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:3/1/2017)... , March 1, 2017  Aware, Inc. (NASDAQ: ... announced that Richard P. Moberg has resigned, ... co-President and Chief Financial Officer and Treasurer of Aware ... to serve as a member of the Board of ... , Aware,s co-Chief Executive Officer and co-President, General Counsel ...
(Date:2/28/2017)... Februar 2017  EyeLock LLC, ein marktführendes Unternehmen im ... biometrische Lösung zur Iris-Erkennung auf der neuesten ... auf dem Mobile World Congress 2017 (27. ... Halle 3, Stand 3E10, vorstellen. ... Haven™ – eine Kombination aus Hardware, Software ...
(Date:2/24/2017)... -- EyeLock LLC, a leader of iris-based identity authentication ... solution on the latest Qualcomm® Snapdragon™ 835 mobile ... Congress 2017 (February 27 – March 2, ... Stand 3E10. The Snapdragon 835 ... combination of hardware, software and biometrics technologies ...
Breaking Biology News(10 mins):
(Date:3/27/2017)...  Perthera,s Chief Bioinformatics Officer and research faculty member ... Ph.D., will be speaking at the American Medical Informatics ... 27, 2017, she will be speaking on the topic ... and Care" (from 10:30 a.m. – 12:00 p.m. PST) ... a participant in the "Making Precision Oncology Data More ...
(Date:3/27/2017)... NC (PRWEB) , ... March 27, 2017 , ... ... Clinical Trial Collaborations (CTC) conference presented by The Conference Forum in Boston on ... way they collaborate to drive improved clinical trial outcomes and bring them closer to ...
(Date:3/27/2017)... SAN DIEGO , March 27, 2017  Trovagene, ... announced that its Chief Executive Officer, Bill Welch ... on April 4, 2017 at 9:00 AM EDT at ... .  Bill Welch, and Chief Scientific Officer, ... meet with investors during the conference.   The ...
(Date:3/27/2017)... 27, 2017 Neurotrope, Inc. (OTCQB: NTRP),  ... neurodegenerative diseases, including Alzheimer,s disease, today announced that ... list the Company,s common stock on the NASDAQ ... Stock Market, a unit of the NASDAQ OMX ... the Opening Bell at the NASDAQ MarketSite in ...
Breaking Biology Technology: