Featured Research

from universities, journals, and other organizations

How Did Bilaterally Symmetric Flowers Evolve From Radially Symmetric Ones?

Date:
October 5, 2006
Source:
University of Chicago Press Journals
Summary:
How did bilaterally symmetric flowers evolve from radially symmetric ones? To address this important question, geneticists Francisco Perfectti and Juan Pedro M. Camacho, and ecologist José M. Gómez (Universidad de Granada, Spain) explored how different flower shapes affected plant fitness in natural populations of Erysimum mediohispanicum, a Mediterranean herb.

How did bilaterally symmetric flowers evolve from radially symmetric ones? To address this important question, geneticists Francisco Perfectti and Juan Pedro M. Camacho, and ecologist José M. Gómez (Universidad de Granada, Spain) explored how different flower shapes affected plant fitness in natural populations of Erysimum mediohispanicum, a Mediterranean herb. Their findings will be published in the October issue of The American Naturalist.

Related Articles


The researchers found that plants bearing bilaterally symmetrical flowers were more visited by pollinators and had higher fitness, measured by both the number of seeds produced per plant and the number of seeds surviving to the juvenile stage, than plants with radially symmetric flowers.

"This study reveals that natural selection can play a key role in the evolution of flower bilateral symmetry," says Camacho. "Our data also suggest that it is possible to understand the evolution of complex forms by means of microevolutionary analyses, as complementary tools to those coming from developmental genetics."

Founded in 1867, The American Naturalist is one of the world's most renowned, peer-reviewed publications in ecology, evolution, and population and integrative biology research. AN emphasizes sophisticated methodologies and innovative theoretical syntheses--all in an effort to advance the knowledge of organic evolution and other broad biological principles.

José M. Gómez, Francisco Perfectti, and Juan Pedro M. Camacho, "Natural selection on Erysimum mediohispanicum flower shape: insights into the evolution of zygomorphy," The American Naturalist 167:10.


Story Source:

The above story is based on materials provided by University of Chicago Press Journals. Note: Materials may be edited for content and length.


Cite This Page:

University of Chicago Press Journals. "How Did Bilaterally Symmetric Flowers Evolve From Radially Symmetric Ones?." ScienceDaily. ScienceDaily, 5 October 2006. <www.sciencedaily.com/releases/2006/10/061002214833.htm>.
University of Chicago Press Journals. (2006, October 5). How Did Bilaterally Symmetric Flowers Evolve From Radially Symmetric Ones?. ScienceDaily. Retrieved October 30, 2014 from www.sciencedaily.com/releases/2006/10/061002214833.htm
University of Chicago Press Journals. "How Did Bilaterally Symmetric Flowers Evolve From Radially Symmetric Ones?." ScienceDaily. www.sciencedaily.com/releases/2006/10/061002214833.htm (accessed October 30, 2014).

Share This



More Fossils & Ruins News

Thursday, October 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Dracula's Dungeon May Have Been Found in Turkey

Dracula's Dungeon May Have Been Found in Turkey

AP (Oct. 29, 2014) — Historians think they may have discovered a dungeon in Turkey where the Romanian prince who inspired Count Dracula was once held captive. (Oct. 29) Video provided by AP
Powered by NewsLook.com
Study Doesn't Prove Megalodons Are Extinct, Never Needed To

Study Doesn't Prove Megalodons Are Extinct, Never Needed To

Newsy (Oct. 27, 2014) — How and why a study about when the giant prehistoric shark Megalodon went extinct got picked up as "proof" that it is. Video provided by Newsy
Powered by NewsLook.com
One-of-a-Kind BMW 507 Boat Found After 6 Decades

One-of-a-Kind BMW 507 Boat Found After 6 Decades

Buzz60 (Oct. 27, 2014) — BMW made just one BMW 507 boat, but it was lost for decades until a young man found and restored it. TC Newman (@PurpleTCNewman) shows the gorgeous boat! Video provided by Buzz60
Powered by NewsLook.com
Deep Sea 'mushroom' Could Be Early Branch on Tree of Life

Deep Sea 'mushroom' Could Be Early Branch on Tree of Life

Reuters - Innovations Video Online (Oct. 24, 2014) — Miniature deep sea animals discovered off the Australian coast almost three decades ago are puzzling scientists, who say the organisms have proved impossible to categorise. Academics at the Natural History of Denmark have appealed to the world scientific community for help, saying that further information on Dendrogramma enigmatica and Dendrogramma discoides could answer key evolutionary questions. Jim Drury has more. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

    Environment News

    Technology News



    Save/Print:
    Share:  

    Free Subscriptions


    Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

    Get Social & Mobile


    Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

    Have Feedback?


    Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
    Mobile iPhone Android Web
    Follow Facebook Twitter Google+
    Subscribe RSS Feeds Email Newsletters
    Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins