Navigation Links
Research updates 65-year-old genetic discovery

Gene variants determine which humans and which chimpanzees can taste bitter substances. For humans, this taste sensitivity may influence nutritional choices and ultimately their health, as well as behaviors, such as smoking. For chimpanzees, it provides a way to live safely in their environments by avoiding toxic plants and other harmful compounds.

Research conducted more 65 years ago by a team of scientists led by Sir Ronald Aylmer Fisher, the eminent British statistician and geneticist, concluded that this gene variant was the same in humans and chimpanzees and existed throughout time--an example of balancing selection. Their findings were published in 1939 in "Nature," one of the world's leading science journals.

A new team of researchers, including Anne Stone, an anthropological geneticist at Arizona State University, writes in the cover story of this week's "Nature" (April 13, 2006), that while the observations made by Fisher and his team were accurate, "their explanation was wrong." Instead of being an example of balancing selection, the researchers conclude that both humans and chimpanzees have gene variants but for different reasons--and is an example of convergent evolution.

It was only a few years ago, in 2003, that sensitivity to a bitter compound known as phenylthiocarbamide (PTC) was mapped in human genes.

"That gene was found to be controlling whether you can taste PTC or not," says Stone, an associate professor in ASU's School of Human Evolution and Social Change in the College of Liberal Arts and Sciences.

"We decided to look at this in chimpanzees and see if Fisher was right," she says. The "we" includes authors of the report Stephen Wooding, Michael T. Howard, Diane M. Dunn, Robert B. Weiss and Michael J. Bamshad in the Department of Human Genetics at the University of Utah; Bernd Bufe and Wolfgang Meyerhof of the German Institute of Human Nutrition Postdam-Rehbruecke; and Christina Grassi and Maribel Vazquez
'"/>

Source:Arizona State University


Page: 1 2 3

Related biology news :

1. Researchers discover way to make cells in the eye sensitive to light
2. Quantum Dots Research Leads to New Knowledge about Protein Binding in Plants
3. Researchers find how protein allows insects to detect and respond to pheromones
4. Researchers Uncover Key Step In Manufacture of Memory Protein
5. Research advances quest for HIV-1 vaccine
6. Research on Worms Yields Clues on Aging
7. Researchers reveal the infectious impact of salmon farms on wild salmon
8. Researchers identify target for cancer drugs
9. Weill Cornell Research Reveals Secrets Of Trafficking Within Cells
10. Researchers discover molecule that causes secondary stroke
11. Researchers find missing genes of ancient organism
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Research updates year old genetic discovery

(Date:10/16/2014)... a new synthesis of recent research findings to inform ... the two states. , The Ecology and Management ... A Synthesis of the Relevant Biophysical Science and Implications ... by the U.S. Forest Service,s Pacific Northwest Research Station, ... for a synthesis of the large body of scientific ...
(Date:10/16/2014)... respiratory tract infections and worldwide claims the lives ... and Ghent University have succeeded in developing a ... infection. , Xavier Saelens (VIB/UGent): "We discovered ... for the development of a novel approach to ... in numerous small children and elderly people." , ...
(Date:10/15/2014)... 2014 Sandata Technologies, LLC, an industry ... care, today announced it released a case study ... Visit Verification™ Solution (EVV™)  for Quality Care Services, ... company founded in 1996 and has five locations ... The study details the challenges facing Quality ...
Breaking Biology News(10 mins):New report synthesizes best available science on management of moist mixed-conifer forests 2New perspectives for development of an RSV vaccine 2Sandata Announces Case Study with Quality Care Services, Inc. 2
... One in eight women in the United States will receive ... is the second leading cause of cancer-related death in women. ... possible treatment for each patient. "Our research shows that ... without getting any treatment at all, other than a lumpectomy," ...
... mobile phone charger at home when you go for ... norm one day as scientists from Nanyang Technological University ... a microchip that uses 30 times less electricity while ... The technology, dubbed PCMOS (probabilistic complementary metal-oxide semiconductor) was ...
... of genetic factors associated with heart attacks has identified ... that appear to increase the risk for early-onset myocardial ... Consortium, based on information from a total of 26,000 ... Genetics and is receiving early online release. ...
Cached Biology News:New test for breast cancer will help guide treatment choices 2Singapore-US scientists first to develop revolutionary microchip that uses 30 times less energy 2Singapore-US scientists first to develop revolutionary microchip that uses 30 times less energy 3International study identifies gene variants associated with early heart attack 2International study identifies gene variants associated with early heart attack 3
(Date:10/25/2014)... 24, 2014 Research and Markets ... by Product , Research Area & by End User ... offering. In this report, the global ... research areas, and end users. The product segments of ... instruments & consumables, kits, and reagents. The subsegments of ...
(Date:10/22/2014)... NEW YORK , Oct. 22, 2014 ... growth in the in vitro diagnostic (IVD) test industry, ... Kalorama Information. The healthcare market researcher listed more than 25 ... that could be the future of IVD products. Kalorama details ... industry, The Worldwide Market for In Vitro Diagnostic ...
(Date:10/22/2014)... and BOSTON , Oct. 22, ... a leading global specialty pharmaceutical company, and Rhythm, a ... an exclusive option to acquire Rhythm,s wholly owned subsidiary, ... peptide ghrelin agonist, for the treatment of diabetic gastroparesis ... has completed a successful Phase 2 trial of relamorelin ...
(Date:10/22/2014)... (PRWEB) October 21, 2014 The North ... concerned market North America with analysis and forecast of ... 2013, and is expected to reach $623.6 million by ... 2018. , Browse through the TOC of the North ... of the in-depth analysis provided. This also provides a ...
Breaking Biology Technology:Global Epigenetics (VLA, WBA, NBA, RTA, Rotary-Wing Aircraft) Market - Forecast to 2019 2Global Epigenetics (VLA, WBA, NBA, RTA, Rotary-Wing Aircraft) Market - Forecast to 2019 3Report: Radical New IVD Test Approaches Key To Growth 2Report: Radical New IVD Test Approaches Key To Growth 3Actavis Signs Option to Acquire Rhythm Subsidiary and its GI Development Product, Relamorelin 2Actavis Signs Option to Acquire Rhythm Subsidiary and its GI Development Product, Relamorelin 3Actavis Signs Option to Acquire Rhythm Subsidiary and its GI Development Product, Relamorelin 4Actavis Signs Option to Acquire Rhythm Subsidiary and its GI Development Product, Relamorelin 5The North American crystal oscillator market is expected to reach $623.6 million by 2018 - New Report by MicroMarket Monitor 2The North American crystal oscillator market is expected to reach $623.6 million by 2018 - New Report by MicroMarket Monitor 3The North American crystal oscillator market is expected to reach $623.6 million by 2018 - New Report by MicroMarket Monitor 4
... SHANGHAI, June 16 /PRNewswire-Asia/ -- ... announced,today that its animal facility in Shanghai has passed ... Sundia management and staff are praised,for providing good facilities ... , The inspection and audit ...
... June 16 /PRNewswire-Asia/ -- Pharmaceutical company Pharmaxis,(ASX: PXS; Nasdaq: ... of its,recently completed international Phase III trial of Bronchitol in ... Cystic Fibrosis,Conference in Brest, France. , ... June by Dr Diana,Bilton of the Royal Brompton Hospital, London. ...
... , DETROIT, June 15 Business, nonprofit and ... the manufacturing sector that includes enacting pro-industry policies and ... investment, and creating new demand through innovation and globalization. ... at The National Summit in Detroit agreed that economic ...
Cached Biology Technology:Sundia's Animal Facility Passed Client and Government Inspection 2Phase 3 Cystic Fibrosis Trial Results Presented at European Conference 2Phase 3 Cystic Fibrosis Trial Results Presented at European Conference 3Phase 3 Cystic Fibrosis Trial Results Presented at European Conference 4Top CEOs Declare America's Manufacturing Sector Requires Pro-Industry Policies, Capital Management and Innovation to Maintain Economic Leadership 2Top CEOs Declare America's Manufacturing Sector Requires Pro-Industry Policies, Capital Management and Innovation to Maintain Economic Leadership 3
... CLS number is a new ... match Cornings product number. If ... order under the old Sigma-Aldrich ... service for assistance. ID clarifier: ...
... the Beacon 2000 instrument can be used ... Beacon 2000 Data Manager Software provides the ... directly from the instrument. These data can ... available spreadsheets, such as Microsoft Excel or ...
... This kit allows for quick and reproducible immunoprecipitation ... The system is more reproducible than regular IPs, ... protein A/G agarose without disrupting the agarose bed. ... and Release is reversible, and elution of the ...
... self locking design in ice/water bath ... product number, created to easily match ... availability yet, please order under the ... customer service for assistance. ID clarifier: ...
Biology Products: