HOME >> BIOLOGY >> NEWS
The bee that would be queen

TEMPE, Ariz. -- A team of researchers from Arizona State University, Purdue University and the Norwegian University of Life Sciences has discovered evidence that honeybees have adopted a phylogenetically old molecular cascade TOR (target of rapamycin), linked to nutrient and energy sensing and put it to use in caste development.

The findings, published in the June 6 edition of PLoS ONE, the online, open-access journal from the Public Library of Science, show that TOR is directly linked in the nutrient-induced development of female honeybees into either queens, the caste of large dominant egg-layers, or into workers, the caste of small helpers.

Our study provides three independent lines of evidence gene expression, pharmacology and RNA interference (RNAi) that converge on one conclusion: selection can have acted on the TOR pathway to enable two distinct phenotypes to evolve in the bee, says Gro Amdam, an assistant professor in ASUs School of Life Sciences.

The researchers found that queen-fate can be blocked, and that workers develop, when TOR activity is reduced during development.

Amdam notes that while social insect queens and workers have been subjects of great fascination for centuries, and scientific study for the last few decades, the gene regulatory pathways responsible for determining caste fate has remained largely unknown. This is the first time a genetic pathway has been identified to control these two phenotypes, says Amdam, who heads social insect studies in laboratories at both ASU and the Norwegian University Department of Animal and Aquacultural Sciences.

The finding that queens and workers can emerge from an old pathway that controls tissue growth in a variety of species, including humans, helps us understand what evolution builds on when it produces seemingly radically new phenotypes, Amdam says.


'"/>

Contact: Margaret Coulombe
Margaret.coulombe@asu.edu
480-787-8934
Arizona State University
5-Jun-2007


Page: 1

Related biology news :

1. AAAS analysis finds Congress would add billions to FY 2008 R&D investment
2. Smallpox outbreak: How long would it take for vaccines to protect people? Would it work?
3. 2-protein team would be lost without each other
4. Healthy coastal wetlands would adapt to rising oceans
5. Is it ethical for scientists to do research abroad that would be forbidden at home?
6. Designer babies - what would you do for a healthy baby?
7. New discovery: If it werent for this enzyme, decomposing pesticide would take millennia
8. Proposal would allow wild animals to roam North America
9. Cookbook recipes would cure disease with nontoxic DNA delivery systems
10. Passage of Marin County GMO ban would encourage widespread use of harsh pesticides
11. Passage of GMO ban in San Luis Obispo would encourage use of harsh pesticides

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


(Date:4/18/2017)... a global expert in SoC-based imaging and computing solutions, has developed ... the company,s hybrid codec technology. A demonstration utilizing TeraFaces ® , ... showcased during the upcoming Medtec Japan at Tokyo Big Sight April ... Vegas Convention Center April 24-27. ... Click here for an image of the M820 ...
(Date:4/11/2017)... 11, 2017 Crossmatch®, a globally-recognized leader ... today announced that it has been awarded a ... Activity (IARPA) to develop next-generation Presentation Attack Detection ... "Innovation has been a driving force within Crossmatch ... allow us to innovate and develop new technologies ...
(Date:4/6/2017)... Forecasts by Product Type (EAC), Biometrics, Card-Based ... & Logistics, Government & Public Sector, Utilities / Energy ... Nuclear Power), Industrial, Retail, Business Organisation (BFSI), Hospitality & ... for a definitive report on the $27.9bn Access Control ... ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... , ... They call it the “hairy ball.” It’s an ... a system of linkages and connections so complex and dense that “it looks ... at Worcester Polytechnic Institute (WPI) and director of the university’s bioinformatics and computational ...
(Date:10/12/2017)... ... October 12, 2017 , ... BioMedGPS announces expanded coverage ... its newest module, US Hemostats & Sealants. , SmartTRAK’s US Market for Hemostats ... sealants, synthetic sealants and biologic sealants used in surgical applications. BioMedGPS estimates the ...
(Date:10/11/2017)... LINDA, CA (PRWEB) , ... October 11, 2017 ... ... to upregulate any gene in its endogenous context, enabling overexpression experiments and avoiding ... (CRISPRa) system with small RNA guides is transformative for performing systematic gain-of-function studies. ...
(Date:10/11/2017)... -- VMS BioMarketing, a leading provider of patient support solutions, has ... (CNE) network, which will launch this week. The VMS CNEs ... professionals to enhance the patient care experience by delivering peer-to-peer ... care professionals to help women who have been diagnosed and ... ...
Breaking Biology Technology:
Cached News: