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:

(Date:11/20/2015)... 20, 2015 NXTD ) ("NXT-ID" ... the growing mobile commerce market and creator of the ... , was recently interviewed on The RedChip Money ... this weekend on Bloomberg Europe , Bloomberg Asia, ... --> NXTD ) ("NXT-ID" or the "Company"), a ...
(Date:11/19/2015)... Nov. 19, 2015  Although some 350 companies are ... by a few companies, according to Kalorama Information. These include ... of the market share of the 6.1 billion-dollar molecular ... World Market for Molecular Diagnostic s .    ... is still controlled by one company and only a ...
(Date:11/18/2015)... New York , November 18, 2015 ... Market Research has published a new market report titled ... Growth, Trends, and Forecast, 2015 - 2021. According to the ... in 2014 and is anticipated to reach US$29.1 bn ... to 2021. North America ...
Breaking Biology News(10 mins):
(Date:11/25/2015)... 26, 2015 --> ... 2016 - 2020 report analyzes that automating biobanking ... quality in long-term samples, minimizing manual errors, improving ... minimizes manual errors such as mislabeling or inaccurate ... it plays a vital role in blood fractionation, ...
(Date:11/25/2015)... 2015  Neurocrine Biosciences, Inc. (Nasdaq: NBIX ) ... CEO of Neurocrine Biosciences, will be presenting at the ... New York . .   ... 5 minutes prior to the presentation to download or ... will be available on the website approximately one hour ...
(Date:11/25/2015)... , ... November 25, 2015 , ... ... uBiome, were featured on AngelList early in their initial angel funding process. Now, ... syndicate for individuals looking to make early stage investments in the microbiome space. ...
(Date:11/24/2015)... 24, 2015 /CNW/ - iCo Therapeutics ("iCo" or "the ... results for the quarter ended September 30, 2015. ... dollars and presented under International Financial Reporting Standards ... ," said Andrew Rae , President & ... are not only value enriching for this clinical ...
Breaking Biology Technology: