HOME >> BIOLOGY >> NEWS
Insights into honey bee sex gene could bring sweet success in breeding

ANN ARBOR, Mich.---What makes a bee a he or a she?

Three years ago, scientists pinpointed a gene called csd that determines gender in honey bees, and now a research team led by University of Michigan evolutionary biologist Jianzhi "George" Zhang has unraveled details of how the gene evolved. The new insights could prove useful in designing strategies for breeding honey bees, which are major pollinators of economically important crops---and notoriously tricky to breed.

The findings of Zhang and collaborators appear in a special issue of Genome Research devoted to the biology of the honey bee. The issue will be published online and in print Oct. 26, coinciding with the publication of the honey bee genome sequence in the journal Nature.

Scientists have long known that in bees---as well as wasps, ants, ticks, mites and some 20 percent of all animals---unfertilized eggs develop into males, while females typically result from fertilized eggs. But that's not the whole story, and the discovery in 2003 of csd (the complementary sex determination gene) helped fill in the blanks. The gene has many versions, or alleles. Males inherit a single copy of the gene; bees that inherit two copies, each a different version, become female. Bees that have the misfortune of inheriting two identical copies of csd develop into sterile males but are quickly eaten at the larval stage by female worker bees.

The system works fine in nature, where it prevents the colony from wasting precious energy and resources on abnormal males incapable of carrying out the all-important role of mating. But in bees raised for honey or for pollinating crops, the sex-determination system can cause problems. Beekeepers inbreed bees to select desirable traits, but inbreeding raises the odds of producing fertilized eggs with two copies of the same csd allele. If too many sterile males result, the colony may die out.

"If we know more details about how many alleles ther
'"/>

Contact: Nancy Ross-Flanigan
rossflan@umich.edu
734-647-1853
University of Michigan
26-Oct-2006


Page: 1 2

Related biology news :

1. Insights into osteosarcoma in cats and dogs may improve palliative care
2. Insights into activity-dependent neuronal growth through RSRF-supported research
3. Symposium Environmental Change in Siberia -- Insights From Earth Observation and Modeling
4. Yale technology spins out varicose vein device company: Vascular Insights, LLC
5. Genetic diversity in honeybee colonies boosts productivity
6. Undergraduate research shows leaderless honeybee organizing
7. Detecting poisons in nectar is an odour-ous task for honeybees
8. The social life of honeybees coordinated by a single gene
9. Research upsetting some notions about honey bees
10. Detecting explosives with honeybees
11. Michigan State researcher traces the evolution of honey bee gender

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


(Date:2/6/2019)... FRANCISCO (PRWEB) , ... February 04, 2019 , ... ... of a new Explorer™ story which provides insights to help individuals understand how ... to decreased cardiovascular wellness. , After individuals eat foods that contain choline ...
(Date:2/2/2019)... ... February 01, 2019 , ... uBiome, ... Testing Laboratories by A2LA, which establishes requirements for medical laboratories to demonstrate competence ... is already CLIA-licensed as well as College of American Pathologists (CAP)-accredited, a designation ...
(Date:1/24/2019)... ... 23, 2019 , ... rHEALTH LLC, an innovative digital health ... the United States Patent and Trademark Office (USPTO) for U.S. Patent Application No. ... This application covers the addition of a length scale to hydrogel microparticles. ...
Breaking Biology News(10 mins):
(Date:1/15/2019)... ... 15, 2019 , ... Personalized treatment plans may extend life expectancy for early-stage ... new study published in the journal Radiology. , Kidney, or renal, tumors are ... surgical procedure in which the tumor and part of the kidney are removed. However, ...
(Date:1/11/2019)... ... 11, 2019 , ... Drawing on over 22 years of software development expertise, ... EST will explore some of the key lessons that have driven customer satisfaction with ... multiple vendors, and find out how to ensure that you continue to be able ...
(Date:1/10/2019)... (PRWEB) , ... January 08, 2019 , ... VGI Medical ... has become a leader in bringing innovation to the market including VerteLoc, CerLoc, SiJoin ... the facet joint by utilizing a unique patented dual geometric design to limit motion ...
(Date:1/7/2019)... ... 07, 2019 , ... Kainos Medicine Inc. today announced that ... code-named "KM-819." KM-819 is an orally active small molecule that is a ... , This Phase 1 randomized, double-blind, placebo-controlled dose-escalation study was to evaluate ...
Breaking Biology Technology:
Cached News: