Navigation Links
Biologists solve mystery of black wolves
Date:2/5/2009

o precedent for it. Moreover, for whatever reason, the transfer of the black coat-color gene from dogs to wolves and its success in the wild occurred uniquely in North America.

"Most mutations we see in dogs have been selected by humans, and we intuitively think they are unique to dogs," he said. "We don't think of short-legged wolves like dachshunds or wild wolves that look like Dalmatians. The surprise of this study is that black wolves have their black coat coloration as a gift from dogs. The products of artificial selection had added substantially to the genetic legacy of a wild species."

Scientists have thought that coat color is related to camouflage, perhaps to hide wolves from their prey or from one another.

"Apparently, natural selection has increased the frequency of black coat color dramatically in wolf populations across North America," Wayne said. "It must have adaptive value that we don't yet understand. It could be camouflage, or strengthening the immune system to combat pathogens, or it could reflect a preference to mate with individuals of a different coat color."

Does this research have implications beyond dogs and wolves?

"The underlying assumption is that genes from one species will be contained and not enter another species on a massive scale; this may not be true," Wayne said. "There may be implications for genetically modified organisms."

"This work shows how domestication can preserve and ultimately enrich the genetic legacy of the original natural populations," said Gregory Barsh, a professor of genetics at Stanford University's School of Medicine and co-author of the Science paper. "Our work is on wolves, but there are many other examples of domestic plants wheat, rice, maize, soybean and animals bison, cattle, cats where gene flow from domesticated to natural populations has been documented."

The lead authors of the paper are Tovi Anderson, a gra
'/>"/>

Contact: Stuart Wolpert
swolpert@support.ucla.edu
310-206-0511
University of California - Los Angeles
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Biologists discover link between CGG repeats in DNA and neurological disorders
2. Biologists learn structure, mechanism of powerful molecular motor in virus
3. Queens University biologists find new environmental threat in North American lakes
4. Biologists discover gene behind plant sex mystery
5. Caltech geobiologists discover unique magnetic death star fossil
6. Biologists, educators recognize excellence in evolution education
7. Caltech biologists spy on the secret inner life of a cell
8. Biologists identify genes controlling rhythmic plant growth
9. Biologists find diatom to reduce red tides toxicity
10. Model for angelman syndrome developed by University of Texas at Austin biologists
11. Caltech neurobiologists discover individuals who hear movement
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/27/2015)... NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" ... the growing mobile commerce market, announces that its Wocket® ... first week of May, 2015 and will be fulfilling ... Gino Pereira , Chief Executive Officer ... as Wocket® enters the consumer market. We would like ...
(Date:4/20/2015)... PASADENA, Calif. , April 20, 2015 ... San Gabriel Valley to implant a new miniaturized, wireless ... HF System is the first and only FDA-approved heart ... reduce hospital admissions when used by physicians to manage ... a sensor that is implanted in the pulmonary artery ...
(Date:4/14/2015)... 2015  HYPR Corp. today announced it has ... Alliance tm , an industry consortium transforming online ... share technology and collaborate to deliver open specifications ... secure and private, and easier to use. ... protects sensitive user information and eliminates the dependency ...
Breaking Biology News(10 mins):Wocket, the Smartest Wallet You Will Ever Own, Announces Shipment to Pre-order Customers 2Wocket, the Smartest Wallet You Will Ever Own, Announces Shipment to Pre-order Customers 3Huntington Memorial Hospital Becomes First in the San Gabriel Valley to Offer Patients a New Heart Failure Monitoring Solution 2Huntington Memorial Hospital Becomes First in the San Gabriel Valley to Offer Patients a New Heart Failure Monitoring Solution 3HYPR Corp. Joins the FIDO Alliance 2HYPR Corp. Joins the FIDO Alliance 3
... Bacteria that can cause serious heart disease in humans are ... could become a bigger problem in humans. Research published in ... suggests that brown rats, the biggest and most common ... Since the early 1990s, more than 20 species of ...
... kills pain by activating a set of proteins ... appetite, inflammation, and memory. The body also has ... same receptors, namely N-arachidonoyl ethanolamine (AEA) and 2-arachidonoylglycerol ... remain the focus of intense efforts to develop ...
... Nov. 21 Futronic Technology Company Limited, a,global ... the,commercial release of FS22, a high performance fingerprint ... its previously launched,FS21M (mid-range device) and FS20 (low ... fingerprint access and attendance control device.,FS22 uses a ...
Cached Biology News:Scientists discover 21st century plague 2Scripps research team defines new painkilling chemical pathway 2Futronic Launches FS22 Fingerprint Access Control Device 2
(Date:5/21/2015)... , May 21, 2015  The EveryLife Foundation ... (R-UT) and Amy Klobuchar (D-MN) ... Accelerating Cures & Treatments, or OPEN ACT. ... patient advocacy organizations, this bipartisan legislation promises to ... medicines to rare disease patients by incentivizing drug ...
(Date:5/21/2015)... W. R. Grace & Co. (NYSE: ... Germany has received good manufacturing practice (GMP) certification ... Pharmaceutical Excipient Council (IPEC) Foundation. , ... FP brand of pharmaceutical grade excipient silica gels ... Bay, Maryland (USA) and Sorocaba, Brazil locations. The ...
(Date:5/21/2015)... , May 21, 2015  CytRx Corporation (NASDAQ: ... company specializing in oncology, today announced positive updated ... with aldoxorubicin for the treatment of unresectable glioblastoma ...  The open-label, multisite trial is designed to investigate ... patients whose tumors have progressed following prior treatment ...
(Date:5/21/2015)... May 20, 2015 Research and Markets ... of the "2015 Global Survey on Flow ... The primary goal of this research ... instruments and reagents. Key information the survey seeks ... of flow cytometers, predominantly used applications for flow ...
Breaking Biology Technology:Advocates Cheer Senate Leaders for Introducing Bipartisan Bill to Increase Number of Rare Disease Treatments 2Grace European Facility Receives GMP Excipient Certification for SYLOID® FP Silica Gel 2CytRx Reports Positive Updated Phase 2 Aldoxorubicin Clinical Trial Results in Glioblastoma Multiforme (Brain Cancer) 2CytRx Reports Positive Updated Phase 2 Aldoxorubicin Clinical Trial Results in Glioblastoma Multiforme (Brain Cancer) 3CytRx Reports Positive Updated Phase 2 Aldoxorubicin Clinical Trial Results in Glioblastoma Multiforme (Brain Cancer) 4CytRx Reports Positive Updated Phase 2 Aldoxorubicin Clinical Trial Results in Glioblastoma Multiforme (Brain Cancer) 5CytRx Reports Positive Updated Phase 2 Aldoxorubicin Clinical Trial Results in Glioblastoma Multiforme (Brain Cancer) 6CytRx Reports Positive Updated Phase 2 Aldoxorubicin Clinical Trial Results in Glioblastoma Multiforme (Brain Cancer) 7Global Survey on Flow Cytometry Adoption Trends 2015 2
... relatively spherical objects in a sauce blueberries in ... of completely encapsulated berries. Relying on that concept, ... in protective coatings in the belief such encapsulations would ... Unfortunately, reactions in the nanoworld are not logical extensions ...
... On October 10, the web domain "GenerationHealth.com" was listed for auction ... expected to deliver a price reminiscent of the early dot-com days. ... expected to garner a lot of attention due to the fact ... frequently lately for various reasons, and also because the domain can ...
... AZ, Oct. 12 /PRNewswire/ - Dynamic Ventures Corporation ... Editorial Board of Standard and Poor,s ("S&P") has ... Market Access Program. Standard & Poor,s Corporation Records ... U.S. and international public companies by investors and ...
Cached Biology Technology:Nanoscopic particles resist full encapsulation, Sandia simulations show 2Dynamic Ventures Corporation's Information To Be Available Through Standard & Poor's Market Access Program 2