Pesky insects too play ecological role
Washington: Getting rid of pesky insects, such as mosquitoes, ants and roaches may be fraught with adverse consequences, depriving plants of their taste and high yield, suggests a new study.
Specifically, it showed that evening primroses grown in insecticide-treated plots quickly lost, through evolution, defensive traits that helped protect them from plant-eating moths.
These results indicate that once the plants no longer needed their anti-insect defences, they lost these. What`s more, they did so quickly -- in only three or four generations, the journal Science reported.
Anurag Agrawal, professor of ecology and evolutionary biology at Cornell University, who led the study, explained: "We demonstrated that when you take moths out of the environment, certain varieties of evening primrose were particularly successful.
"These successful varieties have genes that produce fewer defences against moths."
Subsequently, the evening primroses seemingly stopped investing energy in their anti-insect defences, which disappeared through natural selection, according to a Cornell statement.
Agrawal said that he was "very surprised" by how quickly this process occurred, and that such surprises "tell us something about the potential speed and complexities of evolution".
"In addition, experiments like ours that follow evolutionary change in real-time provide definitive evidence of evolution."
Besides, oils produced by evening primroses have been used medicinally for hundreds of years and are beginning to be used as herbal remedies.
Agrawal`s insights about pests that attack these plants and about chemical compounds produced by these plants may ultimately be useful to the herbal and pharmaceutical industries.
More from India
More from World
More from Sports
More from Entertaiment
- IAF Mirage fighter plane lands on Yamuna Expressway!
- Kejriwal accuses Centre of trying to rule Delhi through LG
- 'Maggi' under regulatory scanner for excess amount of lead, MSG
- Watch: Michelle Obama's 'Gimme Five' fitness video
- When Subramanian Swamy shocked people at a wedding!
- Expect that Rahul will be Congress president in 2015: Jairam Ramesh
- Mumbaikars join hands to save Pakistani teen with rare illness
- DNA: Analysis of Hurriyat chief Syed Geelani's passport issue
- DNA: Analysis of traffic system of Vancouver, Canada
- Mumbai: Diamond export company denies job to Muslim youth
- Aapke Sitare: Astro prediction for May 21, 2015
- Mirage 2000 fighter jet landing was part of capability demonstration: IAF
- DNA: IAF Mirage 2000 fighter plane lands successfully on Yamuna expressway
- DNA: Osama documents show 'Indian brother in Madinah' financed al Qaeda
- PM Modi's key campaign team member may join Nitish Kumar
- RBSE (rajresults.nic.in) Class 12th science and commerce results 2015: Rajasthan Board Class 12th XII exam results 2015 expected to be announced on May 21
- RBSE (rajresults.nic.in) Class 12th science and commerce results 2015: Rajasthan Board Class 12th XII exam results 2015 to be announced today at 4 PM
- JAC 12th Inter Arts Result 2015: JAC 12th Inter Arts Result 2015 (jharkhandeducation.net) likely to be announced on Thursday May 21 at 1 PM
- CBSE Class 10 Results 2015 to be announced today?
- IAF jet lands on Yamuna expressway
- Check Jharkhand Board jac.nic.in: Class 12th Art Results 2015 declared
- Andhra Pradesh EAMCET results 2015: Andhra Pradesh EAMCET results to be announced on May 21 at www.apeamcet.org
- Log on to apeamcet.org AP EAMCET Results 2015: Andhra Pradesh EAMCET Marks and AP EAMCET Ranks 2015 declared
- Fawad Khan doesn’t want intimate scenes with Sonam Kapoor?
- We hire only non-Muslim candidates, diamond export firm tells Muslim youth
- IPL 2015: Rajasthan Royals vs Royal Challengers Bangalore - As it happened...
- DHSE (dhsekerala.gov.in) 12th Result 2015: Kerala DHSE Class 12th XII exam results 2015 to be announced on May 21
- Is MSG in 'Maggi' noodles harmful for you?
- SSLC (tnresults.nic.in) Tenth 10th Results 2015: Tamil Nadu Board Class 10th X Higher Secondary exam results 2015 to be declared on May 21
- 'IAS officer DK Ravi possibly committed suicide, suffered big loss in real estate business'