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:9/30/2014)... (PCE) in drinking water may increase the risk ... new study led by a Boston University School ... in the journal Environmental Health , compared ... 1,766 women in Cape Cod, Ma., where water ... early 1980s by the installation of vinyl-lined asbestos ...
(Date:9/30/2014)... in urban and farm runoff in Hawaii is causing ... , The study, published Tuesday in the peer-reviewed ... the runoff ends up in algae that the turtles ... eyes, flippers and internal organs. , Scientists at Duke ... and Atmospheric Administration (NOAA) conducted the study to better ...
(Date:9/30/2014)... Here,s some hope: A new research report published in ... , explains how scientists developed a synthetic version ... embryo development in human and mouse eggs similar to ... cell during fertilization. , "We believe that the results ... our understanding of human fertilization by providing a precise ...
Breaking Biology News(10 mins):Contaminated water linked to pregnancy complications, BU study finds 2Pollution linked to lethal sea turtle tumors 2Pollution linked to lethal sea turtle tumors 3Synthetic sperm protein raises the chance for successful in vitro fertilization 2
... Tobacco smoking by pregnant women has long been ... adverse effects on the development of a fetus. ... outcomes, including low birth weight, sudden infant death syndrome, ... and nicotine use in offspring. Despite this extensive literature, ...
... to help fertilize crops, it is vital to understand the ... Burkholderia , for example, includes dangerous disease-causing pathogens one ... but also many species that are safe and important ... good and evil be told apart? Yes, UCLA life scientists ...
... - Scientists at A*STAR,s Institute of Molecular and Cell ... sequenced and analysed the genome of the elephant shark. ... human and other vertebrate genomes revealed why the skeleton ... The findings carry potential implications for human bone disease ...
Cached Biology News:Maternal stress hormones and maternal smoking increase daughter's risk of nicotine dependence 2UCLA life scientists, colleagues differentiate microbial good and evil 2UCLA life scientists, colleagues differentiate microbial good and evil 3Elephant shark genome provides new insights into bone formation and adaptive immunity in humans 2Elephant shark genome provides new insights into bone formation and adaptive immunity in humans 3
(Date:9/30/2014)... Basel, Switzerland (PRWEB) September 30, 2014 ... advanced software solutions for drug discovery and ... the FUNGITECT consortium has chosen Genedata Selector ... next-generation sequencing (NGS) data. FUNGITECT is a ... of invasive fungal diseases via individualized anti-fungal ...
(Date:9/30/2014)... 2014 iLab Solutions announced the results ... which focuses on core facility operations, growth and ... face today. , In its 4th year running, a ... is the year-over-year decrease in the percentage of revenue ... be feeling the constraints of this trend. When asked, ...
(Date:9/30/2014)... Rainbow Scientific, Inc. (RSI), a North ... an online store to add customer convenience in ... and manufactured by Biological Industries, Inc. , Products ... Nutristem® serum-free, xeno-free reagents for human mesenchymal stem ... culture. , The online store also offers ...
(Date:9/30/2014)... September 30, 2014 The ... IACRN), a non-profit organization based in Pittsburgh, Pennsylvania, ... and Safety (ACRES), a Massachusetts non-profit charitable ... alliance agreement, setting the stage for multiple collaborative ... clinical research quality and safety through specialized nursing ...
Breaking Biology Technology:FUNGITECT Consortium Adopts Genedata Selector as Data Analysis Platform for Anti-fungal R 2FUNGITECT Consortium Adopts Genedata Selector as Data Analysis Platform for Anti-fungal R 3iLab Solutions Announces the Results of the 2014 Core Facility Benchmarking Study 2iLab Solutions Announces the Results of the 2014 Core Facility Benchmarking Study 3Rainbow Scientific, Inc. opens online store for state-of-the-art stem cell culture and cytogenetic reagents 2IACRN and ACRES to Support Clinical Research Nurses 2IACRN and ACRES to Support Clinical Research Nurses 3
... May 27, 2009 Senomyx, Inc. (Nasdaq: ... technologies to discover and develop novel flavor ingredients for ... the appointment of David L. Linemeyer, Ph.D., to the ... 20 years of experience in directing biology research programs ...
... May 27 The atherosclerosis vaccine,development program by ... EUROTRANS-BIO call. The respective project is being carried ... The aim of,atherosclerosis vaccination is to increase the ... the blood and thus reduce the occurrence of,harmful ...
... Oncothyreon Inc. (Nasdaq: ONTY ) (TSX: ONY) announced ... shares of its common stock and warrants to purchase 2,909,244 ... $11.1 million on May 26, 2009. Oncothyreon sold the shares ... one share and a warrant to purchase 0.75 shares of ...
Cached Biology Technology:SENOMYX ANNOUNCES APPOINTMENT OF DAVID L. LINEMEYER, PH.D., AS VICE PRESIDENT, BIOLOGY 2SENOMYX ANNOUNCES APPOINTMENT OF DAVID L. LINEMEYER, PH.D., AS VICE PRESIDENT, BIOLOGY 3AFFiRiS AG: Atherosclerosis Vaccine Development Receives EU Support 2AFFiRiS AG: Atherosclerosis Vaccine Development Receives EU Support 3Oncothyreon announces closing of $11.1 million registered direct financing 2
...
Chicken polyclonal to UCK2 ( Abpromise for all tested applications). Antigen: Full length protein, corresponding to amino acids 1-261 of Human UCK2 Entrez Gene ID: 7371 Swiss Protein ID: ...
... (rEK) is a highly purified preparation of ... serine protease which recognizes the identical cleavage ... has similar enzymatic activity. Novagen&'s enzyme is ... purified to yield the highest activity available, ...
Physical Form: powder Color: white Removes FLAG peptide from N-terminal and Met-N-terminal fusion proteins. Supplied with optimized enterokinase buffer....
Biology Products: