Featured Research

from universities, journals, and other organizations

Variation In Vole Gene Is Bellwether For Behavior

Date:
July 8, 2005
Source:
National Science Foundation
Summary:
By studying small rodents called voles, researchers have discovered that slight variations in a DNA region once deemed "junk" actually predict social behavior and parental care giving in males. The differences in the DNA code, which show up over only a few generations by mutation, directly affect how, when and where the protein receptor for the hormone vasopressin presents itself in the brain.

Random changes that alter the length of microsatellite DNA near the gene for the vasopressin receptor affect social behavior in male voles. A longer microsatellite region resulted in more bonding and care giving.
Credit: Nicolle Rager Fuller, National Science Foundation

By studying small rodents called voles, researchers have discovered that slight variations in a DNA region once deemed "junk" actually predict social behavior and parental care giving in males. The differences in the DNA code, which show up over only a few generations by mutation, directly affect how, when and where the protein receptor for the hormone vasopressin presents itself in the brain.

Related Articles


According to Diane Witt, the National Science Foundation program manager for this work, "These studies are particularly important because they implicate key players and possible mechanisms underlying the evolution of species-specific social organization."

This research, published in the June 10 issue of the journal Science, was performed at the Yerkes National Primate Research Center of Emory University and the Atlanta-based Center for Behavioral Neuroscience by researchers Larry Young and Elizabeth Hammock.

Microsatellites--5 to 5,000 repeated copies of identical short DNA sequences scattered throughout genomes--were termed "non-functional," until now. Young and Hammock studied one particular microsatellite in several species of voles, eventually demonstrating that microsatellite length drastically affects complex social behaviors such as bonding and parenting.

"These findings suggest that these unstable genetic elements significantly contribute to the individual differences in social personality that we see in animals and humans," said Young.

The scientists extended the microsatellite investigation to primates by reviewing publicly available genome data. They discovered this same region was very similar in humans and bonobos. Bonobos, or pygmy chimpanzees, are known for their empathy and strong social bonds. In contrast, the microsatellite of the less-empathetic, more-aggressive common chimpanzee differed from humans and bonobos.

According to NSF's Witt, random mutations that result in variable lengths of DNA in microsatellite regions may represent unique opportunities for the expression of genetic adaptations that lead to behavioral diversity in a species.


Story Source:

The above story is based on materials provided by National Science Foundation. Note: Materials may be edited for content and length.


Cite This Page:

National Science Foundation. "Variation In Vole Gene Is Bellwether For Behavior." ScienceDaily. ScienceDaily, 8 July 2005. <www.sciencedaily.com/releases/2005/07/050707211627.htm>.
National Science Foundation. (2005, July 8). Variation In Vole Gene Is Bellwether For Behavior. ScienceDaily. Retrieved April 19, 2015 from www.sciencedaily.com/releases/2005/07/050707211627.htm
National Science Foundation. "Variation In Vole Gene Is Bellwether For Behavior." ScienceDaily. www.sciencedaily.com/releases/2005/07/050707211627.htm (accessed April 19, 2015).

Share This


More From ScienceDaily



More Plants & Animals News

Sunday, April 19, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Un-Bee-Lievable: Bees on the Loose After Washington Truck Crash

Un-Bee-Lievable: Bees on the Loose After Washington Truck Crash

Reuters - US Online Video (Apr. 17, 2015) A truck carrying honey bees overturns near Lynnwood, Washington, spreading boxes of live bees across the highway. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Our Love Of Puppy Dog Eyes Explained By Science

Our Love Of Puppy Dog Eyes Explained By Science

Newsy (Apr. 17, 2015) Researchers found a spike in oxytocin occurs in both humans and dogs when they gaze into each other&apos;s eyes. Video provided by Newsy
Powered by NewsLook.com
Dog Flu Spreading in Midwestern States

Dog Flu Spreading in Midwestern States

AP (Apr. 17, 2015) Dog flu is spreading in several Midwestern states. Dog daycare centers and veterinary offices are taking precautions. (April 17) Video provided by AP
Powered by NewsLook.com
Raw: Rare Whale Spotted in Gulf of Mexico

Raw: Rare Whale Spotted in Gulf of Mexico

AP (Apr. 17, 2015) Researchers from the E/V Nautilus had quite a surprise Tuesday, when a curious sperm whale swam around their remotely operated vehicle in the Gulf of Mexico. Cameras captured the encounter. (April 17) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins