Navigation Links
Fish Give Clues to Human Skin Color Changes
Date:12/14/2007

A common gene helps species adapt to new environments, scientists say

FRIDAY, Dec. 14 (HealthDay News) -- Research in the tiny stickleback fish could shed light on skin color changes in humans.

A team at Stanford University School of Medicine has spotted a gene that's responsible for color differences in both species.

While it may seem that the small fish and humans have little in common, they share many similarities, noted study senior author David Kingsley, professor of developmental biology. Both the sticklebacks and humans migrated out of ancestral environments to new locations a few thousand generations ago and both developed new traits -- such as skin color changes -- to be able to live in those new settings.

Kingsley and his colleagues compared DNA from lighter and darker sticklebacks and found that the lighter fish had mutations in a gene called Kit ligand. The researchers then analyzed DNA from people with different skin colors and found that those with lighter skin also had an altered form of the Kit ligand gene.

"It is the same genetic mechanism between organisms that are very different from each other," Kingsley said in a prepared statement.

The Kit ligand gene makes a protein that plays a role in maintaining the melanocyte skin cells that control pigmentation.

While this gene isn't the only factor that determines skin color, it does seem to account for about 20 percent of the pigmentation differences between people of African and European descent, Kingsley said.

The study is published in the Dec. 14 issue of the journal Cell.

More information

The PBS Web site has an article about differences in human skin color.



-- Robert Preidt



SOURCE: Stanford University, news release, Dec. 13, 2007


'/>"/>
Copyright©2007 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Investigators uncover intriguing clues to why persistent acid reflux sometimes turns into cancer
2. Online Epidemic Gives Clues to Bird Flu Spread
3. New knock-out gene model provides molecular clues to breast cancer
4. New clues to breast cancer development in high-risk women
5. Clues to Cell Death Could Fight Disease
6. Genes Give Clues to Newborn Lung Disease
7. Mouse Study Gives Clues to Colitis
8. VivoMetrics LifeShirt Going to South Pole to Uncover Clues to High-Altitude Illness
9. Protein Gives Clues to Pancreatic Cancer
10. A longer-living, healthier mouse that could hold clues to human aging
11. Clues to ensuring anti-HIV drugs are taken in Africa
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/22/2017)... ... 22, 2017 , ... ANGLESTRONG , the new recovery management app with ... App Store and Google Play . Florida-based Sober Network, Inc., the ... industry, partnered with Angle to build ANGLESTRONG. The new recovery management app is a ...
(Date:2/22/2017)... ... February 22, 2017 , ... A product of digesting a ... derive a heart-protective benefit from eating soy foods, while others do not, a University ... are able to produce equol—a substance made by some types of “good” gut bacteria ...
(Date:2/22/2017)... ... 2017 , ... Super-Sod will attend the Athens Home Show with a brand ... shift from Super-Sod’s simple Athens Home Show booth of 2016, this year’s exhibit space ... manager Chris Roquemore constructed furniture from recycled pallet wood at the Super-Sod farm in ...
(Date:2/22/2017)... ... February 22, 2017 , ... BrightStar Care Charleston , a home ... University of South Carolina (MUSC) Center on Aging’s Senior Expo on Thursday, March ... Aging is a tremendous resource in our community. We are thrilled to participate in ...
(Date:2/22/2017)... ... February 22, 2017 , ... Apptricity® Corporation, a leading global ... management, today announced that Keppel Corporation has selected Apptricity Travel and Expense Management ... “We are excited to announce the partnership between Keppel and Apptricity for our ...
Breaking Medicine News(10 mins):
(Date:2/22/2017)... - CRH Medical Corporation (TSX: CRH) (NYSE MKT: CRHM) (the "Company"), ... fiscal year ended December 31, 2016. ... This news release should ... and management discussion and analysis for the years ended December ... and are available at www.sedar.com and on the ...
(Date:2/22/2017)... Merrimack Pharmaceuticals, Inc. (Nasdaq: MACK ) ... 2016 investor conference call and webcast at 8:30 a.m., Eastern ... will cover an update on Merrimack,s recent progress as well ... financial results. A press release detailing the information to be ... Wednesday, March 1. Investors and the general public are invited ...
(Date:2/22/2017)... 2017 Summary Provides understanding and ... and agreements entered into by the worlds leading healthcare ... Description The Global Non-Small Cell Lung Cancer Partnering ... access to partnering deals and agreements entered into by ... in partnering deals - Top deals by value ...
Breaking Medicine Technology: