Navigation Links
Tweedle coat fashions stocky flies

University of California, San Diego biologists have discovered that disruptions in genes they call Tweedles make fruit flies short and stout like Tweedledee and Tweedledum in Alice in Wonderland. They report in this week's issue of the journal Proceedings of the National Academy of Sciences that a defective TweedleD protein in the outer coat of fly larvae makes them appear compressed.

"It's not a trivial matter to put a shell on from the inside," explained Steven Wasserman, a professor of biology who headed the research team. "An insect needs to build up the flexibility, strength and shape of each part before sealing the outside. If you've ever peeled a golf ball, you realize there isn't just one thing holding it all together. Each part contributes."

The researchers discovered 27 different Tweedle genes in fruit flies. The different proteins in the Tweedle family are found in different parts of the cuticle--the tough outer coat in fly embryos and larvae. The exact function of the Tweedles is not known, but the researchers think they strengthen the cuticle. Make one part too weak or too strong and the larvae end up resembling their namesake.

Tweedles may be good targets for novel insecticides, the researchers say, because the gene family appears to be unique to insects. "We've discovered Tweedle genes in all insect species we've examined, but not in any other species," said Xiao Guan, a graduate student working with Wasserman and first author of the study.
'"/>

Source:University of California - San Diego


Page: 1

Related biology news :

1. Hormones and growth: The control of body size and developmental growth rate in fruit flies
2. Past experience of pheromones induces dominant courtship behavior in fruit flies
3. A resetting signal keeps circadian rhythm on track in Drosophila fruit flies
4. UCSD study finds anthrax toxins also harmful to fruit flies
5. New gene reduces retinal degeneration in fruit flies
6. Evolutionary shifts in olfactory sensitivities in fruit flies
7. Serotonin, acting in a specific brain region, promotes sleep in fruit flies
8. Fighting like a girl or boy determined by gene in fruit flies
9. First biomarker for human sleepiness identified in fruit flies
10. Researchers find link between food odors and lifespan in fruit flies
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/14/2016)... , Allemagne, March 14, 2016 ... ) - --> - Renvoi : image ... --> --> ... biométriques, fournit de nouveaux lecteurs d,empreintes digitales pour ... de DERMALOG sera utilisé pour produire des cartes ...
(Date:3/10/2016)... 10, 2016   Unisys Corporation (NYSE: UIS ... (CBP) is testing its biometric identity solution at the ... to help identify certain non-U.S. citizens leaving the country. ... designed to help determine the efficiency and accuracy of using ... and will run until May 2016. --> ...
(Date:3/8/2016)... March 8, 2016   Valencell , the ... announced it has secured $11M in Series D ... a new venture fund being launched by UAE-based ... from existing investors TDF Ventures and WSJ Joshua ... continue its triple-digit growth and accelerate its pioneering ...
Breaking Biology News(10 mins):
(Date:5/27/2016)... ... ... Doctors in Italy, Japan, the UK and the US have reached some surprising ... its link to malignant mesothelioma. Surviving Mesothelioma has just posted the details of their ... , The studies analyzed for the new report included more than 3,447 cancer patients. ...
(Date:5/26/2016)... NEW YORK , May 26, 2016 ... announced today that it will be a featured presenter at ... 2016 in New York City at ... Denis Corin , Q BioMed Inc. CEO, is scheduled ... presentation will cover the company,s business strategy, recent developments and ...
(Date:5/25/2016)... ... May 25, 2016 , ... Lajollacooks4u has become a rising hotspot ... rated one of its top attractions. Fortune 500 companies, such as Illumina, Hewlett-Packard, ... unique and intimate team-building experience. , Each event kicks off with an olive oil ...
(Date:5/25/2016)... , ... May 25, 2016 , ... Scientists at the ... options being tried for mesothelioma may be hampering the research that could lead to ... Click here to read it now. , The team evaluated 98 ...
Breaking Biology Technology: