Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Multitasking genes manage related traits in plants

28.11.2002


Think of it as finding the ultimate genetic engineers.




A plant biologist at Michigan State University has harvested clues about genes that coordinate the development of plant parts that must work together.

The work, published in the Nov. 28 issue of the British science journal Nature, points to a single mechanism that regulates the growth of related parts in flowers – kind of a genetic project manager.


"This is why we’re not just a discombobulated collection of parts. We’re coordinated," said paper author Jeffrey Conner, an associate professor of plant biology. "I found that the same genes can affect pairs of related traits."

Scientists have understood that creatures evolve to optimize their ability to survive and reproduce, ultimately building a plant or animal better adapted to its environment.

In plants, this can be seen in the size and proportions of a flower. Flowers are serious business in the plant world, the ground zero of reproduction. The parts of a flower – the petal, stamen and pistil – must be precisely constructed to lure a pollinator in to both fertilize the plant and carry away genetic material in the pollen to other flowers.

If a flower’s tube – where the nectar is – was short in relation to its stamens, the male parts of the flower, a bee could dive in, nab nectar and leave without rubbing up against the anthers and picking up their pollen.

"A flower has to evolve to successfully manipulate the behavior of the animal that pollinates it to get what it needs," Conner said. "The key is to make contact with the anthers and stigma. If that doesn’t happen, it’s worthless, from the plant’s point of view."

Conner, who does his National Science Foundation–funded research at MSU’s Kellogg Biological Station, spent years randomly crossbreeding generations of wild radish to understand how the plant coordinates its floral parts to best reproduce.

He found that consistently the plant would evolve to make sure the flower’s tube and stamen parts developed in tight correlation, and that this development was traced to a number of genes doing double duty.

This genetic mechanism creates a design stability that carries the organism successfully through evolution.

While Conner works on plants, he said this tight orchestration is seen in all organisms. Genetic coordination, for instance, is the reason human arms don’t grow out of concert with legs and send people’s knuckles dragging to the ground.

"It keeps the parts in the right proportion, so they can do a job," he said.

Understanding that a single gene affects more than one part can help reveal why plants are successful and how they maintain a structural stability over time.

It also, Conner said, opens new areas of study in all organisms about the role one gene, or group of genes, can play.


ADDITIONAL MEDIA CONTACT:
Sue Nichols, University Relations 517-355-2281

MEDIA COMMUNICATIONS
Division of University Relations
403 Olds Hall
Michigan State University
East Lansing, MI 48824-1047


Jeff Conner | EurekAlert!
Further information:
http://newsroom.msu.edu

More articles from Life Sciences:

nachricht Building a brain, cell by cell: Researchers make a mini neuron network (of two)
23.05.2018 | Institute of Industrial Science, The University of Tokyo

nachricht Research reveals how order first appears in liquid crystals
23.05.2018 | Brown University

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: LZH showcases laser material processing of tomorrow at the LASYS 2018

At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.

At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...

Im Focus: Self-illuminating pixels for a new display generation

There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?

At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...

Im Focus: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

Im Focus: Dozens of binaries from Milky Way's globular clusters could be detectable by LISA

Next-generation gravitational wave detector in space will complement LIGO on Earth

The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...

Im Focus: Entangled atoms shine in unison

A team led by Austrian experimental physicist Rainer Blatt has succeeded in characterizing the quantum entanglement of two spatially separated atoms by observing their light emission. This fundamental demonstration could lead to the development of highly sensitive optical gradiometers for the precise measurement of the gravitational field or the earth's magnetic field.

The age of quantum technology has long been heralded. Decades of research into the quantum world have led to the development of methods that make it possible...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

 
Latest News

Research reveals how order first appears in liquid crystals

23.05.2018 | Life Sciences

Space-like gravity weakens biochemical signals in muscle formation

23.05.2018 | Life Sciences

NIST puts the optical microscope under the microscope to achieve atomic accuracy

23.05.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>