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:1/22/2015)... 13, 2015  Today, FreeWavz ( www.FreeWavz.com ), the ... campaign on Fundable, https://www.fundable.com/freewavz . FreeWavz will ... capacity to meet customer demand. Logo ... http://photos.prnewswire.com/prnh/20150113/168790 Invented by Dr. ...
(Date:1/22/2015)... Washington , January 20, 2015 Investorideas.com, ... tech stocks, releases video from the CES 2015 (Consumer Electronics ... Apollo Robbins . Apollo shows how easily ... smart wallet, a product of NXT-ID, Inc. (NASDAQ: ...
(Date:1/22/2015)... Infinisource has launched its new NXG series of time clocks ... a higher standard for collecting attendance and labor data and ... installation, touch screen interface and seamless connection to cloud-based iSolved, ... solution for the small to mid-size employer. The ...
Breaking Biology News(10 mins):FreeWavz Launches on Fundable to Drive Speed-to-Market in 2015 2Apollo Robbins Talks about the Illusion of Personal Safety and How Easily Your Wallet is Stolen; If a Wocket Wallet is Stolen the Thief Can't do Anything With it! 2Apollo Robbins Talks about the Illusion of Personal Safety and How Easily Your Wallet is Stolen; If a Wocket Wallet is Stolen the Thief Can't do Anything With it! 3Infinisource's NXG series sets new time clock standard 2
... KNOXVILLE -- Research by a small group of microbiologists ... of the Earth: the realm just beneath the deep ocean ... on our planet. Beth Orcutt, a post-doctoral fellow at ... presented her new findings about this little researched realm today ...
... research studies should not be disclosed to participants without ... of the European Society of Human Genetics today (Monday). ... Policy, Management and Evaluation at the University of Toronto, ... held by many ethicists that individual genetic research findings ...
... Researchers at Rice University, Purdue University and the ... about why some fluids containing polymers -- including saliva ... do not. The findings are published online this ... Study co-author Matteo Pasquali, professor in chemical and biomolecular ...
Cached Biology News:New research into the deep ocean floor yields promising results for microbiologists 2Should the results of individual genetic studies be disclosed to participants? 2Should the results of individual genetic studies be disclosed to participants? 3Answer to saliva mystery has practical impact 2
(Date:1/22/2015)... (PRWEB) January 22, 2015 Controlled Substance ... Alliance, which helps companies check the legal requirements around ... expand to China. , As their international operations ... globally adopting software solutions built as a result of ...
(Date:1/22/2015)... , Nueva Jersey , 22 de enero ... for Biomedical Research abre hoy su llamada a nominaciones ... cuya investigación científica ha hecho, o tiene el potencial ... salud humana. Las nominaciones se aceptarán hasta el 15 ...
(Date:1/22/2015)... CAMBRIDGE, Mass. , Jan. 22, 2015   GenoSpace , ... suite of tools to enable the broad use of genomic, ... today announced the appointment of Michelle Munson , CEO ... independent director. Logo - http://photos.prnewswire.com/prnh/20150122/170713 ...
(Date:12/24/2014)...  United Therapeutics Corporation (NASDAQ: UTHR ) announced ... has submitted a pre-market approval application to the U.S. ... Medtronic,s SynchroMed ® II implantable drug infusion system ... Therapeutics, Remodulin ® (treprostinil) Injection delivered intravenously to ...
Breaking Biology Technology:Global Compliance Service for Controlled Substances to Expand to China 2El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 2El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 3El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 4GenoSpace Expands Board with Appointment of Michelle Munson 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 3United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 4
... the consolidating pharmaceutical industry began. For those of you who ... were talking about the hostile bid by French pharmaceutical giant ... Aventis . , ,This would create a real major ... would create the worlds third-largest pharmaceutical company after No. 1 ...
... response, it looks as if Small Tree Communications ... group of former Cray and SGI employees to brave the ... Grove Heights, Minn.-based business, with ties to legacy Chippewa Valley ... breakthrough product for Apple Computers enterprise customers who need enhanced ...
... Madison, Wis., -- Broadjam Inc. , a Madison-based provider ... publishers, has been selected to create and implement a ground-breaking ... . , ,In an intriguing move from an industry often ... onto the Internet in time for its annual awards show ...
Cached Biology Technology:The Industry Impact of Two Big Pharmas Mating 2The Industry Impact of Two Big Pharmas Mating 3The Industry Impact of Two Big Pharmas Mating 4The Industry Impact of Two Big Pharmas Mating 5The Industry Impact of Two Big Pharmas Mating 6The Industry Impact of Two Big Pharmas Mating 7Former SGI/Cray Team Develops Products for G5 Platform 2Former SGI/Cray Team Develops Products for G5 Platform 3
The Hybrid Hunter Yeast Two-Hybrid System uses the activation of reporter genes to indicate positive protein-protein interactions. Two reporters are used an auxotrophic marker and lacZ....
Request Info...
Sprague Dawley rats, 7-8 weeks of age, mixed gender; collected by exsanguination in Alsever's solution at 1:2 dilution...
2-min, single-step add-mix-measure assay for luciferase expression and HTS in mammalian cells. Linear detection range: 2 fg to 46 ng luciferase....
Biology Products: