Navigation Links
Scientists use DNA from a museum specimen to study rarely observed type of killer whale
Date:6/19/2013

In a scientific paper published in the journal Polar Biology, researchers report using DNA from tissues samples collected in 1955 to study what may be a new type of killer whale (Orcinus orca).

In 1955, a pod of unusual-looking killer whales stranded on a New Zealand beach and a skeleton was saved in a museum in Wellington. Photographs were also taken but it was almost 50 years before this unique form of killer whale, characterized by a very small white eye-patch and bulbous forehead, was documented alive in the wild.

Scientists have suspected for some time that there might be more than one type of killer whale, a theory supported by recent genetic studies. The so-called "type D" killer whale from New Zealand, however, was not included in previous genetic studies because no tissue samples were available. For the current study, scientist Andrew Foote (University of Copenhagen) extracted DNA from dried tissue and tooth fragments from the New Zealand skeleton, the only known specimen of type D killer whale.

A complete mitochondrial DNA sequence of the type D specimen was compared to samples of 139 killer whales from around the world. From that, Foote estimated that type D separated from other killer whales approximately 390,000 years ago, making it the second oldest branch in the killer whale family tree and possibly a separate subspecies or species. Dramatic changes in global sea level and ice sheet coverage during the Pleistocene may have contributed to the diversification of killer whales.


'/>"/>

Contact: Phillip A. Morin
phillip.morin@noaa.gov
NOAA National Marine Fisheries Service
Source:Eurekalert

Page: 1

Related biology news :

1. Stanford scientists develop gene therapy approach to grow blood vessels in ischemic limbs
2. Queens scientists seek vaccine for Pseudomonas infection
3. Scientists produce eye structures from human blood-derived stem cells
4. American Society of Plant Biologists honors early career women scientists
5. Brandeis scientists win prestigious prize for circadian rhythms research
6. Scientists discover new method of proton transfer
7. Salk scientists open new window into how cancers override cellular growth controls
8. WileyChina.com - Now Featuring Bespoke Pages for China’s Life Scientists
9. Scientists win $2 million to study new pathway in development and maintenance of lymphoma
10. UGA scientists reveal genetic mutation depicted in van Goghs sunflower paintings
11. Genetic mutation depicted in van Goghs sunflower paintings revealed by scientists
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/11/2014)... Researchers have pioneered a revolutionary new way to ... Virtual Finger, allows scientists to move through digital ... using the flat surface of their computer screens. ... orders of magnitude more efficient, saving time, money ... areas of experimental biology. The software and its ...
(Date:7/11/2014)... the normal circumstances, astrocytes participate in normal ... and exhibit therapeutic and repairing effects on ... have found that nerve cells differentiated from ... reduced viability, which produces influences on subsequent ... General Hospital, Hebei United University, China demonstrated ...
(Date:7/11/2014)... Janeiro, Brazil- In the brains of all vertebrates, ... allows an electric or chemical signal to be ... synapses, which are the most abundant type of ... formation is crucial for learning, memory, perception and ... synapses critical for brain function. For instance, ...
Breaking Biology News(10 mins):Virtual finger enables scientists to navigate and analyze complex 3D images 2Blame it on the astrocytes 2
... Dr. Eeva Karjalainen, of the Finnish Forest Research Institute, Metla, ... But not many of us know that there is also ... Forests and other natural, green settings can reduce ... happiness. Forest visits may also strengthen our immune system by ...
... This release is also available in ... also known as angiogenesis, is crucial for sustained tumor ... suppress the growth of these vessels have been available ... detection and quantification of blood vessel growth using nonsurgical ...
... distinguished government scientist Professor Robert (Bob) Watson who becomes ... Chief Scientific Advisor to the Department of Environment, Food ... Professor Watson is recognised for his contributions to scientific ... global warming. Professor Peter Heathcote, Head of the ...
Cached Biology News:Noninvasive MR imaging of blood vessel growth in tumors using nanosized contrast agents 2Noninvasive MR imaging of blood vessel growth in tumors using nanosized contrast agents 3Honorary Fellowship awarded to government Chief Scientific Advisor 2
(Date:7/10/2014)... 10, 2014 OMICS Group’s 5th International ... 18-20 August, 2014 at Double Tree by Hilton Beijing, ... developments in Analytical & Bioanalytical research methods only to ... on this occasion, Dr. Srinubabu Gedela, MD of OMICS ... is a remarkable one in bringing a unique and ...
(Date:7/10/2014)... 10, 2014  Franciscan St. Anthony Health-Crown ... for respiratory monitoring outside the operating room, ... in embracing state-of-the-art patient safety technology. ... breathing and can alert medical caregivers when ... amount of carbon dioxide the patient is ...
(Date:7/10/2014)... 10, 2014 /PRNewswire-iReach/ -- Tute Genomics, the ... announced an agreement with Lineagen, Inc., to ... NextStep Dx PLUS.  Lineagen, focused on ... disorders, currently offers FirstStep Dx PLUS, ... used by healthcare providers as a first-line ...
(Date:7/10/2014)... -- According to the International Atomic Energy Agency ... from terrorists acquiring sufficient quantities of plutonium or ... nuclear explosive device. The IAEA also notes that ... gram-level quantities, which can be challenging to detect ... new study appearing this week in the ...
Breaking Biology Technology:A Critical Review of Analytical Techniques for Improved Living Standards 2A Critical Review of Analytical Techniques for Improved Living Standards 3A Critical Review of Analytical Techniques for Improved Living Standards 4Franciscan St. Anthony Health-Crown Point Underscores Patient Safety Commitment Through Expanded Use of Capnography 2Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 2Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 3Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 4Sensitive detection method may help impede illicit nuclear trafficking 2
... ROCKVILLE, Md., March 9, 2012 EntreMed, Inc. (Nasdaq: ... therapeutics for the treatment of cancer, today reported results ... 31, 2011.   (Logo: http://photos.prnewswire.com/prnh/20010620/ENMDLOGO ) ... $1.9 million compared to $3.7 million for fiscal 2010. ...
... SQUARE, Pa., March 8, 2012  On the occasion of ... announce that interim data from an expanded clinical trial ... for safety and improved quality of life (QOL) previously ... The probiotic microbial strains in the product formulation are ...
... from North Carolina State University have developed the first ... in electronics, opening the door to an array of ... first time that researchers have been able to produce ... in a single oxide material, launching a new era ...
Cached Biology Technology:EntreMed Reports Fourth Quarter and Year-End 2011 Financial Results 2EntreMed Reports Fourth Quarter and Year-End 2011 Financial Results 3EntreMed Reports Fourth Quarter and Year-End 2011 Financial Results 4EntreMed Reports Fourth Quarter and Year-End 2011 Financial Results 5Interim Clinical Trial Results Confirm Safety of Renadyl™, a Probiotic Dietary Supplement for the Support of Healthy Kidney Function 2Interim Clinical Trial Results Confirm Safety of Renadyl™, a Probiotic Dietary Supplement for the Support of Healthy Kidney Function 3Functional oxide thin films create new field of oxide electronics 2
Mouse monoclonal antibody raised against a partial recombinant L3MBTL2. NCBI Entrez Gene ID = L3MBTL2...
Mouse monoclonal antibody raised against a partial recombinant QARS. NCBI Entrez Gene ID = QARS...
96-well format (For processing samples on microplate-size MALDI target plates such as those from Bruker, Shimadzu, Thermo, and PerkinElmer) Packaging: 2 / pack...
... FUNNY SHAKERS are multi-functional mixing devices. Stepping ... is a solid, heavy-duty durable shaker to ... mixing and vortexing in nature. Regulated action ... with digital display to control time, continuous ...
Biology Products: