Navigation Links
Caught in the act: Study probes evolution of California insect
Date:5/15/2014

d Evolutionary Biology at Rice. "These same populations have also evolved barriers to gene flow. We call this process 'speciation with gene flow,' and evolutionary biologists have long wondered if the genetic basis for this process is highly repeatable and if the genes involved are spread out across the whole genome or in a few discrete regions."

To find out whether this was the case, Egan and a dozen co-authors led by University of Sheffield biologist Patrik Nosil conducted four years of detailed genomic and ecological tests. They first had to sequence the genome for T. cristinae and identify which portions of the genome corresponded to particular biological functions. They then collected about 160 T. cristinae from the wild. Samples were collected at several geographic locations and were equally split between the ecotypes on the two host plants.

"We resequenced the genome of each individual that we collected and looked at which genes were differentiated between populations adapted to different host plants," Nosil said. "Because we also conducted an experiment in the field measuring evolution in real time, we gained information on how natural selection is pulling these populations apart."

For example, the team found that many of the genetic differences were reated to the biochemical function of metal ion binding, and metals are known to influence differences in pigmentation and mandible shape between the two T. cristinae ecotypes.

Previous ecological studies have shown that Timema do not migrate long distances. Because of this, the team expected to find evidence of localized gene flow among individuals collected at specific geographic locations. The genomic tests confirmed this, but they also revealed a pattern in the way that natural selection was playing out at each of the localities.

"In particular, we found that there were regions of the genome that exhibited significant differ
'/>"/>

Contact: Jade Boyd
jadeboyd@rice.edu
713-348-6778
Rice University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Caught in the act: Researchers capture key moments in cell death
2. Gorillas caught in the crossfire in the DRC
3. Clot-busters, caught on tape
4. Antibiotic resistance enzyme caught in the act
5. Study by UC Santa Barbara researchers suggests that bacteria communicate by touch
6. Law that regulates shark fishery is too liberal: UBC study
7. New study will help protect vulnerable birds from impacts of climate change
8. Study jointly led by UCSB researcher supports theory of extraterrestrial impact
9. BYU study: Using a gun in bear encounters doesnt make you safer
10. 15-year study: When it comes to creating wetlands, Mother Nature is in charge
11. Pycnogenol (French maritime pine bark extract) shown to improve menopause symptoms in new study
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Caught in the act: Study probes evolution of California insect
(Date:12/22/2014)... 22, 2014  The 2014 Holiday Season may be the ... Intelligence reports that the long anticipated floodgates for consumer ... demand for smart phones, tablets, and wearable mobile devices ... 2.5 billion users with nearly 4.8 billion biometric devices ...
(Date:12/17/2014)... DUBLIN , Dec. 15, 2014 Research and Markets ... of the "Samsung Galaxy S5 - Home Button ... offering. http://photos.prnewswire.com/prnh/20130307/600769 ... the iPhone 5S, Samsung introduces for the first time ...
(Date:12/17/2014)... 16, 2014  Automation is fundamentally transforming the travel experience ... borders. Over the past decade, ePassports, biometric readers, and ... process through border control via eGates and Automated Passport ... seaports, and land borders across the globe. ...
Breaking Biology News(10 mins):First Season of Holiday Shopping with Mobile Biometric Payments Wraps Up With a Present for Biometrics Industry: A Rosy Forecast for More Than 2 Billion Users of 4.8 Billion Mobile Biometric Devices by 2020 2Samsung Galaxy S5 - Home Button Synaptics Fingerprint Sensor Technology Analysis 2Automated Border Control (ABC) Transforms the Global Travel Experience With More Than 2500 ABC eGates and APC Kiosks Deployed In Airports, Seaports, and Land Borders Worldwide 2
... (UM) Rosenstiel School of Marine & Atmospheric Science Professors Shuyi ... Fellows of the American Meteorological Society (AMS), the nation,s leading ... Dr. Bruce Albrecht, who is a Fellow of the ... Award. The honor of Fellow is given to ...
... announced the 12 projects funded in a fourth ... (PIRE) awards. Many of these projects engage scientists ... energy alternatives, as the need for solutions challenges ... Agency for International Development (USAID) today also announced ...
... Texas at Austin have discovered that the lack of a ... neural tube birth defects in developing embryos. It ... dramatically reduces the incidence of neural tube defects, such as ... birth defects. In some populations, folic acid supplementation has decreased ...
Cached Biology News:Univ. of Miami profs Chen and Soden named Fellows of AMS, Albrecht receives AMS Teaching Award 2Univ. of Miami profs Chen and Soden named Fellows of AMS, Albrecht receives AMS Teaching Award 3NSF Supports GlobalNSF supports global research to advance science and engineering for sustainability 2NSF Supports GlobalNSF supports global research to advance science and engineering for sustainability 3NSF Supports GlobalNSF supports global research to advance science and engineering for sustainability 4NSF Supports GlobalNSF supports global research to advance science and engineering for sustainability 5NSF Supports GlobalNSF supports global research to advance science and engineering for sustainability 6NSF Supports GlobalNSF supports global research to advance science and engineering for sustainability 7NSF Supports GlobalNSF supports global research to advance science and engineering for sustainability 8NSF Supports GlobalNSF supports global research to advance science and engineering for sustainability 9NSF Supports GlobalNSF supports global research to advance science and engineering for sustainability 10NSF Supports GlobalNSF supports global research to advance science and engineering for sustainability 11Lack of key enzyme in the metabolism of folic acid leads to birth defects 2
(Date:1/22/2015)... Dr. Greg Leyer of UAS Labs recently was ... Pre-Conference seminar on probiotics in San Diego, CA. , ... conference for health care professionals. This year’s pre-conference seminar was ... in health. Dr. Leyer spoke about the emerging topics and ...
(Date:1/22/2015)... SAN DIEGO , Jan. 22, 2015   ... company, and Sequenom, Inc. (NASDAQ: SQNM ... a development agreement for next generation noninvasive prenatal ... Cypher,s genome interpretation technology, called Mantis™, to advance ...
(Date:12/24/2014)... Dec. 24, 2014  United Therapeutics Corporation (NASDAQ: ... MDT ) has submitted a pre-market approval application ... the use of Medtronic,s SynchroMed ® II implantable ... use with United Therapeutics, Remodulin ® (treprostinil) Injection ...
(Date:12/24/2014)... Louis, Missouri (PRWEB) December 23, 2014 GMO ... biotechnology company, Syngenta, are in the process of being consolidated ... case is In Re: Syngenta AG MIR 162 Corn Litigation, ... District of Kansas. , Management of the Syngenta GMO corn ...
Breaking Biology Technology:Cypher Genomics and Sequenom Announce Development Agreement 2Cypher Genomics and Sequenom Announce Development Agreement 3Cypher Genomics and Sequenom Announce Development Agreement 4United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 3United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 4Carey Danis & Lowe Reports on Syngenta GMO Corn Transfer Order 2
... endured a hard struggle, and somehow survived where other ... same sites and domain names must face harsher realities ... Today without visibility, on e-commerce, Web sites are simply ... the right match, they only clash into the billions ...
... is leading the blog tools market space, has all the ... founders - husband-and-wife team of Ben and Mena Trott - ... and created Moveable Type, arguably the best and most widely ... company name represents the number of days between their birth ...
... agricultural and lawn care pesticides may cause injury to ... to a study conducted by researchers at ... in the May 2004 issue of Environmental Health ... Environmental Health Sciences, National Institutes of Health. , ,In ...
Cached Biology Technology:The mysteries and the future of Web sites 2The mysteries and the future of Web sites 3The mysteries and the future of Web sites 4Six Apart hits its adolescence 2Six Apart hits its adolescence 3Six Apart hits its adolescence 4Six Apart hits its adolescence 5Infertility linked to lawn chemicals by Marshfield Clinic researcher 2
... multicolor analysis in a modern flow cytometer, ... that are differentially labeled with fluorescent probes. ... typically used for cell labeling are broader ... a flow cytometers filters. Thus, the fluorescence ...
... number is a new product ... Cornings product number. If showing ... under the old Sigma-Aldrich number ... for assistance. ID clarifier: rack ...
... ActiveSight, the leading provider of ... design, offers fragment-based screening services to ... screening involves the binding of drug-like ... crystallized protein drug targets, allowing scientists ...
...
Biology Products: