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:7/11/2014)... Shenzhen, July 10, 2014---A team of researchers from The ... have identified a gene of wild soybean linked to ... to grow in saline soil. This study published online ... to unveil novel genomic information for crop improvement. , ... to domestication and human selection, cultivated soybeans have less ...
(Date:7/11/2014)... often develop relationships with other group members to reduce ... chacma baboons the strategy for grooming activities shows a ... published in the scientific journal Biology Letters . ... is not practiced without ulterior motives. To be groomed ... individual, while grooming another individual can provide access to ...
(Date:7/11/2014)... from Ume University, Sweden, have explored two different ... reaction sequence leading to the formation of oxygen ... published in the scientific journal Nature Communications ... present day synthetic catalysts for water oxidation, which ... for the direct storage of solar energy in ...
Breaking Biology News(10 mins):BGI reports a novel gene for salt tolerance found in wild soybean 2Baboons groom early in the day to get benefits later 2Molecular snapshots of oxygen formation in photosynthesis 2
... 25, 2012  ChromaDex Corporation (OTCBB: CDXC), an innovative ... and ingredients to the dietary supplement, food & ... its BluScience ( www.bluscience.com ) line ... McKesson to approximately 4,000 independent drugstores and pharmacies. ...
... five leading causes of death. And yet, despite ... treatment for most cancers. In addition, disappointing results ... the need for alternative methods. Mathematical ... of tumors in terms of differential equations and ...
... Research!America,s Board chair, former Congressman John Edward Porter (R-IL), ... in basic research. , "America,s leadership is at ... in discovery and development," said Porter. "We could ... Europe integrate science and technology into economic growth while ...
Cached Biology News:ChromaDex® Expands National Launch of its BluScience™ Line of Dietary Supplements Through McKesson 2ChromaDex® Expands National Launch of its BluScience™ Line of Dietary Supplements Through McKesson 3ChromaDex® Expands National Launch of its BluScience™ Line of Dietary Supplements Through McKesson 4Aiding cancer therapy by mathematically modeling tumor-immune interactions 2Aiding cancer therapy by mathematically modeling tumor-immune interactions 3State of the Union speech: Promising outlook for research and innovation 2
(Date:7/11/2014)... 2014 /CNW/ - Sunovion Pharmaceuticals Canada Inc. (Sunovion) today ... acetate) for use as a once-daily adjunctive therapy for ... who are not satisfactorily controlled with conventional therapy.  APTIOM ... under 18 years of age. Epilepsy ... according to Epilepsy Canada, it affects 0.6% of the ...
(Date:7/10/2014)... 2014 Deep Knowledge Ventures last ... on ‘Commercialising Longevity Research’ and welcomed a host ... London Bioscience Innovation Center for the event, organised ... Analytics Ltd. The meeting highlighted the need for ... for age-related disease, as well as the crucial ...
(Date:7/10/2014)... OMICS Group’s 5th International conference and ... 2014 at Double Tree by Hilton Beijing, China is ... Analytical & Bioanalytical research methods only to facilitate improved ... occasion, Dr. Srinubabu Gedela, MD of OMICS Group Inc ... remarkable one in bringing a unique and international mix ...
(Date:7/10/2014)... , July 10, 2014  Kainos Capital, a ... brands, today announced that it has acquired the Slim-Fast ... in the business. Terms of the transaction were not ... and meal replacement business that markets ready-to-drink shakes, powders, ... North America and in the ...
Breaking Biology Technology:Sunovion Pharmaceuticals Canada Inc. Announces Health Canada Approval of APTIOM(TM) (eslicarbazepine acetate) as a Once-Daily Adjunctive Treatment for Partial-Onset Seizures in Patients with Epilepsy 2Sunovion Pharmaceuticals Canada Inc. Announces Health Canada Approval of APTIOM(TM) (eslicarbazepine acetate) as a Once-Daily Adjunctive Treatment for Partial-Onset Seizures in Patients with Epilepsy 3Sunovion Pharmaceuticals Canada Inc. Announces Health Canada Approval of APTIOM(TM) (eslicarbazepine acetate) as a Once-Daily Adjunctive Treatment for Partial-Onset Seizures in Patients with Epilepsy 4DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 2DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 3DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 4DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 5DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 6A Critical Review of Analytical Techniques for Improved Living Standards 2A Critical Review of Analytical Techniques for Improved Living Standards 3A Critical Review of Analytical Techniques for Improved Living Standards 4Kainos Capital Acquires Slim-Fast From Unilever 2
... Pharmaceuticals, Inc. (Nasdaq: MAPP ) today announced financial ... The net income for the first quarter ended March ... of $14.1 million during the same period in 2010. Net ... related primarily to the $34.2 million in collaboration revenue recognized ...
... 2011 Silence Therapeutics plc (AIM: ... of patent 4,705,370, titled "Further Novel Forms of ...  The issued patent covers aspects of Silence,s platform ... 2,-O-Methyl structures known as AtuRNAi.  Silence,s AtuRNAi molecules ...
... May 2, 2011 Dendreon Corporation (Nasdaq: DNDN ) ... Revenue for the quarter ended March 31, 2011 was $28.1 million ... The GAAP net loss for the quarter ended March ... $125.7 million, or $0.96 per share for the quarter ended March ...
Cached Biology Technology:MAP Pharmaceuticals Reports First Quarter of 2011 Financial Results 2MAP Pharmaceuticals Reports First Quarter of 2011 Financial Results 3MAP Pharmaceuticals Reports First Quarter of 2011 Financial Results 4MAP Pharmaceuticals Reports First Quarter of 2011 Financial Results 5Silence Therapeutics Issued Japanese Patent Covering its Core RNA Interference (RNAi) Technology 2Silence Therapeutics Issued Japanese Patent Covering its Core RNA Interference (RNAi) Technology 3Dendreon Reports First Quarter 2011 Financial Results 2Dendreon Reports First Quarter 2011 Financial Results 3Dendreon Reports First Quarter 2011 Financial Results 4Dendreon Reports First Quarter 2011 Financial Results 5
Request Info...
Incorporating the innovative InGaAs detection system the Cary 6000i is the worlds most advanced UV-Vis-NIR spectrophotometer delivering superior signal to noise performance and outstanding sensitivit...
The pYES2 vector is designed for native expression of your protein of interest in S. cerevisiae. It contains the URA3 gene for selection in yeast and 2 origin for high-copy maintenance....
Activating Agents, 7-azabenzotriazol-1-yloxy-tris-(pyrrolidino)phosphonium hexafluorophosphate...
Biology Products: