Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Lemur produces complex bouquet of scents to seduce mate

25.06.2008
For lemurs, genetic diversity and scent complexity go hand in hand during the breeding season.

This has just been revealed by researchers at Duke University in the United States and the Centre d'écologie fonctionnelle et évolutive (CNRS / Universités Montpellier 1, 2 and 3 / ENSA Montpellier / CIRAD / École pratique des hautes études de Paris).

Male lemurs are able to signal their genetic quality through an olfactory cue. The perfume attracts females and provides the basis for their choice of reproductive partner. This work has just been published online in the journal Molecular Ecology.

Olfaction, little studied in primates until now (1), is a significant means of communication in certain monkeys, and especially in lemurs. These mammals, which live almost exclusively in Madagascar, include more than thirty species. One of the best known is the ring-tailed lemur, Lemur catta, a highly social species that lives in small, female-dominated groups. In this species, olfactory communication plays an essential role in social relations.

... more about:
»lemur »olfactory

Genetic diversity and complexity of scent

The Lemur catta male possesses three sets of glands that produce scent molecules, including scrotal glands on the testicles. Marie Charpentier, researcher at the Centre d'écologie fonctionnelle et évolutive (2), and her colleagues at Duke University (3) were interested in olfactory communication in these primates. They studied the scents released from the glands of 19 adult males living in a semi-free colony at the Duke Lemur Center. They discovered that the chemical diversity of secreted odors was correlated with the genetic diversity of the individual. The greater a male's genetic diversity (the more heterozygous (4) he is), the more complex his olfactory message (the scent molecules are released more frequently and abundantly).

Surprisingly, this phenomenon is only observed during the breeding season, a relatively stressful time for males who are in competition for females. The females, for their part, have to make a good reproductive choice, and to this end, they pick out the males that are the most heterozygous -- a sign of health -- by their ability to diffuse a complex bouquet of scents. This signal enables females to evaluate the genetic worth of males and to choose the one with the best qualities to pass on to offspring.

Another important result: the less related two males are in terms of their scent, the less they are related genetically as well. The olfactory signal therefore carries a second message of how closely two individuals are related. Again, this correlation is only detectable during the breeding season, precisely when individuals are in competition.

Julien Guillaume | alfa
Further information:
http://www.cnrs-dir.fr

Further reports about: lemur olfactory

More articles from Life Sciences:

nachricht Cryo-electron microscopy achieves unprecedented resolution using new computational methods
24.03.2017 | DOE/Lawrence Berkeley National Laboratory

nachricht How cheetahs stay fit and healthy
24.03.2017 | Forschungsverbund Berlin e.V.

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Giant Magnetic Fields in the Universe

Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.

The results will be published on March 22 in the journal „Astronomy & Astrophysics“.

Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...

Im Focus: Tracing down linear ubiquitination

Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.

Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...

Im Focus: Perovskite edges can be tuned for optoelectronic performance

Layered 2D material improves efficiency for solar cells and LEDs

In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...

Im Focus: Polymer-coated silicon nanosheets as alternative to graphene: A perfect team for nanoelectronics

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...

Im Focus: Researchers Imitate Molecular Crowding in Cells

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International Land Use Symposium ILUS 2017: Call for Abstracts and Registration open

20.03.2017 | Event News

CONNECT 2017: International congress on connective tissue

14.03.2017 | Event News

ICTM Conference: Turbine Construction between Big Data and Additive Manufacturing

07.03.2017 | Event News

 
Latest News

Argon is not the 'dope' for metallic hydrogen

24.03.2017 | Materials Sciences

Astronomers find unexpected, dust-obscured star formation in distant galaxy

24.03.2017 | Physics and Astronomy

Gravitational wave kicks monster black hole out of galactic core

24.03.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>