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:2/14/2017)... , Feb. 14, 2017  Wake Forest Baptist ... as its new chief executive officer (CEO). Freischlag joins ... John D. McConnell , M.D., who last year ... at the Medical Center, after leading it since 2008. ... full scope of Wake Forest Baptist,s academic health system, ...
(Date:2/10/2017)... Research and Markets has announced ... - Scientific and Commercial Aspects" to their offering. ... Biomarkers ... with therapy for selection of treatment as well for monitoring ... of disease in modern medicine. Biochip/microarray technologies and next generation ...
(Date:2/8/2017)... -- Aware, Inc. (NASDAQ: AWRE ), a leading supplier ... its quarter and year ended December 31, 2016. ... million compared to $6.9 million in the same quarter last ... $0.6 million compared to $2.6 million in the fourth quarter ... was $0.5 million, or $0.02 per diluted share, which compares ...
Breaking Biology News(10 mins):
(Date:2/24/2017)... -- Aethlon Medical, Inc. (Nasdaq: AEMD ), today ... CEO, Jim Joyce . In a ... Bill Gates warned world leaders that a ... weapons. Mr. Gates expressed his concern, which is also ... terrorists have access to the necessary tools to design ...
(Date:2/24/2017)... , Feb. 24, 2017  Driven by ... biotechnology are now the fastest growing categories, finds ... Specialty Actives in Personal Care: Multi-regional Market Analysis ... and management consulting firm Kline. "Biotechnology ... that make them more effective for skin and ...
(Date:2/24/2017)... , ... February 24, 2017 , ... FireflySci, Inc is ... in late 2014, FireflySci had the goal of bringing their powerful cuvette ... to shape the path that FireflySci is going on as they add yet another ...
(Date:2/24/2017)... Corporation (NASDAQ: VWR), the leading global independent provider of product ... its financial results for the fourth quarter and full year ... 4Q16 record quarterly net sales of $1.13 billion, up ... 4Q16 EMEA-APAC segment net sales increased ... net sales increased 2.5%, or down 0.9% on an organic ...
Breaking Biology Technology: