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:4/29/2016)... ... April 29, 2016 , ... In its efforts of bringing quality senior care ... franchise development and expansion as it welcomes Ferdie Vasquez of the new 1Heart Caregiver ... his 32 years of working in various industries. He had been a Franchise ...
(Date:4/28/2016)... ... 2016 , ... Sublime Beauty® is offering a special deal on its webstore. , Buy 1 ... is applied to the product with lesser value. In addition, a free bonus of ... more in products. , "So many women (men, too) love our products and get good ...
(Date:4/28/2016)... (PRWEB) , ... April 28, 2016 , ... ProText Layouts ... Final Cut Pro X . With ProText Layouts, video editors can create ... to match the length and scale of texts. Creating text-based videos have never ...
(Date:4/28/2016)... ... , ... Head Over Heels Athletic Arts’ gymnast, Brooklyn Varize, has qualified to ... at the University of Montana on April 28-May 1. Varize will compete on Saturday ... order to qualify, Varize needed to place top seven all-around in her respective age ...
(Date:4/28/2016)... ... 2016 , ... The ARRS 2016 Annual Meeting ... from around the globe who attended a week’s worth of cutting-edge scientific presentations, ... included the introduction of the 2016 ARRS Distinguished Educator, Dr. Gerald F. Abbott, ...
Breaking Medicine News(10 mins):
(Date:4/28/2016)... 2016 Treato , the ... announced today that it has been named a Cool ... in Life Sciences, 2016, Stephen Davies , ... focuses on life-science- oriented analytics, algorithms and smart machine ... doctors, confirm medication ingestion, and analyze unstructured information.   ...
(Date:4/28/2016)... 28, 2016 Oramed Pharmaceuticals Inc. (NASDAQ: ... company focused on the development of oral drug delivery systems, ... PIONEERS 2016 conference, presented by Joseph Gunnar & ... New York . Nadav Kidron , CEO ... Presentation Details:   PIONEERS 2016, ...
(Date:4/28/2016)... TapImmune,Inc. (TPIV), a clinical-stage immune-oncology company ... and vaccines for the treatment of cancer & metastatic disease, ... Growth Capital Expo to be held on May 3 ... in Las Vegas, Nevada.  The Company presentation will be ... by Dr. John N. Bonfiglio a TapImmune Board ...
Breaking Medicine Technology: