Navigation Links
Study uncovers new evidence on species evolution
Date:5/15/2014

A study involving Simon Fraser University researchers and published today in the journal Science has found evidence for the genomic basis of how new species evolve, in adapting to different environments.

Researchers studying an insect known as the walking stick (genus Timema) determined that the process of "speciation" happened in association with the use of different host plants. They also determined that across many populations of the insect, those on one host plant are diverging, genetically, from the populations on another host plant, a process they call "parallel speciation."

"Parallel speciation is important because it is like replication in a scientific study - it tells you whether a pattern and process are repeatable, which lends credence and statistical rigor to the causes," says SFU biology professor Bernard Crespi, whose former PhD student, Patrik Nosil, led the research. Nosil is now a professor at the U.K.'s University of Sheffield.

"From this we can learn, more effectively than in systems where speciation processes happen only once, how new species arise."

The work involved experiments in combination with genome sequencing of populations from two host plants. The sets of individual walking sticks were put on different host plants to test directly for natural selection's role in speciation.

Whole-genome data was obtained, which allowed inference of which genes were associated with speciation processes. "This tells you about the roles of natural selection, and how many genes are involved, in speciation," Crespi notes.

The team's work extends numerous earlier studies by using whole genomes on a large scale, and conducting experiments to validate the roles of natural selection in speciation.

"The combination of whole genomes, and experiments, is unprecedented in speciation studies," says Crespi, adding that future work will involve determining what specific genes are involv
'/>"/>

Contact: Bernard Crespi
crespi@sfu.ca
778-782-3533
Simon Fraser University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Study by UC Santa Barbara researchers suggests that bacteria communicate by touch
2. Law that regulates shark fishery is too liberal: UBC study
3. New study will help protect vulnerable birds from impacts of climate change
4. Study jointly led by UCSB researcher supports theory of extraterrestrial impact
5. BYU study: Using a gun in bear encounters doesnt make you safer
6. 15-year study: When it comes to creating wetlands, Mother Nature is in charge
7. Pycnogenol (French maritime pine bark extract) shown to improve menopause symptoms in new study
8. Crystal structure of archael chromatin clarified in new study
9. EU-funded study underlines importance of Congo Basin for global climate and biodiversity
10. University of Houston study shows BP oil spill hurt marshes, but recovery possible
11. Study demonstrates cells can acquire new functions through transcriptional regulatory network
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/15/2014)... biophysics textbook and it describes how life functions and ... into biological systems and provides an understanding of the ... how our genes make proteins that control the dynamics ... an organism. It quantifies the principles of life and ... on both large and small scales. The book is ...
(Date:10/15/2014)... 2014 NXT-ID, Inc. (NASDAQ: NXTD and ... the growing mobile commerce market releases photos and video of the ... Monday October 13 th . Gino Pereira ... and angel investor Mr. Chad A. Verdi rang the ... thanked his investors and employees "for their work and dedication in ...
(Date:10/14/2014)... shows SIRT6—a protein known to inhibit the growth ... skin cancers by turning on an enzyme that increases ... Previously considered protective, SIRT6 is part of a family ... stability and prevent some of the genetic flaws associated ... lead to cancer. This study, in the journal,s October ...
Breaking Biology News(10 mins):New book about life as seen from physics 2Photo Release: NXT-ID Inc. Rings Opening Bell of the NASDAQ Stock Market October 13th 2Photo Release: NXT-ID Inc. Rings Opening Bell of the NASDAQ Stock Market October 13th 3Two-faced gene: SIRT6 prevents some cancers but promotes sun-induced skin cancer 2
... Institute of New York University (NYU-Poly) and the NYU ... their lab that is five times more efficient in ... vectors. This novel complex is a peptide-polymer hybrid, assembled ... to carry DNA into cells. Results of ...
... The same tiny cellulose crystals that give trees and ... now been shown to have the stiffness of steel. ... new class of biomaterials with wide-ranging applications, such as ... precise models based on the atomic structure of cellulose ...
... Supramolecular chemistry, aka chemistry beyond the molecule, in ... by non-covalent bonds, is just beginning to come ... Metal-organic frameworks (MOFs) are commanding much of the ... but a new player has joined the field ...
Cached Biology News:Researchers engineer a hybrid 5 times more effective in delivering genetic material into cells 2Cellulose nanocrystals possible 'green' wonder material 2Cellulose nanocrystals possible 'green' wonder material 3SOFS take to water 2SOFS take to water 3
(Date:10/20/2014)... October 20, 2014 OncLive® ... Kimmel Cancer Center at Thomas Jefferson University has ... Through the Strategic Alliance Partnership program, the Sidney ... collaborate to raise awareness of the Center’s cutting-edge ... other projects. Clinicians and other health care professionals ...
(Date:10/19/2014)... OCTOBER 20-22, 2014: The 9th ... will take place at the Congress Center ... is now available at http://www.abim.ch . ... organizations from all over the globe will ... latest products and developments on the world ...
(Date:10/19/2014)... (PRWEB) October 19, 2014 The Asia-Pacific ... Analytics market in Asia-Pacific with analysis and forecast of ... million in 2014 to $208 million by 2019, at ... 2014 to 2019. , Browse through the TOC of ... idea of the in-depth analysis provided. It also provides ...
(Date:10/19/2014)... 2014 According to market research ... WLAN Controllers; Wireless gateways)]- Global Advancements, Forecasts and ... global Outdoor Wi-Fi market with analysis and forecasting ... also identifies the drivers and the restrains for ... opportunities and challenges. , Browse 65 market data ...
Breaking Biology Technology:Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 2Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 3The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 2The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 3The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 4Outdoor Wi-Fi Market (by Access Points, WLAN Controllers, Wireless gateways) Expected to Cross $37.2 Billion by 2018 - New Report by MarketsandMarkets 2Outdoor Wi-Fi Market (by Access Points, WLAN Controllers, Wireless gateways) Expected to Cross $37.2 Billion by 2018 - New Report by MarketsandMarkets 3Outdoor Wi-Fi Market (by Access Points, WLAN Controllers, Wireless gateways) Expected to Cross $37.2 Billion by 2018 - New Report by MarketsandMarkets 4
... N.J., Dec. 31 Pharmasset, Inc.,(Nasdaq: VRUS ... developing and commercializing novel drugs to treat viral,infections, ... ended,September 30, 2007. Pharmasset reported a net loss ... per share, as compared to a net loss,attributable ...
... GATOS, Calif., Dec. 31 Three Palm ... that it has received 510(k) clearance,from the ... its WorkstationOne(TM),Breast Imaging Workstation. WorkstationOne is intended ... images, and was developed with,the goal of ...
... (NYSE: MYL ) today,announced that Mylan Pharmaceuticals ... and Drug Administration (FDA) for its Abbreviated New ... Balsalazide Disodium Capsules are the generic version ... of approximately,$130.9 million for the 12 months ending ...
Cached Biology Technology:Pharmasset Reports Fiscal Year End 2007 Financial Results 2Pharmasset Reports Fiscal Year End 2007 Financial Results 3Pharmasset Reports Fiscal Year End 2007 Financial Results 4Pharmasset Reports Fiscal Year End 2007 Financial Results 5Pharmasset Reports Fiscal Year End 2007 Financial Results 6Pharmasset Reports Fiscal Year End 2007 Financial Results 7Pharmasset Reports Fiscal Year End 2007 Financial Results 8Pharmasset Reports Fiscal Year End 2007 Financial Results 9
... The MX80 Series of positioning ... linear motor, ballscrew, leadscrew, micrometer, and ... construct high performance, cost-effective multi-axis systems. ... cross-roller bearings, encoder resolutions down to ...
...
... negatively supercoiled DNA in presence of EDTA ... of supercoiling on transcription in vitro , ... the degree of supercoiling of naturally occurring DNA ... length by only one base-pair , Increasing ...
Required to perform reference file generation, flatfield calibration and performance verification processes on the GSD-501...
Biology Products: