HOME >> BIOLOGY >> NEWS
Past experience of pheromones induces dominant courtship behavior in fruit flies

By investigating the interplay between pheromone signaling and behavior in fruit flies, researchers have begun to understand how an adult fly's earlier experience as a young individual can influence its behavior towards other flies as an adult. In particular, the researchers found that pheromone signals in the context of experience with adult flies can influence how young flies will behave once they reach maturity.

The work is reported by Jean-Francois Ferveur and colleagues at the Universite de Bourgogne, France, and the University of Manchester, United Kingdom.

When an adult male fruit fly encounters a young male fly, he will actively court the younger individual, sometimes becoming aggressive. These young males that have encountered older flies will go on to similarly dominate other adult males that had encountered only young flies--something in the early experience of the "dominant" flies makes them more aggressive. In the new work, researchers investigated exactly what it is about past experience of these flies that influences adult behavior. Clues caused the researchers to suspect that a key role was played by a chemical signal--a pheromone--carried by adult males during the early encounter.

To prove this, the researches used mutant flies that lack the normal adult pheromones, and they covered these pheromone-defective flies with a variety of other smells. The researchers were able to demonstrate that a male shows courtship dominance behavior over young males if he has been exposed to the smell of normal adult males during a critical period in his life--the first 24 hours. In fact, an encounter with a single adult male was sufficient to make males exhibit dominance behavior when they reached adulthood. The researchers found that, intriguingly, it was not enough for young males to smell these pheromones--the pheromones had to be carried by active adult males. The effect was so strong that males carried on exhibiting courtship dominance b
'"/>

Contact: Heidi Hardman
hhardman@cell.com
1-617-397-2879
Cell Press
10-Oct-2005


Page: 1 2

Related biology news :

1. Success rates for prostate cancer depend on experience of surgeon
2. Out-of-body experiences may be caused by arousal system disturbances in brain
3. Early family experience can reverse the effects of genes, UCLA psychologists report
4. Mothers who gain weight between pregnancies may experience pregnancy complications
5. Long-term changes in experience cause neurons to sprout new long-lasting connections
6. Brain differences could explain why males and females experience pain relief differently
7. People with near death experiences can differ in sleep-wake control
8. Just the expectation of a mirthful laughter experience boosts endorphins 27 percent, HGH 87 percent
9. When mice choose mates, experience counts
10. Women pregnant with girls experience more severe asthma symptoms
11. Penguin chicks exposed to human visitors experience spike in stress hormone

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/11/2017)... 11, 2017 No two people are ... the New York University Tandon School of Engineering ... found that partial similarities between prints are common ... mobile phones and other electronic devices can be ... vulnerability lies in the fact that fingerprint-based authentication ...
(Date:4/5/2017)... April 5, 2017  The Allen Institute for Cell ... Explorer: a one-of-a-kind portal and dynamic digital window into ... data, the first application of deep learning to create ... cell lines and a growing suite of powerful tools. ... these and future publicly available resources created and shared ...
(Date:4/4/2017)... YORK , April 4, 2017   EyeLock ... today announced that the United States Patent and Trademark ... patent broadly covers the linking of an iris image ... same transaction) and represents the company,s 45 th ... latest patent is very timely given the multi-modal biometric ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... 2017 , ... AMRI, a global contract research, development and ... outcomes and quality of life, will now be offering its impurity solutions as ... regulatory requirements for all new drug products, including the finalization of ICH M7 ...
(Date:10/11/2017)... Wayne. NJ (PRWEB) , ... October 11, 2017 , ... Personal eye wash is a ... rinse one eye at a time. So which eye do you rinse first if a ... you have Plum Duo Eye Wash with its unique dual eye piece. , ...
(Date:10/11/2017)... LAGUNA HILLS, Calif. , Oct. 11, 2017  SkylineDx ... London (ICR) and University of Leeds ... to risk-stratify patients with multiple myeloma (MM), in a multi-centric ... The University of Leeds is the ... UK, and ICR will perform the testing services to include ...
(Date:10/10/2017)... ... ... San Diego-based team building and cooking events company, Lajollacooks4u, has unveiled a ... new look is part of a transformation to increase awareness, appeal to new markets ... It will also expand its service offering from its signature gourmet cooking classes and ...
Breaking Biology Technology:
Cached News: