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:
(Date:11/3/2014)... Australia report that low birth weight and preterm birth ... replacements in adulthood. Findings published in the American College ... , indicate that low birth weight and pre-term babies ... to OA as adults. , According to the ... are diagnosed with clinical OA. Symptoms of OA range ...
(Date:11/2/2014)... November 2014)—In support of a bold quest to rid ... Gates Foundation today announced an award of US$156 million ... (MVI) in building new vaccines that will interrupt the ... "accelerating to zero" agenda. Such vaccines would ensure that ... called an "immunological bed net." , This approach ...
(Date:11/2/2014)... walk into a bar and bump into a biologist . ... to some late-night nerd sketch, researchers have taken this premise ... biology, namely, finding meaning in the rising oceans of genomic ... cancer mutations that genome-wide studies are publishing at a dizzying ... parse the signal from the noise (and there is no ...
Breaking Biology News(10 mins):Preterm, low birth-weight babies may need new hips in adulthood 2New malaria vaccines to prevent infection and block transmission get a shot in the arm 2New malaria vaccines to prevent infection and block transmission get a shot in the arm 3New malaria vaccines to prevent infection and block transmission get a shot in the arm 4Mutant models 2Mutant models 3Mutant models 4
(Date:11/21/2014)... CA (PRWEB) November 21, 2014 Why ... that makes Albert Einstein so instantly recognizable? Why have ... physicist, mathematician, astronomer and author Hilton Ratcliffe seeks out ... have nothing at all to do with science. In ... Harbor Publishing , November 21, 2014), Ratcliffe puts it ...
(Date:11/21/2014)... SAN DIEGO , Nov. 20, 2014 /PRNewswire/ ... patient has been dosed in its Phase 1 ... and cisplatin for the treatment of malignant pleural ...  Polaris Group is conducting clinical trials on ADI-PEG ... other agents, for the treatment of several other ...
(Date:11/21/2014)... 20, 2014 /PRNewswire/ - BIOREM Inc. (TSXV: BRM) ("Biorem" or "the Company") ... ended September 30, 2014.  Biorem,s complete 2014 third quarter financial statements ... Financial Summary:Three-months ended September 30, , Nine-months ended ... , 2014 , 2013 , ... 5,281 , 6,715 , 14,476 Gross ...
(Date:11/18/2014)... LA (PRWEB) November 17, 2014 ... build-to-order, open architecture blade-based and rackmount computing infrastructure, ... Tesla® K80 dual-GPU accelerator throughout its GPU-enabled blade ... pair of the company’s latest proprietary 80-lane Gen3 ... eight discrete NVIDIA Tesla K80 dual-GPU accelerator cards ...
Breaking Biology Technology:“Stephen Hawking Smoked My Socks” Sparks Controversy in Science World 2“Stephen Hawking Smoked My Socks” Sparks Controversy in Science World 3“Stephen Hawking Smoked My Socks” Sparks Controversy in Science World 4Polaris Group Announces Treatment of First Patient in Phase 1 Study of ADI-PEG 20 plus Pemetrexed and Cisplatin in Malignant Pleural Mesothelioma And Non-Squamous Non-Small Cell Lung Carcinoma 2Biorem Reports Third Quarter Results 2Biorem Reports Third Quarter Results 3Cirrascale® Expands Multi-GPU Peering Solutions with Support for New NVIDIA Tesla K80 Dual-GPU Accelerators 2Cirrascale® Expands Multi-GPU Peering Solutions with Support for New NVIDIA Tesla K80 Dual-GPU Accelerators 3
Cached News: