more chronic health conditions - including ... address some of these diseases, but may not eliminate ... face. While implanted nerve stimulation devices today offer relief, ... which can induce side effects. , To eliminate ...
(Date:12/19/2014)... -- Decision Resources Group finds that the Asia ... through 2023 as the aging population, increasing adoption of ... all spur procedure volumes. Growth will be particularly rapid ... and India , where rising ... a larger proportion of the population. Other ...
(Date:12/17/2014)... Based on the revenues gained from ... is dominated by four major players contributing to ... players include GE Healthcare (U.K.), Siemens AG (Germany), ... Full Report Copy at http://www.marketsandmarkets.com/Market-Reports/surgical-imaging-market-210534462.html , ... attributed to its strong product portfolio, which includes ...
(Date:12/17/2014)... This report is a professional ... For an overview analysis, the report introduces quartz ... structure, industry overview, policy analysis, and news analysis, ... has witnessed rapid development with key manufacturers increasing ... report mentions quartz tubing upstream raw materials and ...
Breaking Biology Technology:Draper Wins GSK Funding for Smaller, Smarter Implantable Devices 2Asia Pacific Dental Biomaterial Market Will Grow Strongly Through 2023 2Asia Pacific Dental Biomaterial Market Will Grow Strongly Through 2023 3Global Refurbished Surgical Imaging Market by Product & Application is Estimated to Reach $1.25 Billion by 2019 - New Research Report by MarketsandMarkets 2Global Refurbished Surgical Imaging Market by Product & Application is Estimated to Reach $1.25 Billion by 2019 - New Research Report by MarketsandMarkets 3Global Refurbished Surgical Imaging Market by Product & Application is Estimated to Reach $1.25 Billion by 2019 - New Research Report by MarketsandMarkets 42020 Quartz Tubing Market: Global Development & Forecasts Analysis Now at DeepResearchReports.com 2
... PALM BEACH, Fla., Jan. 3, 2012  The secret to the ... yard. Sponsored by Dr. Kenneth Beer, M.D. and Mrs. Kathy ... growth experts from The University of Pennsylvania School of Medicine ... January 29, 2012, residents of South Florida will have an ...
... 3, 2012  SuperNova Diagnostics®, Inc., a privately-held global diagnostics ... Neil J. Campbell, President and CEO, will present a ... San Francisco, CA.  Mr. Campbell,s presentation is scheduled for ... Room at the Parc 55 Wyndham Union Square Hotel. ...
... Jan. 3, 2012 Neogen Corporation has developed a new test ... lateral flow test with the fully quantitative precision of a more ... certain grains is a major concern to producers of animal feed ... for DON delivers precise results ranging from 0.3 to 6 parts ...
Cached Biology Technology:Palm Beach Residents to Learn How the Future of Regenerative Medicine Will Combat Aging 2SuperNova Diagnostics® to Present at Biotech Showcase™ 2012 During JP Morgan Healthcare Conference January 9 - 12 2Neogen Launches Fully Quantitative Lateral Flow Test for DON 2
... cap mat made from an inert polymer with ... 384 split septum caps for use ... Suitable for PCR when used in conjunction with ... Pierceable with standard pipetting equipment 384 septum ...
Packaging: package with 500 l Patent/trademark/license (electronic): (r) Registered trademark of Molecular Probes...
... Buffer is a unique alternative to ... (TRIS acetate-EDTA) electrophoresis buffers. Bionic Buffer ... rapid running times, and high-resolution band ... gel electrophoresis after dilution to working ...
... and easy method for the isolation ... mammalian tissues. Most of the isolated ... membranes. The kit contains extraction buffers ... profiling. Also included is a storage ...
Biology Products: