Navigation Links
When mice choose mates, experience counts

Choosing a mate is a big decision. And, at least for mice, it's one that is best made with input from one's peers.

In a series of experiments designed help scientists understand the brain chemicals that guide mate selection, Pfaff and his colleagues exposed female mice to odors of either a male mouse alone or a male mouse with a female. The females consistently preferred the scent of males linked to other females.

"Our data suggest that female mice may use, or even copy, the interests of other females based on olfactory cues," says Pfaff, who is head of the Laboratory of Neurobiology and Behavior. "It could also be seen as a female trusting the mate choice of another female."

That one female's choice of mate could influence the choices of other females is well documented in birds and fish, but had not been documented for any mammalian species. Pfaff says that the female mice's mate preference was so strong that they even preferred the combined male/female scent when it was tainted with the scent of infectious parasites, opting for that over the scent of a healthy lone male.

"Male odors can provide female mice with information on their quality, condition, health and suitability as a potential mate," says Pfaff. "This type of 'public information' uses cues inadvertently provided by an individual, such as odor, which others observe use to make decisions such as mate choice, food location, or presence of danger. Specifically in birds and fish, 'public information' has been shown play a role in when and what to eat and with whom to mate with, but its use in mate choice has not been seen in mammals."

Pfaff, who is interested in how brain chemicals affect behavior, says the decisions made by the female mice hinge on the presence of oxytocin, a neurotransmitter associated, in humans, with bonding, trust and sexual attraction. When the gene for oxytocin was missing, female mice no longer preferentially chose male odors paired with other female odors, and they did not avoid the odors of infected males, though other tests showed that their olfactory system was perfectly intact.

"Our research shows that the oxytocin gene is involved in the processing and integration of inadvertent social information used in directing mate choice of female mice," says Pfaff. "Of course, we don't know if it works the same way in humans. But many have speculated that social influences do play a role in how we choose our friends and partners."


'"/>

Source:Rockefeller University


Related biology news :

1. Female pronghorns choose mate based on substance as well as show
2. T for two: Scientists show how immune system chooses best way to fight infection
3. Many couples choose to donate surplus embryos for stem cell research
4. Genes and biomarkers that allow doctors to choose the right therapy for the right patient
5. Why do oysters choose to live where they could be eaten?
6. Older female fish prefer imperfect male mates, study finds
7. Penguin chicks exposed to human visitors experience spike in stress hormone
8. Virtual animal shelters ?How the Internet is transforming the experience of pet adoptions
9. Past experience of pheromones induces dominant courtship behavior in fruit flies
10. Brain differences could explain why males and females experience pain relief differently
11. Just the expectation of a mirthful laughter experience boosts endorphins 27 percent, HGH 87 percent
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/10/2016)... , February 10, 2016 ... According to 2016 iris recognition market report, ... recognition is more widely accepted for border ... both fingerprint and iris recognition technology in ... to avoid purchasing two individual biometrics devices. ...
(Date:2/9/2016)... Aware, Inc. (NASDAQ: AWRE ), a leading supplier ... fourth quarter and year ended December 31, 2015.  ... of 2015 was $6.9 million, an increase of 61% compared to ... the fourth quarter of 2015 was $2.6 million compared to $0.2 ... --> --> Higher revenue and operating income in ...
(Date:2/9/2016)... , Feb. 9, 2016 Vigilant Solutions announces today ... reader (LPR) to develop a lead in a difficult homicide ... LPR data to locate the suspect vehicle. Due to the ... case have been omitted at the agency,s request. ... agency explains, "Our victim was found deceased at an intersection ...
Breaking Biology News(10 mins):
(Date:2/10/2016)... ... 2016 , ... LATHAM, NEW YORK... Marktech Optoelectronics will feature their ... in San Francisco’s Moscone Center from February 16-18, 2016, and at the healthcare-focused BiOS ... InGaAs PIN diode standard packages feature a TO-46 metal can with active areas of ...
(Date:2/10/2016)... ... February 10, 2016 , ... SonaCare Medical, LLC reports ... program, Sonalink™ remote monitoring. The inaugural launch of this new technology occurred over ... Dr. Samuel Peretsman to a HIFU technical expert at SonaCare Medical headquarters. ...
(Date:2/10/2016)... ... February 10, 2016 , ... ... a research registry built on the secure online PatientCrossroads platform, has exceeded both ... 1,600 participants have joined the PROMPT study, which seeks to advance understanding of ...
(Date:2/10/2016)... MA (PRWEB) , ... February 10, 2016 , ... ... is now available on Microsoft Azure. On Azure, Arvados provides capabilities for managing ... saw clear demand for Microsoft Azure from major institutions collecting and analyzing genomic ...
Breaking Biology Technology: