Navigation Links
Genital stimulation opens door for cryptic female choice in tsetse flies
Date:5/14/2009

By snipping off parts of male genitalia and reducing genital sensation in both male and female tsetse flies, researchers induced a suite of changes in female reproduction, including reduced ovulation, reduced sperm storage and increased re-mating attempts by the females. "To the best of our knowledge, this was the first study to look at female choice following experimental manipulation of both male and female genitalia," said William Eberhard, staff scientist at the Smithsonian Tropical Research Institute and professor of biology at the University of Costa Rica.

Cryptic female choicethe ability of females to control which sperm reaches their eggs during and after the mating processleads to rapid evolutionary changes in genital structure and is probably influenced by the number of times a female mates with different males.

"The tsetse fly Kama Sutra is long and elaborate," said Eberhard, who described the 30-minute ritual during which the male rubs the underside of the female's abdomen with his hind legs, sings to her by buzzing his wings, rubs her eyes with his front legs, and so on.

With Daniel Briceo, professor of biology at the University of Costa Rica, Eberhard modified male genital structures by cutting off a tooth that is typical of this species of tsetse fly and by smoothing a bristly surface by applying a coat of nail polish. In addition, they modified the sensations perceived by the female from these structures by altering the female sense organs on the portions of her body that these male structures contact during copulation. "We were surprised by the number of female processes that were influenced by modifying the stimuli received by the female from the male's genitalia," said Eberhard.


'/>"/>

Contact: Beth King
kingb@si.edu
703-487-3770 x8216
Smithsonian Tropical Research Institute
Source:Eurekalert  

Page: 1

Related biology news :

1. Folic acid to prevent congenital heart defects
2. Potential therapy for congenital muscular dystrophy
3. Hairspray is linked to common genital birth defect, says study
4. OSAs ISP launches with research on breathing disorders and congenital heart defects
5. Latest advances in interventional cardiology for congenital heart disease presented
6. Embryo biopsy does not affect early growth and risk of congenital malformations in PGD/PGS babies
7. Potential therapy discovered for hypophosphatasia, a congenital form of rickets
8. New book gives a human face to children with congenital heart disease
9. Coating improves electrical stimulation therapy used for Parkinsons, depression, chronic pain
10. Mobile Communication Market Opens up for Biometrics - Precise Biometrics Awarded 1st Prize at GSMA World Mobile Congress
11. Tiny tool to control growing blood vessels opens new potential in tumor research
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Genital stimulation opens door for cryptic female choice in tsetse flies
(Date:5/23/2017)... GENOA, Italy , May 23, 2017  Hunova, the first robotic ... and trunk, has been officially launched in Genoa, Italy ... Europe and the USA . The ... launched on the market by the IIT spin-off Movendo Technology thanks to ... view the Multimedia News Release, please click: ...
(Date:4/24/2017)... Janice Kephart , former 9/11 ... Partners, LLP (IdSP) , today issues the following ... March 6, 2017 Executive Order: Protecting the ... be instilled with greater confidence, enabling the reactivation ... applications are suspended by until at least July ...
(Date:4/13/2017)... SANTA MONICA, Calif. , April 13, 2017 /PRNewswire/ ... New York will feature emerging and ... Innovation Summits. Both Innovation Summits will run alongside the ... variety of speaker sessions, panels and demonstrations focused on ... east coast,s largest advanced design and manufacturing event will ...
Breaking Biology News(10 mins):
(Date:6/14/2017)... ... June 14, 2017 , ... Delpor, Inc. ( Delpor ... Phase II SBIR grant from the National Institute of Diabetes and Digestive and Kidney ... ). , The product is based on Delpor’s NANOPOR™ technology ...
(Date:6/13/2017)... Woburn, MA (PRWEB) , ... ... ... Incorporated, a leading international supplier of advanced flexible materials, has chosen The ... Forecasting a significant growth trajectory, Boyd Technologies is aligning its manufacturing operations ...
(Date:6/13/2017)... CA (PRWEB) , ... June 13, 2017 , ... ... solutions for GPU-accelerated deep learning research, today announced that it will offer the ... center GPUs based on the NVIDIA Volta™ architecture. , “NVIDIA’s DGX portfolio is ...
(Date:6/13/2017)... ... June 13, 2017 , ... Presented at American Diabetes Association: Abstract #2017-LB-7091-Diabetes, ... went on to develop chronic kidney disease within four years , Study ... evaluated 792 patients over a four year period , Results presented at ...
Breaking Biology Technology: