Navigation Links
Ancient DNA provides clues to the evolution of social behavior

A rare Patagonian rodent known as the colonial tuco-tuco fascinates biologists because it seems to defy all odds. This threatened species has so little genetic diversity that the slightest whiff of climate change or disease should have wiped it off the face of the earth long ago. Yet the hearty gopher-like creature has not only managed to survive for thousands of years in the harsh climate of the Argentine highlands, it has evolved a complex social structure that's unique among the more than 50 closely related tuco-tuco species.

Stanford University biologist Elizabeth Hadly and her colleagues are using DNA extracted from ancient teeth-some more than 10,000 years old-to unravel the colonial tuco-tuco's mysterious past and pinpoint the cause of its low genetic diversity. The results are published in the April 20 edition of the journal PLoS Genetics.

''This advance in the analysis is fundamentally different from anything anyone has done with ancient DNA,'' says Hadly, an associate professor of biological sciences and co-author of the study. ''What we're trying to do is basically make a moving picture of their history instead of just a snapshot.''

Adopting a colonial lifestyle may have been the key to the rodent's survival, Hadly asserts, and could provide insight into the evolution of social behavior in other animals, including ants and humans.

Population crash

Named for the ''tuc-tuc-tuc'' sound of its call, the colonial tuco-tuco (Ctenomys sociabilis) lives in remote highland savannah areas of southern Argentina. Unlike the more than 50 other tuco-tuco species that live mostly solitary lives, C. sociabilis lives in colonies. Several females frequently share one burrow and in captivity are known to nurse one another's young.

Almost entirely subterranean, colonial tuco-tucos rarely leave their burrows except for brief forays to collect the grassy vegetation on which they feed. When they do leave their colonies, the
'"/>

Source:Stanford University


Page: 1 2 3 4

Related biology news :

1. Ancient olfaction protein is shared by many bugs, offering new pest control target
2. Ancient immune defense mechanism is no match for HIV-1
3. Ancient DNA helps clarify the origins of two extinct New World horse species
4. Researchers Discover Ancient Origins Of Tuberculosis-causing Bacteria
5. Ancient DNA confirms single origin of Malagasy primates
6. Ancient anthropoid origins discovered in Africa
7. Ancient trans-Atlantic swarm brought locusts to the New World
8. Ancient humans brought bottle gourds to the Americas from Asia
9. Ancient DNA helps UF researchers unearth potential hemophilia therapy
10. Ancient ants arose 140-168 million years ago
11. Ancient fossil DNA found preserved in crystal
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Ancient DNA provides clues the evolution social behavior

(Date:8/18/2015)... N.J. , Aug. 18, 2015 /PRNewswire/ ... a key contributor to the Submission Content ... by IRISS, a non-profit forum. Dedicated to the ... provides a neutral platform for industry, vendors, ... share information and work towards a standard ...
(Date:8/12/2015)... SPRINGS, Florida , August 12, 2015 ... the pace of mobile payment innovation and advanced biometrics ... to replace the way consumers rely on using their ... ahead with reinventing the future for payment services led ... (NASDAQ: NXTD ), :  Google, Inc. (NASDAQ: ...
(Date:8/10/2015)... Germany , August 10, 2015 ... in Eye Tracking Technology for more than two decades, ... Platform for integration into all consumer display formats. The ... seamless integration of eye tracking into consumer tablets, laptops, ... reality smart glasses. Omnivision,s leading sensor technology contributes to ...
Breaking Biology News(10 mins):Navitas, a Key Contributor in IRISS Forum Webinar 2Navitas, a Key Contributor in IRISS Forum Webinar 3Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 2Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 3Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 4Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 5Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 6SMI Completes OEM Eye Tracking Platform to Cover All Consumer Displays 2SMI Completes OEM Eye Tracking Platform to Cover All Consumer Displays 3
... 2009 The Center for Stem Cell & Regenerative Medicine ... Clinic (CC), University Hospitals (UH), and Athersys, Inc. has ... the Research Commercialization Program. The funding will help support ... four emerging and three pilot projects. This funding will ...
... scientists from Europe and China have gathered in Barcelona this ... research projects using data from ESA and Chinese Earth observation ... and the Ministry of Science and Technology (MOST) of China ... monitor and understand environmental phenomena in China. ,The symposium, held ...
... Although every cell in the body carries the genes ... small proportion of stem cells mature into those important immune-system ... Health and his colleagues have identified two "molecular motors" that ... cells. They published their findings June 19 in the online ...
Cached Biology News:CWRU receives $5 million from Ohio Third Frontier Commission 2CWRU receives $5 million from Ohio Third Frontier Commission 3Europe and China watching Earth together 2Pushmi-pullyu of B-cell development discovered 2
(Date:8/27/2015)... , Aug. 27, 2015 HUYA Bioscience ... meeting of the Japan Society of HTLV-1, held this ... Auditorium. The purpose of the Society is to promote ... the development of medical technology and research related to ... welfare. "HUYA is proud to support this ...
(Date:8/27/2015)... ... 2015 , ... METTLER TOLEDO's web-based EasyFinder™ tool ... to a manageable shortlist of bench and floor scales and terminals. Specifying a ... with the customer’s industry and application. , Side-by-side product comparisons and an ...
(Date:8/26/2015)... ... August 26, 2015 , ... ... today that a second US laboratory is to open in Manhattan, Kansas in ... continued partnership and long-term growth of research and development through collaboration with researchers ...
(Date:8/26/2015)... , ... August 26, 2015 , ... ... increasing its investment in the development and manufacture of highly valued cardiac markers ... company’s scientific team's extensive expertise with protein chemistry has led to the development ...
Breaking Biology Technology:HUYA Bioscience International Sponsors Japan Society Of HTLV-1 Annual Meeting 2HUYA Bioscience International Sponsors Japan Society Of HTLV-1 Annual Meeting 3HUYA Bioscience International Sponsors Japan Society Of HTLV-1 Annual Meeting 4METTLER TOLEDO Updates Online Scale Selection Tool 2MediVet Biologics Animal Health Secures Additional Laboratory Facility in Manhattan, Kansas 2MediVet Biologics Animal Health Secures Additional Laboratory Facility in Manhattan, Kansas 3Lee Biosolutions Announces Increased Investment in the Development and Manufacturing of Biomarkers Used in Early Detection Of Heart Disease 2
... ... soil fertility and the critical agricultural issues that face Africa, has been developed and ... ... -- AfricaFertilizer.org , a global forum to disseminate and exchange information on fertilizers, ...
... ... , ... , , , ... ...
... ... ... ... ...
Cached Biology Technology:AfricaFertilizer.org to Increase Agricultural Productivity and Knowledge Across the African Continent 2AfricaFertilizer.org to Increase Agricultural Productivity and Knowledge Across the African Continent 3AfricaFertilizer.org to Increase Agricultural Productivity and Knowledge Across the African Continent 4Protalix Announces Successful GMP Manufacturing Audit by Israel's Ministry of Health 2Protalix Announces Successful GMP Manufacturing Audit by Israel's Ministry of Health 3Protalix Announces Successful GMP Manufacturing Audit by Israel's Ministry of Health 4Protalix Announces Successful GMP Manufacturing Audit by Israel's Ministry of Health 5BioMS Medical reports Spectral receives FDA approval to initiate pivotal trial and closes financing for $19.5 million 2BioMS Medical reports Spectral receives FDA approval to initiate pivotal trial and closes financing for $19.5 million 3BioMS Medical reports Spectral receives FDA approval to initiate pivotal trial and closes financing for $19.5 million 4
TCP-1 alpha (H-110)...
Request Info...
... Stem Cell (hESC) Starter Kit brings together many ... culturing hESCs as soon as possible. This set ... training courses around the world, including those supported ... been extensively tested using GIBCO's quality process and ...
Recombinant Feline IFN-alpha...
Biology Products: