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:1/20/2016)... , Jan. 20, 2016  Synaptics Incorporated (NASDAQ: ... interface solutions, today announced sampling of S1423, its ... wearables and small screen applications including smartwatches, fitness ... Supporting round and rectangular shapes, as well as ... performance with moisture on screen, while wearing gloves, ...
(Date:1/15/2016)... JUAN, Puerto Rico , Jan. 15, 2016 /PRNewswire/ ... companies big and small to find new ways to ... driven culture. iOS and Android ... device based on biometrics, transforming it into a hardware ... request that users swipe their fingerprint on their KodeKey ...
(Date:1/13/2016)... 13, 2016 ... of the  "India Biometrics Authentication & ... (2015-2020)"  report to their offering.  ... announced the addition of the  "India ... Estimation & Forecast (2015-2020)"  report ...
Breaking Biology News(10 mins):
(Date:2/4/2016)... 2016  Sangamo BioSciences, Inc. (NASDAQ: SGMO ), ... Edward Lanphier , Sangamo,s president and chief executive ... Sangamo,s ZFP Therapeutic ® development programs and an ... ET on Thursday, February 11, 2016, at the Leerink ... conference is being held in New York ...
(Date:2/4/2016)... MENLO PARK, Calif. , Feb. 4, 2016 ... the "Company"), a biopharmaceutical company focused on the development and ... present at the 18 th Annual BIO CEO ... 10:00 a.m. EST in New York, NY ... CEO, will provide an update on the ongoing clinical trial ...
(Date:2/4/2016)... Oakland, California (PRWEB) , ... February 04, 2016 ... ... Artificial Intelligence (AI) and leading supplier of Semantic Graph Database technology has been ... Graph Database Products ” by Corporate America Magazine. , “At Corporate America, it’s ...
(Date:2/3/2016)... 3, 2016  With the growing need for ... is underway, therapies such as monoclonal antibodies, recombinant ... host of indications are in high demand. Conventionally ... development and production of these therapeutics. However, due ... high costs, novel approaches and novel expression systems ...
Breaking Biology Technology: