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 e colony reaches sexual maturity.


'"/>

Source:Cell Press


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:


(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:3/30/2017)... LOS ANGELES , March 30, 2017  On ... Hack the Genome hackathon at ... This exciting two-day competition will focus on developing health ... experience. Hack the Genome is ... has been tremendous. The world,s largest companies in the ...
(Date:3/27/2017)... 27, 2017  Catholic Health Services (CHS) has ... Society (HIMSS) Analytics for achieving Stage 6 on ... . In addition, CHS previously earned a place ... an electronic medical record (EMR). "HIMSS ... of EMR usage in an outpatient setting.  This ...
Breaking Biology News(10 mins):
(Date:5/23/2017)... ... May 23, 2017 , ... Customers ... their control technology again and again. METTLER TOLEDO has released two new videos ... videos illustrate how integration of the ACT350 into Siemens and Allen Bradley PLCs ...
(Date:5/21/2017)... ... May 19, 2017 , ... ... educational conference of the American Association of Bioanalysts (AAB) and the College of ... Houston. The conference reinforces AAB’s commitment to excellence in clinical laboratory services and ...
(Date:5/18/2017)... Mass. (PRWEB) , ... May 18, 2017 , ... ... the procedure on April 28, 2017 at the Prince Of Wales Private Hospital. ... cervical disc at level C6-C7. The patient failed conservative treatments prior to undergoing ...
(Date:5/18/2017)... (PRWEB) , ... May 17, ... ... CRO standards with psychonneuroendocrine stress expertise, and further enhances its scientific power ... researcher, Douglas A. Granger, Ph.D., has agreed to join the scientific advisory ...
Breaking Biology Technology: