Navigation Links
First finding of a metabolite in 1 sex only
Date:8/21/2007

an atom of P-31 with a signature "chemical shift," indicating the presence of a unique, unidentified phosphorus compound.

They then isolated and analyzed the phosphorus compound, identifying it as 2-aminoethyl phosphonate, an uncommon but well-documented metabolite. AEP is not known to be a hormone.

The researchers tested gill tissue from crabs harvested in six different years from the Chesapeake Bay and the gulf coast of Florida. Specimens from each region produced similar results, confirming that the presence of AEP in males and absence in females is the norm for blue crabs.

But, Kleps said, it was still not possible to rule out that the difference between the sexes was due to a difference in their diet. Fortunately, while writing the first draft of the paper, Kleps happened to read that a rare gynandromorphic blue crab -- one half male, one half female -- had been captured by Romuald Lipcius of the Virginia Institute of Marine Science at the College of William & Mary.

The rare gynandromorph is divided down the middle, with a characteristic blue male claw and a female red claw. The underside of the crab is also visibly divided into male and female halves. After the crab died, Lipcius sent Kleps gill tissue from each side for analysis. The measured levels of AEP from the male and female gills provided additional evidence that AEP is a sex-specific compound.

"Since both sides of this strange crab have, of necessity, shared a diet and environment, we had completely independent confirmation of the sex-specific nature of this metabolite," said Kleps.

"That blue crabs have this sex-specific compound may be a fluke, or it might represent a common but overlooked process in animal development," he said.


'/>"/>

Contact: Jeanne Galatzer-Levy
jgala@uic.edu
312-996-1583
University of Illinois at Chicago
Source:Eurekalert

Page: 1 2

Related biology news :

1. A genes first kiss sets off that affair known as puberty
2. Timing is everything: First step in protein building revealed
3. Emory Eye Center Implants Its First Retinal Chips In Patients With Retinitis Pigmentosa
4. First atlas of key brain genes could speed research on cancer, neurological diseases
5. First-ever Compounds To Target Only Metastatic Cells Are Highly Effective Against Breast, Prostate, And Colon Cancers
6. NYCs First Rapid HIV Drug-resistant AIDS Case Prompts Call to Step Up HIV Prevention
7. First real-time view of developing neurons reveals surprises, say Stanford researchers
8. Love at first smell
9. Worlds largest rainforest drying experiment completes first phase
10. PCRM develops worlds first cruelty-free insulin assay
11. Breast-Cancer Risk Linked to Exposure to Traffic Emissions at Menarche, First Birth
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/31/2015)... , 31. Juli 2015 Die 10. internationale ... von BGI veranstaltet und findet vom 22. bis ... , statt. Die Konferenz ... ihrem Start 2006 ist die ICG weltweit zu ... geworden. Sie ist eines der dynamischsten, enthusiastischsten und ...
(Date:7/31/2015)... SHENZHEN, China , July 31, 2015 The ... ) will be held by BGI from October 22-25, 2015, in ... The conference is celebrating its 10 th ... become one of the world,s most influential annual meetings in ... enthusiastic, and enjoyable scientific gatherings. ICG-10 focuses ...
(Date:7/27/2015)... Calif. , July 27, 2015  Synaptics ... of human interface solutions, today announced that Huawei ... touchscreen solution for its stylish smartwatch. Huawei ... its proven reliability, low power and highly responsive ... wet finger. Huawei designers also required a classic ...
Breaking Biology News(10 mins):Die 10. internationale Konferenz zu Genomik (ICG-10) beginnt im Oktober 2Die 10. internationale Konferenz zu Genomik (ICG-10) beginnt im Oktober 3The 10th International Conference on Genomics (ICG-10) to Open in October 2Synaptics Touchscreen Solution Powers New Huawei Watch 2Synaptics Touchscreen Solution Powers New Huawei Watch 3
... use their vision for piloting, just like human pilots. ... specialized neurons to stimulate the wing muscles, which let ... these same neurons be used in a sort of ... and Julien Serres have just shown. These biorobotics specialists ...
... times more likely to have a Body Mass Index (BMI) ... and ten-year-olds are five times more likely, according to research ... researchers who studied BMI figures for more than a thousand ... significantly among younger children, but that levels were much more ...
... University of Pittsburgh Cancer Institute's Center for Environmental Oncology ... that mimic the actions of estrogen, the female hormone. ... concentrate chemicals from their habitat within their bodies, these ... way into the region's waterways. , The study, ...
Cached Biology News:Is there a pilot in the insect? 2Is there a pilot in the insect? 320-year study shows significant rise in childhood obesity, especially among girls 2What's in the water? Estrogenic activity documented in fish caught in Pittsburgh's rivers 2
(Date:7/29/2015)... , July 30, 2015 ... reports results for the second quarter of 2015. ... group,s results and its performance in different businesses. ... http://www.eurobusinessmedia.com/ceo-direct/sanofi/sanofi-h1-2015-results-interview-with-ceo-olivier-brandicourt?utm_source=ceo-direct&utm_medium=wire Topics ... Q2 results - Performance drivers ...
(Date:7/29/2015)... , July 29, 2015 /PRNewswire/ - BioAmber Inc. (NYSE: ... , the Company,s Chief Financial Officer has resigned.  The ... Chief Financial Officer who retired in December 2014, as ... for a permanent successor.     Andy Ashworth ... Laurin and ensure a smooth transition.  Andy was the ...
(Date:7/29/2015)... (PRWEB) , ... July 29, 2015 , ... ... solutions, today announced its GHS Label Guide . To align chemical container ... (GHS), this guide includes explanations of label components, an example of an accurate ...
(Date:7/29/2015)... ... July 29, 2015 , ... The third Medical Innovation ... combination products , in particular, drug/device combinations. The current system received a score of ... Initiative for Patient Centered Innovation (iPCI) of Fairleigh Dickinson University’s ( FDU ) ...
Breaking Biology Technology:BioAmber Announces Change in Chief Financial Officer 2BioAmber Announces Change in Chief Financial Officer 3Brady Announces a New GHS Label Guide 2Third Medical Innovation Impact Index Issued by Fairleigh Dickinson University’s Initiative for Patient-Centered Innovation (iPCI) 2Third Medical Innovation Impact Index Issued by Fairleigh Dickinson University’s Initiative for Patient-Centered Innovation (iPCI) 3
... a recent BusinessWeek article profiling the significant rise ... point out that it is true product innovation through focused ... confidence and resulting market valuation. , ,While Genentech had revenues ... hit $74.2 billion. , ,This surpasses Amgen's top position of ...
... British are interested in bio and life science investments ... Wisconsin. Meanwhile the University of Wisconsin-Madison is introducing two ... April 30, 2005 Listen to this ... discussed with companies in Madison ...
... Inc. has updated its MailFoundry line of ... on OEM hardware instead of using a Sun platform, the ... as fast as the MailFoundry 1100, according to sales executive ... And the cost, at $2,000, is $500 less. , ,In ...
Cached Biology Technology:Drug innovation beats marketing, patents and mergers 2
ANTI-RAT ADHESION MARKERS, CDs, CYTOKINES, ETC Rat ICAM PE - Mouse IgG1...
Reacts with methylated DNA from plants and vertebrates...
...
Phospho-4E-BP1 (Thr37/46) (236B4) Rabbit mAb Shipping Temperature: Cold Storage Temperature: -20C...
Biology Products: