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

ences between populations from host plant 1 and host plant 2, regardless of where the individuals were collected," Nosil said.

That suggested that evolution might be occurring in the same repeatable fashion at each location. To further test this, the team devised an experiment to gather genomic data from individuals that were actively under selection.

"We took individuals from a mixed population of the striped versus the no-striped ecotype, and we transplanted them back into nature onto the two host plants in five different sets," Egan said. "We allowed them to go an entire generation, and then we resampled those populations, resequenced the genome of the survivors and compared those to the ancestors that we started with a year before. We tried to match up the allele frequency shifts in this experiment with the genome-level differentiation that we observed in our genome-resequencing populations. And what we found was that many of the regions that were highly differentiated in nature were the exact same regions that were responding to our selection experiment."

Egan said it was previously impossible to conduct this kind of study because of the expense of genomic tests. Though the genomes of many plant, animal and microbial species have been sequenced over the past decade, most of those are model organisms. Scientists use model organisms to study critical biological processes, but Egan said the study of nonmodel organisms is often the key to ecological questions, including those related to how the environment influences natural selection and speciation.

"The world of genomics is beginning to open up for people like me who don't study model organisms," Egan said. "This is allowing us to address, in new ways, questions that Darwin posed over 150 years ago."


'/>"/>

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:7/23/2014)... habit of getting tangled and forming knots. Scientists study ... to disentangle them (e.g. useful for gene sequencing techniques). ... Studies (SISSA) in Trieste and his team have been ... and their dynamics. In their latest paper, just published ... with Marco Di Stefano, first author and PhD student ...
(Date:7/23/2014)... available in German . ... for orientation, some of which might be very different ... polarization pattern produced by sunlight in the atmosphere to ... Planck Institute for Ornithology in Seewiesen, Germany, and Queen,s ... a night active mammal, the greater mouse-eared bat, has ...
(Date:7/23/2014)... Currently, no cure exists for Alzheimer,s disease, the ... Americans. But scientists are now reporting new progress ... cancer treatment, that shows promise as a potential ... ACS, Journal of Medicinal Chemistry . , ... that in a healthy brain, the protein known ...
Breaking Biology News(10 mins):Bats use the evening sky's polarization pattern for orientation 2
... Anthropogenic CO 2 emissions, in addition to causing ... them to turn progressively acidic. This change has severe ... in the latest edition of the journal Science ... of the Earth,s oceans has undergone profound changes, although none ...
... close proximity are substantially more different genetically than humans ... today in PLoS Genetics . The study suggests ... use in chimpanzee conservation, with the potential to identify ... the provenance of a sample of bush meat. ...
... a unique part of the animal kingdom, corals have ... Great Barrier Reef. Scientists from the Australian Institute of ... reproductive strategy in corals, adding another dimension to our ... published today in the prestigious international journal Science ...
Cached Biology News:Oceans acidifying faster today than in past 300 million years 2Nearby chimpanzee populations show much greater genetic diversity than distant human populations 2Nearby chimpanzee populations show much greater genetic diversity than distant human populations 3Breaking up isn't hard to do -- the secret lives of corals on dark and stormy nights 2
(Date:7/22/2014)...   BioTE Medical , a leading provider ... pellets, today announced the addition of Dr. ... Rouzier is joining the BioTE Medical Advisory Board ... Rouzier was residency trained in Family Medicine and ... certified emergency physician still practicing at a large ...
(Date:7/22/2014)... (PRWEB) July 22, 2014 CTD Holdings, ... the pharmaceutical, medical device, cosmetics, and other markets, announced ... with a group of qualified private investors led by ... , The transaction involved the signing of ... 1,725,000 shares of Common Stock at a price per ...
(Date:7/22/2014)... Rice Lake Weighing Systems ... NCSL International Workshop and Symposium July 28-31 in ... pressure instrumentation, OIML M1 weights, precision lab weights, ... sets, Essential Weights™. , NCSL International was formed ... solving the common problems faced by measurement and ...
(Date:7/22/2014)... (PRWEB) July 22, 2014 Two new ... Board of Directors at its annual Shareholders Meeting on ... Information Officer of The PFM Group, and Stephen T. ... Center also announced the election of Michael A. DiPiano, ... Vice Chair and Richard P. Jaffe, Esq., of Duane ...
Breaking Biology Technology:Dr. Neal Rouzier Joins BioTE Medical 2Dr. Neal Rouzier Joins BioTE Medical 3CTD Holdings Closes $1.725 Million Private Placement 2CTD Holdings Closes $1.725 Million Private Placement 3Rice Lake Weighing Systems Showcases Metrology Solutions for the 2014 NCSL International Workshop & Symposium 2Two New Members Elected to University City Science Center Board of Directors 2Two New Members Elected to University City Science Center Board of Directors 3
... average 2006 super bowl commercial is unattainable for most ... for small business. , ,Using an Internet-based advertising agency ... a comprehensive TV advertising campaign in less than a ... You can purchase a pre-packaged ad from their ad ...
... University of Wisconsin-Madison's undergrad engineering contest was swept this ... solar energy collector that concentrates the sun's rays. , ... Friday in both the Schoofs Prize for Creativity and ... the mirrors that many current solar systems use to ...
... Quad Graphics, a printer of magazines, catalogs, books, direct ... tools for clients into a new business unit called ... Jaeger, who also serves as Quad Graphics' vice president ... QuadSystems is backed by the capabilities of 260 corporate ...
Cached Biology Technology:Local TV advertising - Super Bowl vs. super bargain 2Local TV advertising - Super Bowl vs. super bargain 3Local TV advertising - Super Bowl vs. super bargain 4Concentrated solar energy project wins Innovation Days prizes 2
... microRNA expression profiling and built on ... on-chip synthesis platform. These microarrays are ... microRNA Expression Profiling Service. ... Microarray contains all known maize microRNAs ...
... Agilent 6850 Networked GC is an excellent choice ... of a standard dual-channel GC, this one-channel workhorse ... in the space of one. You get all ... GC analyses in an instrument that has the ...
... The 6820 GC system combines world-class ... Chemical QA/QC software, Agilents world-renowned support and ... consumables and supplies--a combination that lets you ... decisions based on dependable data. The Agilent ...
... In the six short years since publication ... John Walkers widely acclaimed Protein Protocols Handbook, ... in protein biochemistry. In recognition of the ... the rapid evolution of new methodologies directed ...
Biology Products: