Length of sex act in flies dictated by genetics

CORVALLIS New research on fruit flies has revealed that genes which are part of the animal's "biological clock" and control a variety of daily rhythmic behaviors also have other distinct and powerful effects which have nothing to do with light, dark or the rhythms of a 24-hour-day.

The study was just published by scientists from Oregon State University in a professional journal, Current Biology, and reports a surprising new role for these clock-related genes. Mutations in the clock genes "period" and "timeless" caused male flies to copulate significantly longer than usual.

This shows that clock genes affect not only behaviors on the time scale of 24 hours, but also behavioral timing on the order of minutes, including the length of the sex act. It also indicates that genes which were thought to be dedicated clock components seem to have a wide range of other effects that may have nothing to do with cyclic patterns of day and night.

"These genes probably have important regulatory functions in many other areas that we do not yet understand," said Jaga Giebultowicz, an OSU associate professor of zoology and principal investigator on this study.

For instance, Giebultowicz's team has found recently that when these genes are missing, both male and female fruit flies produce less sperm and eggs, and are less fertile.

In the course of this research on fecundity, a graduate student in Giebultowicz's lab, Laura Beaver, was observing flies in mating chambers, and noticed that flies missing normal period or timeless genes tended to copulate 30-50 percent longer than usual. In more detailed research, it was learned that it was the male fly that determined how long to continue the mating process and was prolonging the event he decided when it was time to quit, and that decision clearly involved clock genes.

In other studies over many years, the gene period, as well as other "clock" genes, have been extensively explored.

Giebultowicz has fou

Contact: Jaga Giebultowicz
Oregon State University

Page: 1 2

Related biology news :

1. Stress Hormone Levels Predict Length Of Gestation In Human Pregnancy
2. New Insights Into The Enigma Of Lengthening Longevity
3. How wounds heal Clues from flies
4. Study in flies allows researchers to visualize formation of a memory
5. Butterflies & the hormonal basis of interactions between life histories & morphology
6. Devastating parasitic weed may be felled by toxin borrowed from flies
7. Researchers model embryo implantation and tumour metastasis in fruit flies
8. Easily paralyzed flies provide clues to neurodegeneration
9. Male flesh flies high-speed pursuit of females
10. ESA astronaut flies Cervantes mission to ISS
11. Genes that regulate hearing link humans and fruit flies in new way

Post Your Comments:

(Date:8/21/2020)... ... August 20, 2020 , ... NDA ... , a Clinical Operations executive with expertise in clinical trial planning and feasibility, ... as an Expert Consultant. Throughout his career, Mr. Movahhed has helped design and ...
(Date:8/5/2020)... ... ... Regenative Labs has received approval from the Centers for Medicare & Medicaid ... Wharton’s jelly allografts to be assigned a Q code and be approved for application ... jelly allograft product to be recognized as a 361 HCT/P by CMS regulated under ...
(Date:7/18/2020)... ... July 16, 2020 , ... A study has ... Invictus Medical Neoasis™ active noise control device to attenuate typical noises in a ... device attenuated the alarm sounds from patient monitors, ventilators and other bedside devices ...
Breaking Biology News(10 mins):
(Date:8/15/2020)... , ... August 13, 2020 , ... True Terpenes ... creation of its Scientific Advisory Board (SAB) to research the medical potential of terpenes ... be enhanced when combined with terpenes. The board is focused on expanding the recently ...
(Date:8/12/2020)... ... August 11, 2020 , ... ... firm, is making available for free its new white paper – Simulated ... simulation testing into today’s biologics licensing application (BLA). In response, Modality Solutions ...
(Date:8/3/2020)... ... August 03, 2020 , ... ... Jim Corrigan, President and CEO has been named one of the 100 most ... industry sectors, PharmaVoice 100 honorees are selected based on how they have inspired ...
(Date:7/31/2020)... ... July 29, 2020 , ... G-CON ... of its new tagline, “BUILDING FOR LIFE.” The adoption of this taglines comes ... globe, requiring fast track capacity to provide patients with urgently needed vaccines and ...
Breaking Biology Technology:
Cached News: