Navigation Links
Sexual cooperation: Mating increases longevity in ant queens

The phenomenon of sexual conflict is a powerful driving force in the evolution of reproductive biology for many animal species. Males often try to manipulate their female mates during copulation--for example, by traumatic inseminations (as in the case of bed bugs) or by the transfer of toxic seminal fluids (as in the case of the fruitfly Drosophila). These manipulations are beneficial to males because, for example, they reduce female re-mating probability or boost their fecundity directly after mating, but they can be very harmful to females, whose lifespan and future reproductive output can be drastically reduced. New findings suggest that in some social insects--in which both sexes ultimately benefit from long, successful reproductive lives of females--sexual cooperation, rather than sexual conflict, may be favored.


The findings, reported in the February 8 issue of Current Biology by researchers from the Universities of Regensburg, Germany, and Copenhagen, Denmark, show that queens of the social ant Cardiocondyla obscurior actually benefit from mating by gaining increased lifespan and reproductive success, living longer irrespective of whether males could transfer viable sperm or had been sterilized prior to mating. It remains unknown how mating increases the longevity of the females.

Sexual cooperation, rather than sexual conflict, is promoted by the life history of social insects; whereas most insect females undergo repeated phases of mating and reproduction throughout their lifetime, ant queens in social species mate only during a short period early in life and store and use the sperm of their mate for the rest of their lives. Sexual offspring are only produced after several months or years of colony growth, during which a sterile worker force is built up in the population. The fact that mates bond so early reduces the conflict between mating partners because both sexes benefit from the queen experiencing a long reproductive phase after th
'"/>

Source:Cell Press


Page: 1 2

Related biology news :

1. New study: Sexually transmitted disease treatment can be effectively administered by sex partners
2. Sexual reproduction delays aging in a mammalian species
3. Same-Sex Mating Discovered in a Toxic Fungus
4. The price of vanity: Mating with showy males may reduce offsprings ability to fight off pathogens
5. Global warming increases oyster sensitivity to pollution
6. Prenatal exposure to famine increases risk of schizophrenia
7. Gene increases risk of tuberculosis
8. Male rivalry increases when females at most fertile, say researchers
9. Lack of a key enzyme dramatically increases resistance to sepsis
10. Variation in bitter-taste receptor gene increases risk for alcoholism
11. Gene variation increases SIDS risk in African Americans
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Sexual cooperation Mating increases longevity ant queens

(Date:7/11/2014)... Canyon fire started near the City of Entiat on ... resources, the fire quickly grew to over 1,000 acres ... the fire is under investigation by the Washington Department ... with existing local resources in developing fire control strategies ... (USFS), Washington State Department of Natural Resources, (WA DNR), ...
(Date:7/11/2014)... Stem Cell scientists have set a "mouse TRAP" to ... by a recent study published in the Journal ... uses a technique called TRAP to extract cellular and ... Invented by scientists at the Rockefeller Institute for Medical ... to the protein-making machinery, or ribosomes, of the cell ...
(Date:7/11/2014)... develop relationships with other group members to reduce aggression ... baboons the strategy for grooming activities shows a certain ... in the scientific journal Biology Letters . , ... not practiced without ulterior motives. To be groomed has ... while grooming another individual can provide access to infants, ...
Breaking Biology News(10 mins):Baboons groom early in the day to get benefits later 2
... completely, the end products are carbon dioxide and water. Today ... into the air adding to global warming; or the ... unknown consequences. But it,s not impossible, says Liviu M. ... St. Louis, to drive things the other way, turning carbon ...
... Washington, D.C. (November 30, 2010) -- A broad review of ... the Journal of Renewable and Sustainable Energy . The ... viable power source but that the current fuel cycle is ... of future costs must be built on basic assumptions that ...
... DURHAM, N.C. As the U.S. Environmental Protection Agency ... a Duke University study identifies new monitoring protocols and ... predict the ecological impacts of coal ash contaminants. ... and where we look for coal ash contaminants," says ...
Cached Biology News:Chemistry for greenhouse gases 2Chemistry for greenhouse gases 3Chemistry for greenhouse gases 4Duke scientists look deeper for coal ash hazards 2
(Date:7/10/2014)... 17, 2014 Using microscopic polymer light resonators ... researchers at MIT,s Quantum Photonics Laboratory have developed ... the parts-per-billion range. Optical sensors are ideal for ... signal-to-noise ratio, compact, lightweight nature, and immunity to ... had been developed before, the MIT team conceived ...
(Date:7/10/2014)... the basis of psychiatric disorders has been extremely challenging ... risk but are insufficient to cause disease. Now investigators ... Press journal Cell Stem Cell describe a ... risks interact with other risk factors or environmental exposures ... research pinpoints a genetic variant that may predispose individuals ...
(Date:7/10/2014)... Wash. The lithium-ion batteries that power our laptops ... longer on a single charge with the help of ... porous material to replace the graphite traditionally used in ... than 10 times the energy storage capacity of graphite. ... battery electrode was published today in Nature Communications ...
(Date:7/10/2014)... Since the 1960s, theatergoers have shelled out for ... to enhance their viewing experience. These basic devices, ... artificial three-dimensional reality, may soon be rendered obsolete ... by Tel Aviv University researchers. , TAU doctoral ... have developed highly efficient holography based on nanoantennas ...
Breaking Biology Technology:Swell new sensors 2New strategy could uncover genes at the root of psychiatric illnesses 2Silicon sponge improves lithium-ion battery performance 2Silicon sponge improves lithium-ion battery performance 3Projecting a 3-dimensional future 2Projecting a 3-dimensional future 3
... (Euronext: AMT), a leader in the field of,human gene ... for the full year 2008 on Tuesday, February 24, ... these results, the Company will,conduct a conference call that ... The dial-in number for the Netherlands is 0800-949-4166 ...
... 18 Transgenomic Inc. (OTC Bulletin Board: TBIO) announces the following Webcast: , , ... Conference Call, ... Eastern, Where: http://www.transgenomic.com/events.asp?id=6 , How: ... at the, ...
... Directors wishes to confirm to Stockholders that at its meeting ... 15 with effect from February 17, 2009. This initiative ... interests of keeping stockholders and other stakeholders informed the Board ... release the company from its United States Securities and Exchange ...
Cached Biology Technology:AMT to Release Full Year 2008 Results on February 24, 2009 2Webcast Alert: Transgenomic Inc. Announces Fourth Quarter 2008 Earnings Release Conference Call Webcast 2EESTECH Inc - Release From SEC Filing 2EESTECH Inc - Release From SEC Filing 3EESTECH Inc - Release From SEC Filing 4
BD Biocoat Matrigel Matrix Thin Layer 35 mm Culture Dishes...
... cultured in RPMI 1640 with 2 mM L-glutamine ... In order to keep the antigens in ... The cells are arrayed on a 12-well ... surface specifically treated to enhance cellular attachment and ...
... are derived from the Spodoptera frugiperda Sf21 cell ... in transfections, plaque assays, virus production, and protein ... that optimizes recovery of viable cells after thawing. ... Insect Cell Medium and can also be grown ...
... is a software package that provides ... for custom buffer creation, set-up of ... crystallization trials. The software helps crystallographers ... automated protein crystallography: ...
Biology Products: