Navigation Links
First evidence of plants evolving weaponry to compete in the struggle for selection
Date:3/19/2014

Rutting stags and clawing bears are but two examples of male animals fighting over a mate, but research in New Phytologist has uncovered the first evidence of similar male struggles leading to the evolution of weaponry in plants.

The team, led by Dr. Andrea Cocucci from the Instituto Multidisciplinario de Biologia Vegetal of Argentina, studied a species of milkweed (Apocynaceae), found in tropical climates. While plants do not mate like animals, but rather reproduce via pollinators such as insects or birds, competition between individuals to exploit those pollinators can result in confrontation between the plants.

Milkweed reproduce by hooking sacs of pollen grains, known as pollinia, to the bodies of birds and other pollinators, which can be unwittingly dropped into another flower to complete pollination.

It is possible for multiple pollinarium to become entangled together due to the limited number of attachment points on the pollinator, and this Dr. Cocucci's team believe, is the source of confrontation.

The team studied the South America milkweed genus Oxypetalum and found horn-like structures on the pollinia sacs which have no obvious biological use. The paper suggests that these horns are used to prevent the sacs from being hooked together with pollinia from other parent plants.

"Our results suggest that neither self-propulsion nor well-developed sensory perception are required for sexual selection to take place through intrasexual struggles," said Dr. Cocucci. "Apparently, only physical contact is enough to influence the mating success of competitors and to promote the evolution of defensive and attack weaponry."


'/>"/>

Contact: Ben Norman
Sciencenewsroom@wiley.com
44-012-437-70375
Wiley
Source:Eurekalert  

Page: 1

Related biology news :

1. UChicago and MBL announce first recipients of Lillie Awards for Collaborative Research
2. First animals oxygenated the ocean, study suggests
3. First look at how Staphylococcus cells adhere to nanostructures could help fight infections
4. Research reveals first glimpse of brain circuit that helps experience to shape perception
5. First-of-its-kind web portal to bolster research and treatment for rare diseases
6. First biological marker for major depression could enable better diagnosis and treatment
7. First-ever book on Mekong rattan species aims to promote sustainable practices
8. First 3-D movies of living sperm
9. Nanomotors are controlled, for the first time, inside living cells
10. Intervention in first 1,000 days vital to fulfilling childhood potential
11. Where do lizards in Qatar live? First distribution maps for the state
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
First evidence of plants evolving weaponry to compete in the struggle for selection
(Date:2/1/2016)... 1, 2016  Wocket® smart wallet ( www.wocketwallet.com ) announces the launch ... Joey Fatone . Las Vegas , where Joey ... --> Las Vegas , where Joey appeared at the ... new video ad was filmed at the Consumer Electronics Show (CES2016) in ... booth to meet and greet fans. --> ...
(Date:1/25/2016)... -- Glencoe Software, the world-leading supplier of image data management ... the data management solution OMERO Plus for the newly ... Photo - http://photos.prnewswire.com/prnh/20160125/325328LOGO ... Phenotypic analysis measures the characteristics and behavior of cells, ... such as health and disease, the presence or absence ...
(Date:1/20/2016)... -- A market that just keeps on growing. Molecular ... in genomics knowledge. Learn all about it in this ... dynamic trends are pushing market growth and company valuations. ... - pathogen evolution - next generation sequencing - emergence ... of the role of genetic material in Disease and ...
Breaking Biology News(10 mins):
(Date:2/4/2016)... , Feb. 4, 2016 Sinovac Biotech ... a leading provider of biopharmaceutical products in ... of its board of directors received on February 4, ... 2016, from a consortium comprised of PKU V-Ming ( ... Biomedicine Co., Ltd., CICC Qianhai Development ( Shenzhen ...
(Date:2/3/2016)... , Feb. 3, 2016  Discovery Laboratories, Inc. ... on developing aerosolized KL4 surfactant therapies for respiratory ... has approved an inducement award as a component ... its newly appointed President and Chief Executive Officer.  ... Committee on February 1, 2016 and granted as ...
(Date:2/3/2016)... ... February 03, 2016 , ... Aerocom, a world-leading supplier ... the North American healthcare market. , Aerocom Healthcare, LLC will be based in ... will provide new pneumatic tube systems or expand existing systems within the U.S. ...
(Date:2/3/2016)... , Feb. 3, 2016  Today, Symphony Technology ... AlphaImpactRx , a leading provider of primary research ... to IMS Health , a global information and ... offerings, capabilities and technologies will be integrated into IMS ... global primary market research capabilities. ...
Breaking Biology Technology: