Navigation Links
The mouflons of the Kerguelen archipelago

n the bird populations. Noticing that the mouflon population appeared to be thriving, he suggested to Réale that this population could be studied from a genetic viewpoint. Dave Coltman, a professor at the University of Alberta and a specialist in ungulate genetics, agreed to perform the analyses of the genetic material.

Combining their efforts, the researchers used hair, horns and tissue to reconstitute the evolution of the genetic diversity of the mouflon population from 1958 to 2003. Through the contribution of Jean-Louis Chapuis, Denis Réale had access to samples from populations living on the Islands between 1988 and 1996. For the missing years, the researchers appealed to the hunters who wintered there. “We got the missing DNA samples from hunting trophies and managed to go all the way back to the son of the founders,” said Denis Réale with a smile. “We were even able to obtain genetic material from the population of origin from the Vincennes Zoo. “We took the DNA from these samples, and looked at specific genetic sites,“ explained Renaud Kaeuffer. “We expected that the genetic diversity of this population of mouflons would be very homogeneous, and that this genetic diversity would decline over time. Instead, we observed the opposite.”

The effect of natural selection

diversity to be attributable to genetic mutation, and the Islands are much too isolated to have undergone migrations. “This variety can be explained by elimination, over the generations, of individuals with low genetic diversity. In small isolated populations, related individuals are likely to reproduce amongst themselves, resulting in inbreeding and homozygotes. The genetic variety of the population becomes impoverished and its evolutionary potential decreases. Furthermore, consanguinity is known to produce genetic diseases. The most heterozygous individuals are better able to resist these diseases,” explains Renaud Kaeuffer. The researchers stress the point th
'"/>

Source:Université du Québec à Montréal


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. Researchers reveal the infectious impact of salmon farms on wild salmon
5. Researchers identify target for cancer drugs
6. Researchers discover molecule that causes secondary stroke
7. Researchers find missing genes of ancient organism
8. Researchers trace evolution to relatively simple genetic changes
9. Researchers add new tool to tumor-treatment arsenal
10. UF Researchers Map Bacterial Proteins That Cause Tooth Loss
11. VCU Researchers Identify Networks Of Genes Responding To Alcohol In The Brain
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: The mouflons the Kerguelen archipelago

(Date:11/21/2014)... -- C-Labs LLC, a leading provider of remote and ... announced the appointment of John Traynor to ... advisor to the firm, Mr. Traynor will now oversee ... out of the C-Labs office in Redmond, ... , Chief Executive Officer. Photo - ...
(Date:11/18/2014)... , Nov. 17, 2014   ... and EMC collaborate to develop The Partners Data ... , The Partners Data Lake will allow researcher ... improve diagnostics, treatment and the lives of patients ... research and clinical activities across the Partners system, ...
(Date:11/15/2014)... 2014  While we may still be a few years ... "Star Trek" to gain instant access to all that ailed ... smartphones and tablets for monitoring and measuring our health are ... may seem a tad Orwellian to some, but a new ... these technological opportunities into their healthcare regime. These ...
Breaking Biology News(10 mins):C-Labs Names Former Microsoft and Bsquare Executive as Chief Operating Officer 2Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 2Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 3Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 4Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 5Americans May Be Ready for a Brave New World of Healthcare 2Americans May Be Ready for a Brave New World of Healthcare 3Americans May Be Ready for a Brave New World of Healthcare 4
... at the Kimmel Cancer Center at Jefferson (KCC) (insert ... developed potentially game-changing diagnostic and prognostic genetic tests shown ... clinically-relevant cancers. The team, led by ... the KCC and the Chair of the Department ...
... a $480,000 gift from the Emily Landecker Foundation. The ... Astrobiology, which will support graduate students in the School ... astrobiology. The fellowship is named in honor of Ferris, ... a senior research professor, and a member of the ...
... of two University of California, Berkeley, scientists who are part ... complete genome sequence. "This genome has revolutionized our studies," ... cell biology who lobbied for inclusion of the leech in ... animals in order to learn what they have in common ...
Cached Biology News:Game changing diagnostic & prognostic prostate cancer genetic tests revealed by Jefferson 2Game changing diagnostic & prognostic prostate cancer genetic tests revealed by Jefferson 3Rensselaer awarded gift to establish fellowship in astrobiology 2What do leeches, limpets and worms have in common? Now, a sequenced genome 2What do leeches, limpets and worms have in common? Now, a sequenced genome 3
(Date:12/17/2014)... December 17, 2014 Ipsen Biopharmaceuticals, ... IPN; ADR: IPSEY), today announced that ... as Somatuline®) was approved by the U.S. Food ... gastroenteropancreatic neuroendocrine tumors (GEP-NETs) in adult patients with ... metastatic disease to improve progression-free survival (PFS). , ...
(Date:12/17/2014)... 2014 Audacity, a leading California-based health ... of the Huntsworth Health Group, is proud to announce ... In her role, Gonzales will serve as Senior Vice ... honored to welcome a talent of Jamie’s caliber to ... Fraikin. “She is a proven healthcare innovation leader and ...
(Date:12/17/2014)... Dec. 17, 2014   Synageva BioPharma Corp. ... therapeutic products for rare disorders, announced today its presentation ... in San Francisco, CA. ... Executive Officer, will present on Monday, January 12, 2015, ... will be webcast live and may be accessed from ...
(Date:12/15/2014)... Agritech Limited (NASDAQ GS: SEED) (" Origin ", or the ... China , today announced that the Company ... 30, 2014, before the market opens on Thursday, January 8, ... January 8, 2015, at 8:00 a.m. ET / 9:00 p.m. ... To participate in the call, please dial +1-888-346-8982 in ...
Breaking Biology Technology:Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 2Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 3Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 4Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 5Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 6Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 7Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 8Audacity Welcomes Healthcare Communications Expert Jamie Gonzales as Senior Vice President of Client Services 2Origin Agritech Limited to Announce Fiscal 2014 Annual Financial Results on January 8th, 2015 2Origin Agritech Limited to Announce Fiscal 2014 Annual Financial Results on January 8th, 2015 3
... CALGARY, June 4 /PRNewswire-FirstCall/ - SemBioSys Genetics Inc.,(TSX:SBS), ... for metabolic and cardiovascular diseases, today announced that,Andrew ... present a corporate,update at the Needham & Company, ... presentation is scheduled on Wednesday,June 11 at 2:30 ...
... In a plan designed to develop,educational opportunities ... Tiger Woods Learning Center (TWLC) are collaborating to ... report by the National,Research Council studied the declining ... likely to have increased scientific interests if they ...
... Medical Corporation,(OTC Bulletin Board: CONX), a worldwide developer ... AspirinWorks(R) Test at the,American Diabetes Association,s 68th Scientific ... 7 - 9, 2008, at the Moscone Convention,Center ... first time the AspirinWorks test will be exhibited ...
Cached Biology Technology:LI-COR(R) Biosciences and Tiger Woods Learning Center Collaborate to Develop High School Curriculum in Genetics 2Corgenix to Exhibit AspirinWorks(R) Test at ADA 2008 Meeting in San Francisco 2Corgenix to Exhibit AspirinWorks(R) Test at ADA 2008 Meeting in San Francisco 3
... biomarker discovery projects require screening through ... distinguish clinically relevant data from normal ... Manager is now available to help ... and data flood inherent to biomarker ...
This free-standing laminar flow hood provides a vertical flow of HEPA-filtered air to create a clean processing area. It includes a fluorescent light and motorized sliding shield. Options include wor...
This modular laminar flow hood forces air through a 99.99% efficient HEPA filter to create a clean processing area. Configurations are available with vertical or horizontal flow; options include a wo...
... provider of X-ray crystallography services for ... services to its pharmaceutical and biotechnology ... of drug-like fragments to the active ... allowing scientists to develop novel, high-affinity ...
Biology Products: