Navigation Links
Endangered horse has ancient origins and high genetic diversity, new study finds
Date:9/7/2011

An endangered species of horse -- known as Przewalski's horse -- is much more distantly related to the domestic horse than researchers had previously hypothesized, reports a team of investigators led by Kateryna Makova, a Penn State University associate professor of biology. The scientists tested the portion of the genome passed exclusively from mother to offspring -- the mitochondrial DNA -- of four Przewalski's horse lineages and compared the data to DNA from the domestic horse (Equus caballus). They concluded that, although previous scientists had assumed that Przewalski's horse and the domestic horse had diverged around the time that horses were domesticated -- about 6,000 to 10,000 years ago -- the real time of the two species' divergence from one another is much more ancient. The data gleaned from the study also suggest that present-day Przewalski's horses have a much more diverse gene pool than previously hypothesized. The new study's findings could be used to inform conservation efforts to save the endangered horse species, of which only 2,000 individuals remain in parts of China and Mongolia, and in wildlife reserves in California and the Ukraine. The paper will be published in the journal Genome Biology and Evolution.

Przewalski's horse -- a stocky, short-maned species named after a Russian explorer who first encountered the animal in the wild -- became endangered during the middle of the last century when the species experienced a population bottleneck -- an evolutionary event in which many or most members of a population or a species die. "Sadly, this bottleneck was the result of human activity," Makova explained. "Przewalski's horses were hunted down for food, and their natural habitat, the steppes, were converted into farm land so the horses basically had nowhere to live and breed. By the late 1950s, only 12 individual horses remained." Makova said that because conservationists have made noble efforts to rescue this dwindling popu
'/>"/>

Contact: Barbara Kennedy
science@psu.edu
814-863-4682
Penn State
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. In a last stronghold for endangered chimpanzees, survey finds drastic decline
2. Study finds high mortality of endangered loggerhead sea turtles in Baja California
3. Scientists call for protected swimways for the endangered leatherback sea turtle
4. Endangered sawfish focus of national collection and recovery efforts
5. Dealing with taxonomic uncertainty for threatened and endangered species
6. Australias most endangered snake might need burning
7. Jeepers creepers: Climate change threatens endangered honeycreepers
8. T-STAR grant funds genetic studies on shrimp and papaya and endangered cycad rescue
9. Working to conserve endangered Playboy bunnies
10. Humans lend a hand to critically endangered waterbird
11. Biologists rediscover endangered frog population
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Endangered horse has ancient origins and high genetic diversity, new study finds
(Date:9/17/2014)... Calif. (Sept. 17, 2014) A rare genetic disorder known ... to a recent joint investigation by researchers at San ... Diego. In addition to suggesting better treatment options for ... clues into the genetic underpinnings of autism., Jacobsen syndrome ... National Institutes of Health. It occurs in a person ...
(Date:9/17/2014)... and their environmental impact recently scored a major win. ... on the bags, and Governor Jerry Brown is expected ... not yielding without a fight, according to an article ... newsmagazine of the American Chemical Society. , Alexander Tullo, ... campaign logged its first small victory in 1990 when ...
(Date:9/17/2014)... in Biomedical Informatics at IMIM (Hospital del Mar Medical ... (UPC) have recently published a study in eLife ... important role in the evolution of new proteins, some ... be discovered., Ribosomes produce proteins from the instructions found ... human genome is RNA containing information for the synthesis ...
Breaking Biology News(10 mins):A link between Jacobsen syndrome and autism 2Parts of genome without a known function may play a key role in the birth of new proteins 2
... African sanctuaries carry drug-resistant, human-associated strains of the bacteria ... chimpanzees could spread to endangered wild ape populations if ... study shows. The study by veterinarians, microbiologists and ... sequencing technology of bacterial genomes used in hospitals to ...
... forget-me-nots have been added to Flora of New Zealand . ... Island during an expedition led by Dr. Carlos A. Lehnebach. These ... the open access journal PhytoKeys . The expedition ... at the Museum of New Zealand Te Papa Tongarew a ...
... faces far greater change and risk of large-scale extinctions than ... the world,s leading marine scientists has warned. The researchers ... UK have compared events which drove massive extinctions of sea ... taking place in the seas and oceans globally today. ...
Cached Biology News:Sanctuary chimps show high rates of drug-resistant staph 2No ordinary forget-me-nots 2Sea life 'facing major shock' 2Sea life 'facing major shock' 3
(Date:9/18/2014)... Sept. 18, 2014   Sigma-Aldrich Corporation ... has entered into a new gene editing partnership ... Vector Core. Under the partnership, Sigma-Aldrich will provide ... design consultation, and dedicated gene editing bioinformaticians. ... editing-based research at the U-M Medical School. One ...
(Date:9/18/2014)... 2014 SeqLL Inc., the owner ... announced today the closing of a $1M Series-A ... Genomic Diagnostic Technologies, will increase the power of ... Founded in March 2013 by Daniel Jones, a ... Helicos BioSciences, SeqLL has continued to offer Helicos’ ...
(Date:9/18/2014)... lab can be pretty expensive. Now a team led ... an open-source library of designs that will let scientists ... equipment: the syringe pump. , Syringe pumps are used ... delivery or mixing chemicals in a reaction. They can ... Joshua Pearce and his team of Michigan Tech students ...
(Date:9/18/2014)... a new microscopy technology that allows them to ... resolution. , Dubbed "Complementation Activated Light Microscopy" (CALM), ... an order of magnitude finer than conventional optical ... biomolecules at the nanometer scale. , In a ... Communications , the researchers behind CALM used it ...
Breaking Biology Technology:Sigma-Aldrich, University of Michigan Medical School Establish CRISPR Core Lab Partnership 2Sigma-Aldrich, University of Michigan Medical School Establish CRISPR Core Lab Partnership 3Sigma-Aldrich, University of Michigan Medical School Establish CRISPR Core Lab Partnership 4SeqLL Closes Series-A Funding Round for Expansion of Single Molecule Sequencing 2Doing science just got cheaper -- and faster 2Scientists pioneer microscopy technique that yields fresh data on muscular dystrophy 2
... to Screen Donated Blood for Hepatitis B, as well ... and Semi-Automated Instrument Systems -, SAN DIEGO, Aug. ... that the US Food and Drug Administration,(FDA) has approved ... to screen donated blood for the hepatitis B,virus (HBV). ...
... Stock Exchange Symbol: MS, - Milestone triggers ... - EDMONTON, Aug. 13 /PRNewswire-FirstCall/ - BioMS ... treatment of multiple sclerosis (MS), today,announced that the ... trial has conducted the scheduled interim analysis of ...
... Mentice, Inc. and MATC have,forged a relationship that ... multiple,and mutually beneficial projects to further advance the ... throughout North America., Mentice,s Procedicus VIST Simulator ... physician to gain exposure to routine,and sophisticated procedures. ...
Cached Biology Technology:FDA Grants Full Approval of PROCLEIX(R) ULTRIO(R) Blood Screening Assay 2FDA Grants Full Approval of PROCLEIX(R) ULTRIO(R) Blood Screening Assay 3FDA Grants Full Approval of PROCLEIX(R) ULTRIO(R) Blood Screening Assay 4BioMS Medical announces positive interim analysis on phase III trial of dirucotide (MBP8298) for multiple sclerosis 2BioMS Medical announces positive interim analysis on phase III trial of dirucotide (MBP8298) for multiple sclerosis 3BioMS Medical announces positive interim analysis on phase III trial of dirucotide (MBP8298) for multiple sclerosis 4Mentice, Inc. and the Milwaukee Area Technical College (MATC) Announce Their Partnership in the Area of Procedural Medical Simulation 2
... an inhibitor of caspase-3/7 ... of inhibitor required to ... be determined empirically for ... inhibitor is sufficient to ...
...
SNARE associated protein snapin, clone MGC:2717...
Human OSCAR MAb (Clone 259501)...
Biology Products: