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:4/5/2017)... , April 5, 2017 Today ... announcing that the server component of the HYPR platform ... for providing the end-to-end security architecture that empowers biometric ... HYPR has already secured over 15 million users ... including manufacturers of connected home product suites and physical ...
(Date:3/30/2017)... 30, 2017  On April 6-7, 2017, Sequencing.com will ... hackathon at Microsoft,s headquarters in ... focus on developing health and wellness apps that provide ... the Genome is the first hackathon for personal ... largest companies in the genomics, tech and health industries ...
(Date:3/28/2017)... , March 28, 2017 The ... Hardware (Camera, Monitors, Servers, Storage Devices), Software (Video Analytics, ... Region - Global Forecast to 2022", published by MarketsandMarkets, ... 2016 and is projected to reach USD 75.64 Billion ... and 2022. The base year considered for the study ...
Breaking Biology News(10 mins):
(Date:8/22/2017)... ... 2017 , ... KBioBox is pleased to announce the creation ... ananlysis. KBioBox has adapted their core technology and direct alignment algorithms to extend ... understand reports, extended indel analysis, and translocation analysis. , “The extended GUIDE-Seq analysis ...
(Date:8/21/2017)... ... 21, 2017 , ... Boston Strategic Partners, Inc. (BSP), a ... and Outcomes Research (HEOR) and ‘big data’ to provide a variety of in-depth ... $3.0 trillion with nearly 1/3 spent on hospitalizations. BSP has access to real-world ...
(Date:8/17/2017)... ... August 17, 2017 , ... CNA ... outlet had provided a research update on Aytu Bioscience and cited promising increases ... According to Soulstring, prescription rates for Natesto® have more than doubled since March ...
(Date:8/16/2017)... ... August 16, 2017 , ... While art and science are often thought of ... one might think. A Mesh Is Also a Snare, a group exhibition presented ... Center’s Esther Klein Gallery (EKG) on August 17 and run through September 30. An ...
Breaking Biology Technology: