Navigation Links
'A-maize-ing' discovery could lead to higher corn yields for food, feed and fuel
Date:3/25/2010

Pittsburgh, PA -- Scientists may have made an "a-maize-ing" discovery that could lead to higher corn yields in the United States. In a new research report published in the March 2010 issue of the journal Genetics (http://www.genetics.org), scientists used tropical maize from Mexico and Thailand to discover chromosome regions responsible for detecting seasonal changes in flowering time (called the "photoperiod response"). This discovery may lead to higher crop yields, improved disease resistance, and heartier plants able to withstand severe weather. As one of the United States' largest crops, corn is used for food, feed, sweetener, fuel, plastics, and more.

"Photoperiod response is the major barrier to using tropical maize for the improvement of temperate maize varieties," said James B. Holland, Ph.D, a researcher involved in the work from the U.S. Department of Agriculture, Agricultural Research Service, Plant Science Research Unit at North Carolina State University. "By understanding the genetics of this barrier, we hope to be able to overcome it more quickly to broaden the genetic diversity of temperate maize."

To discover these important regions of the plant's genome, researchers interbred two tropical, photoperiod-sensitive corn lines (one from Mexico; one from Thailand) with two photoperiod-insensitive corn lines from the United States, and grew out hundreds of progeny lines in North Carolina (long day-length summers) and in Florida (short day-length winters). Lines with strong photoperiod response were identified as those flowering much later in North Carolina, compared to Florida. Researchers then genetically mapped all of the lines and identified DNA markers associated with the photoperiod response. The genomic regions carrying the major photoperiod response genes were then identified.

In addition to allowing for improved strains of domestic corn, the research also is important because it suggests that the genes controlling the photoperiod response in corn are at least partly distinct than those believed to control photoperiod response in model plant species such as Arabidopsis (Mustard Weed) and rice. Future studies to pinpoint specific genes involved in the photoperiod response, however, will be necessary to draw definitive conclusions. The results of these future studies should lead to a better understanding of the extent of shared genetic pathways among distinct plant species and provide insights into how such pathways evolve. Ultimately this knowledge could have significant implications for agricultural species around the world.

"Corn is obviously an important crop, and geneticists and plant breeders are always looking for ways to improve it," said Mark Johnston, Editor-in-Chief of the journal Genetics. "This research may help us coax even more production out of this 'a-maize-ing' plant."


'/>"/>

Contact: Tracey DePellegrin-Connelly
td2p@andrew.cmu.edu
412-268-1812
Genetics Society of America
Source:Eurekalert

Related biology news :

1. African bird discovery proves there is something new under the sun
2. Discovery in legumes could reduce fertilizer use, aid environment: Stanford researchers
3. Startup joins UCLA tech incubator to develop technologies for drug discovery, screening
4. An electrifying discovery: New material to harvest electricity from body movements
5. New gene discovery could help to prevent blindness
6. First discovery of the female sex hormone progesterone in a plant
7. Enlisting a drug discovery technique in the battle against global warming
8. TGen becomes center of excellence for Horizon Discoverys GENESIS and X-MAN technology
9. Gene function discovery: Guilt by association
10. Discovery of algaes toxic hunting habits could help curb fish kills
11. From biological basics to diabetes discovery
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/14/2016)... 14, 2016 BioCatch ™, ... today announced the appointment of Eyal Goldwerger ... Goldwerger,s leadership appointment comes at a time ... the deployment of its platform at several of the ... which discerns unique cognitive and physiological factors, is a ...
(Date:3/23/2016)... Massachusetts , March 23, 2016 /PRNewswire/ ... im Interesse erhöhter Sicherheit Gesichts- und Stimmerkennung ... Xura, Inc. (NASDAQ: MESG ), ... bekannt, dass das Unternehmen mit SpeechPro zusammenarbeitet, ... aus der Finanzdienstleistungsbranche, wird die Möglichkeit angeboten, ...
(Date:3/17/2016)... , March 17, 2016 ABI Research, ... forecasts the global biometrics market will reach more ... 118% increase from 2015. Consumer electronics, particularly smartphones, ... fingerprint sensors anticipated to reach two billion shipments ... Dimitrios Pavlakis , Research Analyst at ABI ...
Breaking Biology News(10 mins):
(Date:5/24/2016)... ... 24, 2016 , ... Cell therapies for a range of ... research at Worcester Polytechnic Institute (WPI) that yielded a newly patented method of ... The novel method, developed by WPI faculty members Raymond Page, PhD, professor of ...
(Date:5/24/2016)... , ... May 24, 2016 , ... Last week, Callan ... corporate executives and entrepreneurs, held The Future of San Diego Life Science event at ... Diego life science community attended the event with speakers Dr. Rich Heyman, former CEO ...
(Date:5/23/2016)... (PRWEB) , ... May 23, 2016 , ... The need for blood donations in South ... week by the South Texas Blood & Tissue Center, blood donations are on the decline. ... years, and they are down 21 percent in South Texas in the last four years ...
(Date:5/23/2016)... , May 23, 2016 Zimmer Biomet Holdings, Inc. ... today announced that its Board of Directors has approved the ... second quarter of 2016. The cash dividend ... July 29, 2016 to stockholders of record as of the ... dividends are subject to approval of the Board of Directors ...
Breaking Biology Technology: