Navigation Links
Genetic structure of first animal to show evolutionary response to climate change determined
Date:8/24/2010

Scientists at the University of Oregon have determined the fine-scale genetic structure of the first animal to show an evolutionary response to rapid climate change.

They used a high-throughput sequencing technique called Restriction-site Associated DNA (RAD) tagging to make the discovery.

Their results, which focus on the pitcher plant mosquito, Wyeomyia smithii, are published this week in the journal Proceedings of the National Academy of Sciences (PNAS).

RAD tagging is an effective and straightforward way of barcoding sections of genomic material, much as grocery items are coded at the local supermarket, say the scientists.

"This project demonstrates the power of genomics technologies, which can provide new knowledge about the vast array of Earth's species," says Sam Scheiner, program director in the National Science Foundation (NSF)'s Division of Environmental Biology, which funded the research.

"Although this small mosquito has become the poster child for genetic response to climate change," says William Bradshaw, one of the paper's co-authors, "its evolution during post-glacial invasion of North America has been a question."

Using the RAD-Tag approach, the scientists have demonstrated that post-glacial populations of Wyeomyia smithii originated from a southern Appalachian Mountain refugium after recession of the Laurentide Ice Sheet some 22,000 to 19,000 years ago.

Range expansion into the previously glaciated north proceeded in a sequential, ordered wave rather than by a "hit-or-miss" hopscotch process, the biologists found.

With this detailed information, they will be able to determine the genetic mechanism underlying photoperiod response to rapid climate change--responsible for the correct timing of dormancy, migration, development and reproduction in temperate organisms.

The knowledge will act as a template for research on blood-feeding in mosquito vectors of dengue
'/>"/>

Contact: Cheryl Dybas
cdybas@nsf.gov
703-292-7734
National Science Foundation
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Rare genetic disorder gives clues to autism, epilepsy, mental retardation
2. Genetic Engineering & Biotechnology News reports on growing role of molecular diagnostics
3. Study finds genetic variant plays role in cleft lip
4. Genetic finding implicates innate immune system in major cause of blindness
5. American College of Medical Genetics receives $13.5M NIH contract
6. Clue to genetic cause of fatal birth defect
7. Can genetic information be controlled by light?
8. The American Society of Human Genetics hosts 58th Annual Meeting in Philadelphia
9. Modern genetics vs. ancient frog-killing fungus
10. Genetic based human diseases are an ancient evolutionary legacy
11. Genetic evidence for avian influenza movement from Asia to North America via wild birds
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Genetic structure of first animal to show evolutionary response to climate change determined
(Date:7/25/2014)... people lived on the land now called California, and ... availability of plants they used for food, fuel, tools, ... maintain desired habitat and natural resources. , Frank Lake, ... Station, will lead a field trip to ... Society of America,s 99th Annual Meeting, in Sacramento, Cal. ...
(Date:7/25/2014)... scientists from 25 countries and 35 states will ... the Genetics Society of America (GSA) next week ... conference will feature close to 500 presentations (including ... including gene expression and regulation, functional genomics, chemical ... and a variety of diseases. , Of ...
(Date:7/25/2014)... central nervous system disease that is caused by ... the embryonic phase. Many patients have varying degrees ... retardation. Such problems decrease the patients, functional independence ... Physical Medicine and Rehabilitation Education and Research Hospital, ... SB, using the Pediatric Evaluation of Disability Inventory ...
Breaking Biology News(10 mins):Fire ecology manipulation by California native cultures 2Fire ecology manipulation by California native cultures 3Yeast meeting to showcase latest breakthroughs in genetics and molecular biology 2
... For thousands of years, people have believed that eating ... stronger muscles. Take Milo of Croton, the winner of five ... ancient writers are to be believed, he built his crushing ... day. No modern athlete would go to such extremes, ...
... Early in development infants of many species experience important ... of their mother to start exploring the wider world. ... brain during that turning point. Based on animal ... of attachments in many speciesincluding the conundrum of why ...
... different anti-apoptotic proteins support cancer cell survival via an ... drugs, report Brunelle et al. The study will be ... 2, 2009 print issue of the Journal of ... dependent on one or more anti-apoptotic proteins to avoid ...
Cached Biology News:Moderate amounts of protein per meal found best for building muscle 2Changes in brain chemicals mark shifts in infant learning 2Changes in brain chemicals mark shifts in infant learning 3Chemosensitivity of cancer cells depends on their protein dependency 2
(Date:7/24/2014)... RIDGE, Tenn., July 24, 2014 -- A novel combination ... the Department of Energy,s Oak Ridge National Laboratory an ... for its unusual physical and electrochemical properties. , ... how oxygen affects the surface of a perovskite manganite, ... behavior. The new avenue to understand surface behavior could ...
(Date:7/24/2014)... July 24, 2014  ECC West Africa, LLC (ECC) ... with University College Hospital (UCH) Ibadan Board of ... to finance, design, construct, and operate and maintain a ... . Under the first of the 4-phase project, ... and funding applications. UCH Ibadan intends to finance and ...
(Date:7/24/2014)... Yan, Distinguished Professor of Engineering at the University ... to solve problems in energy engineering, environmental sustainability ... on zeolites, porous rock with a well-defined, crystalline ... is so precisely decided that zeolites can separate ... of an angstrom (one-tenth of a nanometer), making ...
(Date:7/24/2014)... July 24, 2014 Your cell ... in modeling lithium-ion battery storage capacity. , New ... a theoretical model created at Lawrence Livermore ... that predicts how carbon components will perform as ... emphasizes the urgent need for higher-performance batteries. Several ...
Breaking Biology Technology:ORNL study reveals new characteristics of complex oxide surfaces 2ECC Signs a Contract for the Finance, Design, and Construction of a Premier Cancer Institute in Ibadan, Nigeria 2University of Delaware researcher describes new approach for creating organic zeolites 2Getting More Life out of Lithium-ion Batteries 2
... Nov. 25 CAS REGISTRY, the world,s most,authoritative collection ... and inorganic substances. CAS Registry Number(R),1073662-18-6 recently was assigned ... (Photo: http://www.newscom.com/cgi-bin/prnh/20081125/CLTU095 ) , ... ) , The ...
... MNKD ), focused on discovering, developing and commercializing,treatments for ... Piper Jaffray 20th Annual Health Care Conference on Tuesday, December ... Hotel in New York City. , ... live web cast of the,presentation in the Investor Relations section ...
... SGMO ) announced today that Edward Lanphier, ... progress of Sangamo,s ZFP Therapeutic,development programs and an overview ... Tuesday, December 2, 2008 at the Piper Jaffray 20th ... will also update the,financial community on its latest developments ...
Cached Biology Technology:CAS Registers 40 Millionth Substance in CAS REGISTRY(SM) 2Sangamo BioSciences to Webcast Annual Investor and Analyst Briefing and Presentation at Piper Jaffray Health Care Conference 2
... Cellular uptake of long double stranded RNA ... interference in a diverse group of organisms ... RNA interference leads to the inhibition of ... of the target messenger RNA (mRNA). Attempts ...
... Bruker Daltonics and Bruker BioSpins ... for metabolism studies, and analysis of ... ESI-TOF system, an optional Avance NMR ... acquisition, evaluation and statistical analysis for ...
... Tracker w/ OutputCumulates a score of movement counts, ... that it.can track up to 6 subjects at ... be triggered. Can outpt a sync pulse ... Can use animal location and timing information ...
... GEA Diessel fermentation systems for cultivation ... have provided manufacturers of bio-pharmaceutical products maximum ... years. For microbial and cell fermentation 10 ... of dead-leg areas ,*Fully automated control ...
Biology Products: