HOME >> BIOLOGY >> NEWS
More news in the battle between the sexes

By employing experimental evolution to study the effects of mating within and between different insect populations, researchers have gained insight into the ways in which sexual selection can affect fitness and influence various aspects of evolutionary change.

As a consequence of investigating the short-term fitness consequences of mate choice, researchers had largely come to believe that sexual selection is beneficial. However, conflicts between the sexes are ubiquitous and could erode fitness. Although sexual conflict is widespread, its evolutionary consequences remain largely unknown.

In the new study, which broadens our understanding of sexual selection and sexual conflict, Oliver Martin and David Hosken from the University of Zrich subjected flies to experimental evolution for 44 generations and looked at the fitness consequences of evolving under high, low, or relaxed sexual conflict. Their results indicate that foreign males from the conflict populations are more costly to females than familiar males and that sexual selection can be costly to fitness. However, they also found that at intermediate levels of sexual conflict, benefits of sexual selection may outweigh these costs.

These findings support previous work indicating that sexual conflict can cause rapid population divergence, although the proximate mechanism(s) involved remains unknown. Additionally, this work highlights the fact that sexual selection can be costly and generate a fitness load.


'"/>

Contact: Heidi Hardman
hhardman@cell.com
617-397-2879
Cell Press
24-May-2004


Page: 1

Related biology news :

1. Rutgers geneticist to battle autism with $3.7 million NIH grant
2. Taking aim at bioterrorism: UH professor gets HHS funding to battle anthrax
3. Fiber-boosted formula for piglets shows promise in battle against infant diarrhea
4. Italian research reveals a new twist in the battle of the sexes
5. Baboon behavior offers clues in the all-too-human battle of the bulge
6. Obesity not a personal failing, but a battle against biology
7. K-State microbiologist secret agent in battle against E. coli, other foodborne pathogens
8. Wrong proteins targeted in battle against cancer?
9. Yeast research targets drug resistance battle
10. New AIDS drug discoveries to battle drug-resistant HIV strains
11. New technologies to battle little known, widespread cattle disease

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/3/2016)... , June 3, 2016 ... von Nepal hat ... Lieferung hochsicherer geprägter Kennzeichen, einschließlich Personalisierung, Registrierung ... in der Produktion und Implementierung von Identitätsmanagementlösungen. ... Ausschreibung im Januar teilgenommen, aber Decatur wurde ...
(Date:6/2/2016)... Perimeter Surveillance & Detection Systems, Biometrics & ... & Other Service  The latest report from ... of the global Border Security market . Visiongain ... billion in 2016. Now: In November 2015 ... and hardware technologies for advanced video surveillance. ...
(Date:5/20/2016)... 20, 2016  VoiceIt is excited to announce ... By working together, VoiceIt and VoicePass ... and VoicePass take slightly different approaches to voice ... security and usability. ... new partnership. "This marketing and technology ...
Breaking Biology News(10 mins):
(Date:6/24/2016)... June 24, 2016  Regular discussions on a range of ... between the two entities said Poloz. Speaking at ... Ottawa , he pointed to the country,s inflation target, ... government. "In certain ... institutions have common economic goals, why not sit down and ...
(Date:6/23/2016)... ... June 23, 2016 , ... UAS LifeSciences, one of ... their brand, UP4™ Probiotics, into Target stores nationwide. The company, which has been ... Target to its list of well-respected retailers. This list includes such fine stores ...
(Date:6/23/2016)... ... June 23, 2016 , ... Charm Sciences, Inc. is ... has received AOAC Research Institute approval 061601. , “This is another AOAC-RI approval ... Bob Salter, Vice President of Regulatory and Industrial Affairs. “The Peel Plate methods ...
(Date:6/23/2016)... ... June 23, 2016 , ... STACS DNA Inc., the sample ... the Arkansas State Crime Laboratory, has joined STACS DNA as a Field Application Specialist. ... said Jocelyn Tremblay, President and COO of STACS DNA. “In further expanding our capacity ...
Breaking Biology Technology:
Cached News: