Navigation Links
Researchers Document First Case of Virgin Birth in Sharks

Researchers have documented the first case of virgin birth in cartilaginous fish, after busting the mystery surrounding the birth of a shark in an aquarium, that had only female sharks which had no contact with a male shark for three years.

The birth of the pup at Omaha's Henry Doorly Zoo, in the US, in December 2001 led to many conclusions including a possible insemination in one of the female sharks in the aquarium.

Female sharks have an organ that can store sperm, but a three-year storage would have been really extraordinary to believe.

The insemination theory still could be believed, but scientists could not imagine asexual reproduction among sharks.

"Because it was even more difficult to imagine asexual reproduction in a shark," New Scientist quoted Paulo Prodohl of Queen's University Belfast in Northern Ireland, as saying.

Researchers at Pew Institute for Ocean Science in the US led by Demian Chapman of the, used a DNA fingerprinting method akin to human paternity tests. The technique was determined to identify the mother.

When they deducted the mother's input from the pups DNA to determine the father, to their surprise there was nothing left.

"In this particular case, after we subtracted the mother's DNA, there was nothing left. It was fantastic," says Prodohl.

The researchers then concluded that the pup had no father and had a virgin birth. This is the first recognized instance of an asexual reproduction in cartilaginous fish. Later, the pup was killed by another fish in the aquarium.


'"/>




Page: 1

Related medicine news :

1. Researchers urge caution in using ear tube surgery
2. Researchers Scale to assess the Severity of Epilepsy in Kids
3. Researchers trick Alzheimers Enzyme
4. Researchers find new HIV hiding place
5. New Hair in 15 Days Could Now Be A Possibility Say Researchers
6. Researchers developed world’s smallest toothbrus
7. Researchers discover receptor cells that can cause epilepsy
8. 15 Anti-SARS Drugs Identified By China-Europe Team of Researchers
9. Researchers reversed the process of memory loss
10. Researchers Identify Key Gene That May Help Brain Treatment
11. Researchers Discover Protein That Causes Malaria
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:12/8/2016)... (PRWEB) , ... December 08, 2016 , ... ... pleased to announce that “Natural Language Processing–Enabled and Conventional Data Capture Methods for ... JMIR Medical Informatics . , Results of the comparative usability study demonstrate ...
(Date:12/8/2016)... ... December 08, 2016 , ... CURE Media Group, the nation’s ... groups, has aligned with Upstage Lung Cancer in efforts to combat lung cancer, announced ... J. Hennessy, Jr said, “CURE Media Group is honored to team up with Upstage ...
(Date:12/8/2016)... , ... December 08, 2016 , ... Premier Fitness Camp ... FIT , the ultimate weight loss and wellness program, at their world headquarters of ... to provide immediate and long-term results to anyone seeking weight loss, personal development, a ...
(Date:12/8/2016)... ... December 08, 2016 , ... Catalent Pharma Solutions, the leading ... consumer health products, today announced that it had joined the Pharmaceutical Supply Chain ... organization to unite pharmaceutical and healthcare companies that share a vision of better, ...
(Date:12/8/2016)... , ... December 08, 2016 , ... California Senate Bill ... payments per workers’ compensation claim in 2013 and 2014, according to CompScope™ Medical ... Institute (WCRI) . , According to the study, medical payments per claim in California ...
Breaking Medicine News(10 mins):
(Date:12/8/2016)... , Dec. 8, 2016   TriNetX ... Nationwide Children,s Hospital signed a membership ... accelerate the development of new cures. ... representing over 57 million patients globally, biopharmaceutical companies ... together to improve protocol design, site selection, patient ...
(Date:12/8/2016)... LAVAL, Quebec , Dec. 8, 2016 /PRNewswire/ ... and TSX: VRX) ("Valeant") today announced positive ... vehicle-controlled clinical study to assess the safety and ... in the treatment of plaque psoriasis. ... adult subjects with moderate to severe psoriasis, IDP-118 ...
(Date:12/8/2016)... , Dec. 8, 2016  EIP Pharma, LLC ... obtained proof-of-mechanism for neflamapimod (previously code named VX-745), ... 2a clinical trials that demonstrated significant Alzheimer,s disease ... (12-week treatment) and Study 303 (6-week treatment) are ... in Alzheimer,s Disease (CTAD) scientific conference in ...
Breaking Medicine Technology: