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 When Air is in Short Supply - Shedding light on plant stress reactions when oxygen runs short
23.03.2017 | Institut für Pflanzenbiochemie

nachricht WPI team grows heart tissue on spinach leaves
23.03.2017 | Worcester Polytechnic Institute

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Giant Magnetic Fields in the Universe

Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.

The results will be published on March 22 in the journal „Astronomy & Astrophysics“.

Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...

Im Focus: Tracing down linear ubiquitination

Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.

Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...

Im Focus: Perovskite edges can be tuned for optoelectronic performance

Layered 2D material improves efficiency for solar cells and LEDs

In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...

Im Focus: Polymer-coated silicon nanosheets as alternative to graphene: A perfect team for nanoelectronics

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...

Im Focus: Researchers Imitate Molecular Crowding in Cells

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International Land Use Symposium ILUS 2017: Call for Abstracts and Registration open

20.03.2017 | Event News

CONNECT 2017: International congress on connective tissue

14.03.2017 | Event News

ICTM Conference: Turbine Construction between Big Data and Additive Manufacturing

07.03.2017 | Event News

 
Latest News

When Air is in Short Supply - Shedding light on plant stress reactions when oxygen runs short

23.03.2017 | Life Sciences

Researchers use light to remotely control curvature of plastics

23.03.2017 | Power and Electrical Engineering

Sea ice extent sinks to record lows at both poles

23.03.2017 | Earth Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>