Navigation Links
New maize map to aid plant breeding efforts
Date:11/19/2009

In a massive survey of genetic diversity in maize, also known as corn, researchers across the United States, have developed a gene map that should pave the way to significant improvements in a plant that is a major source of food, fuel, animal feed and fiber around the world.

The new map, a special type of gene map known as a haplotype map, charts genetic diversity and recombination across the genome of 27 inbred lines of maize. The research team, led by U.S. Department of Agriculture scientists at Cornell University and Cold Spring Harbor Laboratory in New York and including plant scientist Jeffrey Ross-Ibarra of the University of California, Davis, will report its findings in the Nov. 20 issue of the journal Science.

"We are hopeful that the information that this haplotype map reveals about the genetic diversity of maize will provide a foundation for efforts to understand maize evolution and the genetic basis of complex traits that may prove key to maize improvement," Ross-Ibarra said.

Maize (Zea mays L.), with its genome of an estimated 30,000 genes distributed along 10 chromosomes, is about 70 percent the size of the human genome. In constructing the haplotype map, the researchers identified several million genetic variations or polymorphisms in the DNA sequence among the 27 maize inbred lines, as well as 10-fold to 30-fold variation in the rates at which genes recombine.

"This approach yielded evidence that points to hundreds of regions in the genome that were probably involved in the domestication of maize and-or geographic differentiation among various lines of maize," Ross-Ibarra said."


'/>"/>

Contact: Pat Bailey
pjbailey@ucdavis.edu
530-752-9843
University of California - Davis
Source:Eurekalert

Page: 1

Related biology news :

1. First all-African GM crop is resistant to maize streak virus
2. Transgenic maize is more susceptible to aphids
3. Simulating kernel production influences maize model accuracy
4. If corn is biofuels king, tropical maize may be emperor
5. Team finds an economical way to boost the vitamin A content of maize
6. Ancient Mexican maize varieties
7. Early origins of maize in Mexico
8. Researchers find the earliest evidence of domesticated maize
9. The amazing maze of maize evolution
10. New map of variation in maize genetics holds promise for developing new varieties
11. Maize cell wall genes identified, giving boost to biofuel research
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/6/2017)... Forecasts by Product Type (EAC), Biometrics, Card-Based ... & Logistics, Government & Public Sector, Utilities / Energy ... Nuclear Power), Industrial, Retail, Business Organisation (BFSI), Hospitality & ... for a definitive report on the $27.9bn Access Control ... ...
(Date:4/5/2017)... April 4, 2017 KEY FINDINGS ... expand at a CAGR of 25.76% during the forecast ... the primary factor for the growth of the stem ... https://www.reportbuyer.com/product/4807905/ MARKET INSIGHTS The global stem cell ... application, and geography. The stem cell market of the ...
(Date:3/30/2017)...  On April 6-7, 2017, Sequencing.com will host the ... hackathon at Microsoft,s headquarters in Redmond, Washington ... developing health and wellness apps that provide a unique, ... is the first hackathon for personal genomics and ... in the genomics, tech and health industries are sending ...
Breaking Biology News(10 mins):
(Date:5/18/2017)... , ... May 18, 2017 , ... When James Sherley, was notified earlier this year ... Valuable Brands for the Year 2017 by The Silicon Review , he was not ... good progress increasing Asymmetrex’s value, but this recognition by Silicon Valley was particularly meaningful. ...
(Date:5/16/2017)... May 16, 2017 Telehealth has long ... and something that has been kept completely separate ... But according to   Logicalis Healthcare Solutions , ... IT solutions and managed services provider ( www.us.logicalis.com ... overlooked – interrelationship between telehealth, imaging, and EHR ...
(Date:5/15/2017)... ... 2017 , ... Algenist is continuing to disrupt the skincare ... with a patented formula, clinically proven to deliver visible firming results in 10 ... to our already innovative ELEVATE product line,” said vice president of product development ...
(Date:5/11/2017)... BOTHELL, Wash. , May 11, 2017   BioLife ... developer, manufacturer and marketer of proprietary clinical grade cell and ... media ("BioLife" or the "Company"), today reported operational highlights and ... Revenue from biopreservation media product sales reached a new high ... increase of 28% over the same period in 2016. Revenue ...
Breaking Biology Technology: