Navigation Links
Molecular methods are not sufficient in systematics and evolution
Date:6/7/2010

Modern evolutionary systematists often use molecular methods, such like mitochondrial DNA analysis, to differentiate between species and subspecies. These molecular methods are a flashy symbol of modern science cleverly exploited by media to draw interest of public and by laboratory scientists to draw attention of government funding agencies. However, current research indicates that the picture painted by these methods may be false, and only a creative combination of classical field-based ecology, museum-based systematics and DNA-based phylogenetics, can lead to right conclusions. In the last issue of the internationally acclaimed Ornithological Monographs (pages: 90-102), a team of biologists from the Universidad Central de Venezuela, Allegheny College in USA, Seoul National University in South Korea and Centre for Ecological Studies in Poland demonstrate how modern evolutionary biology needs the "old-style" biology in order to explain evolution and systematics of birds.

The team composed of Jorge Perez-Eman, Ronald Mumme, and Piotr Jablonski studied mitochondrial DNA, plumage coloration and behavior of 10 subspecies of a Central and South American warbler the Slate-throated redstart, an inhabitant of montane forests. Mitochondrial DNA analyses indicated that evolution of these birds started over 70 millions years ago, in the Pleistocene, in northern and central areas of modern Mexico. First, the birds rapidly expanded southwards to South America diversifying into several genetically and morphologically different subspecies. Second, about 40-70 million years ago, when today's montane forest types existed at lower elevations, a rapid expansion started producing several morphologically distinct subspecies that differ in the coloration of their bellies from yellow, orange, through red, and in the tail pattern from small to large white patches, but do not differ in the mitochondrial DNA. The researchers believe that during this rapid expansion o
'/>"/>

Contact: SangJin Lee
snulbee@behecolpiotrsangim.org
822-880-8158
Laboratory of Behavioral Ecology and Evolution at Seoul National University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. New molecular regulators of hyperthyroidism and goiter
2. Carnegie Mellon scientists investigate initial molecular mechanism that triggers neuronal firing
3. UC health news: molecular pathway may predict chemotherapy effectiveness
4. New molecular clock from LLNL and CDC indicates smallpox evolved earlier than believed
5. Story ideas from Molecular & Cellular Proteomics
6. Lets talk -- new paradigms in the research of the biomolecular composition of water
7. Scientists unveil structure of molecular target of many drugs
8. Potential new therapeutic molecular target to fight cancer
9. NIH selects LIAI for major study on allergy molecular causes and possible treatments
10. Pennsylvania Hospital surgeon receives grant to develop molecular cardiac surgery
11. Leading cause of death in preemies might be controlled by resetting a molecular switch
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/17/2014)... , Dec. 16, 2014 Research and ... the addition of the "Global Chemical Sensor ... http://photos.prnewswire.com/prnh/20130307/600769 ... the increasing demand for medical sensors in biomedical ... data for quick and correct diagnosis during surgical ...
(Date:12/11/2014)... Research and Markets , ... http://www.researchandmarkets.com/research/9ql3kr/biometrics_market ) has announced the addition of the ... to their offering. One major ... of multimodal biometric systems. Multimodal biometric systems utilize ... verification and identification purposes. This helps to reduce ...
(Date:12/10/2014)... N.C. , Dec. 9, 2014  Valencell, a ... it is seeing a staggering demand from its licensees ... the Company revealed, is not solely coming from fitness ... as well. "A wearable is only as ... result, accuracy is the ultimate driver in long-term mass ...
Breaking Biology News(10 mins):Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2Biometrics Market in India 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2Wearable Technology Products Demand Highly Accurate Biometric Technology 2
... coactivators control the process by which a single gene ... called alternative splicing, said Baylor College of Medicine researchers ... the journal Molecular Cell. "A major question in biology ... at least 120,000 proteins," said Dr. Bert O'Malley, chair ...
... Starvation, malnutrition and re-feeding can have deadly consequences for ... frog. , PhD student Rebecca Cramp from The University ... can't digest food after long periods of starvation, the ... percent more effectively after 3 months without food, than ...
... immunodeficiency virus (HIV), highly active antiretroviral therapy (HAART) ... and non-Hodgkin lymphoma, according to a new study ... of the National Cancer Institute. , Studies of ... increased risks of several cancers, including Kaposi sarcoma, ...
Cached Biology News:Controlling protein diversity 2A frog's life is food for thought 2A frog's life is food for thought 3Antiretroviral therapy may prevent excess risk of some cancers in people with HIV 2
(Date:12/24/2014)... , December 23, 2014 ... Algeria , out today and available for free download ... actors driving change and growth in the sector today. ... scored notable successes has been in developing a homegrown pharmaceutical ... percent local production still remains some way off. A cursory ...
(Date:12/24/2014)... NEW YORK , Dec. 23, 2014 /PRNewswire/ ... study of mazindol in children with attention deficit/hyperactivity disorder ... December 2014 . The paper, titled ... attention deficit/hyperactivity disorder" ( Konofal et al, ... eCollection 2014 ) shows that mazindol might be ...
(Date:12/22/2014)... Dec. 22, 2014 /PRNewswire/ - RepliCel Life Sciences Inc. ... company focused on the development of autologous cell therapies, ... the University of Calgary in conjunction with co-authors from ... further validates the company,s ongoing clinical research using dermal ... pattern baldness. The paper entitled " Hair ...
(Date:12/22/2014)... 2014  ( www.competitivehealth.com ) — Competitive Health is ... review and advocacy service, has signed an agreement to ... discount health services marketplace. 63% of Americans ... they expected to pay. As part of an ongoing ... Savings is pleased to offer medical bill review and ...
Breaking Biology Technology:PharmaBoardroom Releases New Algeria Pharmaceuticals Report 2PharmaBoardroom Releases New Algeria Pharmaceuticals Report 3Redefining ADHD: A New Approach & A Shift of Paradigm in ADHD Therapeutics 2Redefining ADHD: A New Approach & A Shift of Paradigm in ADHD Therapeutics 3Newly Released Peer-Reviewed Publication Further Validates RepliCel's Use of Dermal Sheath Cup Cells to Treat Pattern Baldness 2Newly Released Peer-Reviewed Publication Further Validates RepliCel's Use of Dermal Sheath Cup Cells to Treat Pattern Baldness 3Newly Released Peer-Reviewed Publication Further Validates RepliCel's Use of Dermal Sheath Cup Cells to Treat Pattern Baldness 4Newly Released Peer-Reviewed Publication Further Validates RepliCel's Use of Dermal Sheath Cup Cells to Treat Pattern Baldness 5WellCard Savings Announces CoPatient Medical Bill Review Service for Members 2
... Madison Gas & Electric has released its 2005 ... expanded and updated listings covering 394 organizations. , ,The ... publication, offers an overview of the high-tech firms, professional ... programs in Dane County, as well as an array ...
... Placements: The mechanics of raising capital for your business ... things a company should do is prepare a business ... the private placement memorandum (PPM), the disclosure document that ... company has a good draft of the business plan ...
... the first in a new WTN series that will follow ... next few weeks, we'll focus on finalists in the Governor's ... inordinate amounts of it on rote procedures. For Milwaukee-area general ... five minutes to mark tissue cut out during cancer surgeries ...
Cached Biology Technology:2005 Madison-area tech directory includes more companies, resources 22005 Madison-area tech directory includes more companies, resources 3Due diligence and corporate clean-up 2Due diligence and corporate clean-up 3Due diligence and corporate clean-up 4Vector Surgical hopes to turn frustration into faster surgeries 2Vector Surgical hopes to turn frustration into faster surgeries 3
Evolutionarily conserved signaling intermediate in Toll pathway...
Anti-MMP-25 (Membrane-type MMP-6, Mt6MMP), hinge region; rabbit host...
Sheep polyclonal to Streptomycin ( Abpromise for all tested applications). Antigen: Chemical / Small Molecule: Streptomycin conjugated to BSA....
Anti-ADAM-12 (Meltrin Alpha); amino terminal region; rabbit host...
Biology Products: