HOME >> BIOLOGY >> NEWS
Natural selection's fingerprint identified on fruit fly evolution

Researchers at the University of Rochester have produced compelling evidence of how the hand of natural selection caused one species of fruit fly to split into two more than 2 million years ago. The study, appearing in today's issue of Nature, answers one of evolutionary biologists' most basic questions--how do species divide--by looking at the very DNA responsible for the division. Understanding why certain genes evolve the way they do during speciation can shed light on some of the least understood aspects of evolution.

"The study of speciation has a reputation for wild speculation because every time we find a curious genetic element, we suspect it of causing speciation," says Daven Presgraves, lead author on the study and postdoctoral fellow at the University. "We know embarrassingly little about a core process in evolutionary biology, but now we've nailed down the exact sequence of a gene that we know was involved in keeping two species separated. We can see that it was natural selection that made the gene the way it is."

The study breaks ground in two ways: First, it's the first time that a gene known to be involved in speciation has had its DNA fully revealed.

Presgraves and colleagues found 20 regions that differed on the chromosomes of two species of fruit flies that were estimated to have diverged in evolution 2.5 million years ago--fairly recently in evolutionary terms. He then needed to find a gene in one of those regions that was responsible for preventing successful reproduction between the two species. If the species could reproduce, then they could swap genes back and forth and thus would not be truly separate species. Something would have to prevent the transfer of genes, and in the case of Presgraves' fruit flies, that something was the proclivity for hybrid larvae to die before maturing into adults.

He found his gene, called Nup 96, that always prevented a hybrid of the two species from living to reproduce, and he se
'"/>

Contact: Jonathan Sherwood
Jonathan.Sherwood@Rochester.edu
585-273-4726
University of Rochester
12-Jun-2003


Page: 1 2 3

Related biology news :

1. Natural mineral locks up carbon dioxide
2. Naturalists of the Isthmus of Panama
3. Natural selection at work in genetic variation to taste
4. Natural, man-made mix promises biggest landscape plant growth
5. Natural enemies help scientists untangle tropical forest food webs
6. Natural killer cellers are made, not born
7. Natural selection in a nutshell
8. Natural fat compound may be basis for new class of drugs targeting obesity
9. Natural hormone could reverse heart damage
10. New biography details adventures of Fritz Muller, A Naturalist in Brazil
11. UC Riversides David Reznick receives 2003 E. O. Wilson Naturalist Award

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Natural selection fingerprint identified fruit fly evolution

(Date:7/8/2015)... NEW YORK , July 8, 2015 /PRNewswire/ ... today announced BD & Guidepoint Mentor, a ... access to Guidepoint,s expert network services. ... cutting-edge technologies to improve healthcare delivery and outcomes and, ... each start-up entrepreneur will be able to directly engage ...
(Date:7/7/2015)... 30, 2015 Research ... addition of the "Capacitive Fingerprint Sensors Patent ... To this date, fingerprint sensing technology is the ... sensors are well developed. This patent landscape focuses ... The domain of capacitive fingerprint sensors is ...
(Date:7/2/2015)... DUBLIN , June 25, 2015 ... has announced the addition of the "Natural ... Hybrid), Technologies (Recognition, IVR, OCR, Pattern & Image ... to their offering. The key vendors ... Google, HP, IBM Corporation, Microsoft Corporation, NetBase Solutions, ...
Breaking Biology News(10 mins):BD and Guidepoint Team to Connect Healthcare Start-up Companies With Business and Scientific Experts 2BD and Guidepoint Team to Connect Healthcare Start-up Companies With Business and Scientific Experts 3Worldwide Capacitive Fingerprint Sensors Patent Landscape Market Report 2015-2020 - Main IP Holders include Seiko Epson, AuthenTec, Sony and STMicroelectronics 2Natural Language Processing Market by Type (Rule-Based, Statistical, and Hybrid), Technologies (Recognition, IVR, OCR, Pattern & Image Recognition) - Worldwide Forecast to 2020 2
(Date:7/31/2015)... ... July 31, 2015 , ... R-Biopharm ... quantification of partially hydrolyzed gluten in foods, has been accepted by AOAC International ... “Partially Hydrolyzed Gluten in Fermented Cereal-Based Products by R5 Competitive ELISA,” based on ...
(Date:7/30/2015)... Texas (PRWEB) , ... July 30, 2015 , ... The ... and in-depth study on the current state of the global Propanol market with a ... Sinopec, CNPC, BASF, Eastman, Dow, Carboclor, Mitsui Chemicals, Oxea, ISU Chemical, Sanofi, Royal Dutch ...
(Date:7/30/2015)... ISN improves the efficiency and effectiveness of contractor management systems. ISN,s online contractor management platform, ... 80 countries. ... ... Over 60,000 Worldwide Customers In More Than 80 Countries ... Dallas, TX , ISN has additional offices in Calgary , ...
(Date:7/30/2015)... ... July 30, 2015 , ... GEA's Pony™ NS2006L ... continuous operation up to 1500 bar. The sanitary design gauge of the NS2006L ... contamination. , The Pony™ NS2006L homogenizer is an ideal solution for the processing ...
Breaking Biology Technology:RIDASCREEN® Competitve Gliadin Receives AOAC Official First Action Status 2Global Propanol Market Technical Data and Manufacturing Analysis 2020 2Global Propanol Market Technical Data and Manufacturing Analysis 2020 3ISN Reaches Over 60,000 Worldwide Customers 2ISN Reaches Over 60,000 Worldwide Customers 3GEA Announces the Pony™ NS2006L… a Self-contained, High Pressure Lab Homogenizer for Product Development Ensuring Maximum Efficiency and Safety 2
Cached News: