Navigation Links
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 be
'"/>

Source:Cell Press


Page: 1 2

Related biology news :

1. Penguin chicks exposed to human visitors experience spike in stress hormone
2. Virtual animal shelters ?How the Internet is transforming the experience of pet adoptions
3. When mice choose mates, experience counts
4. Brain differences could explain why males and females experience pain relief differently
5. Just the expectation of a mirthful laughter experience boosts endorphins 27 percent, HGH 87 percent
6. Long-term changes in experience cause neurons to sprout new long-lasting connections
7. Hopkins scientists show hallucinogen in mushrooms creates universal mystical experience
8. Out-of-body experiences may be caused by arousal system disturbances in brain
9. Researchers find how protein allows insects to detect and respond to pheromones
10. Olfactory system detects pheromones that control reproduction
11. Human trial proves ricin vaccine safe, induces neutralizing antibodies; further tests planned
Post Your Comments:
(Date:9/18/2014)... probably the ultimate form of camouflage: you don,t just ... strategy is not as uncommon as you might think. ... USA, explains that the larval life stages of many ... of the anatomy that most creatures cannot make transparent. ... to shield each individual eye unit with an opaque ...
(Date:9/18/2014)... Clownfish spend their entire lives nestling in the protective ... as babies they sometimes travel hundreds of kilometres across ... by reef fish has been predicted, this is the ... between distant populations has been observed. , Dr Steve ... at the University of Exeter, and colleagues from the ...
(Date:9/17/2014)... the creation of the Santa Ana Wildfire Threat Index ... potential of the powerful, hot, dry Santa Ana wind, ... index was introduced Sept. 17 by the U.S. Forest ... and Electric. , The index includes four classification levels ... to help fire agencies and other emergency responders, the ...
Breaking Biology News(10 mins):Transparent larvae hide opaque eyes behind reflections 2Expedition finds Nemo can travel great distances to connect populations 2Expedition finds Nemo can travel great distances to connect populations 3UCLA scientists play key role in developing new Santa Ana Wildfire Threat Index 2
... close relative of the Formosan "super termite" that's gnawing ... established in South Florida, according to University of Florida ... in tropical areas such as Brazil and the West ... to Florida until now," said Nan-Yao Su, a professor ...
... geneticist Harvey D. Blackburn is responsible for collecting and ... semen and embryos -- to make sure there's enough ... of his collection deals with important livestock such as ... the collections Blackburn, who is the coordinator of the ...
... has found that one of the cell's largest families ... regulate the development of nerve cells, also controls nerve ... learning and memory. These findings, the first to link ... appear in the May issue of Nature Cell Biology, ...
Cached Biology News:Cousin of Asian super termite invades Florida 2Making Sure Sacred Sheep Don't Become Extinct 2Structure-building cell signals also may influence learning and memory 2Structure-building cell signals also may influence learning and memory 3
(Date:9/18/2014)... 18, 2014 Texas Governor Rick ... Texas A&M Health Science Center CEO Brett Giroir, ... Health and Human Services (HHS), State of Texas ... pandemic influenza vaccine manufacturing facility in Bryan, Texas, ... for the Texas A&M Biocorridor – a rapidly ...
(Date:9/18/2014)... -- Research and Markets has announced the ... Industry Report, 2014-2017" report to their offering. ... can differentiate into specialized cells and can divide (through ... can be applied to treatment of cardiovascular diseases, leukemia ... damage or lesion of liver, kidney and other parenchymal ...
(Date:9/18/2014)... , Sept. 18, 2014 Research ... "Global Human Albumin Industry Report 2014" report ... Albumin Industry Report 2014 is a professional and in-depth ... albumin industry. The report provides a basic ... industry chain structure. The human albumin market analysis is ...
(Date:9/18/2014)... Leatherwood Plastics has selected Vycom’s ... stay competitive in the semiconductor, clean room and ... impact product quality and productivity, according to Dwight ... in 1980 in Lewisville, TX, Leatherwood Plastics ... left the business. Much of Leatherwood’s equipment building ...
Breaking Biology Technology:Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 2Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 3Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 4Global and Chinese Stem Cell Industry Report, 2014-2017 2Global and Chinese Stem Cell Industry Report, 2014-2017 3Global Human Albumin Industry Report 2014 2Global Human Albumin Industry Report 2014 3Leatherwood Plastics Selects Vycom’s Flametec PVC-C Material to Stay Competitive in Semiconductor and Lab Equipment Industries 2
... OAKS, Calif., Nov. 1, 2010 Amgen (Nasdaq: ... Miletich, M.D., Ph.D., will urge members of a U.S. Food ... for biosimilars to establish approval standards that ensure patient safety ... and sound policy will follow," Dr. Miletich said.  "Amgen believes ...
... N.J., Nov. 1, 2010 PharmaNet Development Group, Inc., ... biotechnology, generic drug and medical device companies, today announced ... topics during the 9th Annual Partnerships in Clinical Trials ... in Vienna, Austria.   At the conference, ...
... today the company will present the results of a Week-24 ... in treatment-naive patients with chronic genotype 1 hepatitis C virus ... for the Study of Liver Diseases (AASLD) in Boston, MA., ... late-breaker oral presentation on Monday, November 1.   ...
Cached Biology Technology:Amgen to Provide Testimony at FDA Hearing on Biosimilars 2Amgen to Provide Testimony at FDA Hearing on Biosimilars 3Amgen to Provide Testimony at FDA Hearing on Biosimilars 4PharmaNet Development Group Experts to Share Insights at the 9th Annual Partnerships in Clinical Trials Conference in Vienna 2Week-24 Interim Results From Phase 2b PILLAR Study to be Presented as Late-Breaker at AASLD 2Week-24 Interim Results From Phase 2b PILLAR Study to be Presented as Late-Breaker at AASLD 3Week-24 Interim Results From Phase 2b PILLAR Study to be Presented as Late-Breaker at AASLD 4