Navigation Links
Team finds an economical way to boost the vitamin A content of maize
Date:1/17/2008

e to increasing the provitamin A content of maize has been the expense of screening the parent stock and progeny of breeding experiments, Rocheford said.

A common technique, called high performance liquid chromatography (HPLC), can assess the provitamin A content of individual plant lines. But screening a single sample costs $50 to $75, he said.

Thats really expensive, especially since plant breeders like to screen hundreds or more plants per cycle, twice a year, he said. The cost was just prohibitive.

The new approach uses much more affordable methods and gives a more detailed picture of the genetic endowment of individual lines. One technique the researchers employed, called quantitative trait loci (QTL) mapping, allowed them to identify regions of the maize chromosomes that influence production of the precursors of vitamin A. They also used association mapping, which involves studying variation in selected genes and tracking inheritance patterns to see which form of a gene coincides with the highest provitamin A content. Polymerase chain reaction (PCR) allowed them to amplify and sequence the different versions (alleles) of the genes of interest, to find the alleles that boosted levels of vitamin A precursors in the plant.

This approach led to an important discovery. The team found a mutant form of an enzyme vital to the cascade of chemical reactions that produce the precursors of vitamin A in the plant. This mutant is transcribed in lower quantities than the normal allele and steers the biochemistry toward producing higher levels of vitamin A precursors.

The study analyzed 300 genetic lines selected to represent the global diversity of maize, and identified some varieties that came close to the target amount of 15 micrograms of beta-carotene (a form of provitamin A) per gram. Current maize varieties consumed in Africa can have provitamin A content as low as 0.1 micrograms per gram.

The researchers can now i
'/>"/>

Contact: Diana Yates
diya@uiuc.edu
217-333-5802
University of Illinois at Urbana-Champaign
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Montana State University researcher finds renewed interest in turning algae into fuel
2. Study locates cholesterol genes; finds surprises about good, bad cholesterol
3. U of M research finds disordered eating less common among teen girls who regularly eat family meals
4. Hybridization partially restores vision in cavefish, NYU study finds
5. MIT finds key to avian flu in humans
6. New report finds great potential for Swedish medical technology
7. Threatened bird species finds home at Western
8. Brain-computer link systems on the brink of breakthrough, study finds
9. RAND study finds evidence disease management programs
10. Study finds first-ever genetic animal model of autism
11. New study finds biodiversity conservation secures ecosystem services for people
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Team finds an economical way to boost the vitamin A content of maize
(Date:5/21/2015)... 2015 According to a ... (Hardware, Software, Services), by Applications (Surveillance (Airborne, Maritime, ... End-Users (Military & Defense & Commercial) - Global ... Market is expected to grow from $7252.0 Million ... a Compound Annual Growth Rate (CAGR) of 6.6%. ...
(Date:5/20/2015)... , May 20, 2015 ... ) has announced the addition of ... Global Iris Recognition Market"  report to ... ,This research service analyses trends in ... government and commercial sectors, globally. Despite ...
(Date:5/19/2015)... GOTHENBURG, Sweden , May 18, 2015 ... touch fingerprint sensors FPC1020, FPC1025, FPC1145, FPC1155 and FPC1035 from ... place from June until and including Q3 2015 and the ... Asia . Communicated order values for 2015 hereby amount ... revenues for Q1 2015 of 140 MSEK and a number ...
Breaking Biology News(10 mins):Thermal Imaging Market Worth $9,998.9 Million by 2020 2Thermal Imaging Market Worth $9,998.9 Million by 2020 3Thermal Imaging Market Worth $9,998.9 Million by 2020 4Global Iris Recognition Market Report 2015 - 5-Year Opportunity Analysis 2Fingerprint Cards Receives Touch Fingerprint Sensor Order of SEK 230 Million and Raises Revenue Guidance for 2015 2
... 10, 2011For physicians within several medical specialties, including ... patient recommendations for dietary supplements are quite common, ... Journal , a peer-reviewed, on-line journal that focuses ... The 2008 "Lifesupplemented" Healthcare Professionals (HCP) Impact Study ...
... study by scientists from Maryland and Colorado using American ... that they are at greater risk from poisoning from ... in Environmental Toxicology and Chemistry , considers the ... restrictions on the use of similar pesticides. ...
... readers, lasers have been used in a myriad of applications ... with the work being done in Jeff Gelles, Lab at ... to study the splicing of pre-messenger RNA molecules, an essential ... life. This process of splicing is carried out by a ...
Cached Biology News:Study finds usage of, recommendations for supplements common within various physician specialties 2American birds of prey at higher risk of poisoning from pest control chemicals 2Brandeis researchers use lasers, custom microscope to show gene splicing process in real time 2Brandeis researchers use lasers, custom microscope to show gene splicing process in real time 3
(Date:6/3/2015)... 03, 2015 On April 21, 2015, ... and Communications Committee (11-0) and indicates the legislature's desire to ... energy. , The Committee Chairman supports the bill and would ... by 8,000 GWh and would also like to see any ... , This “Wait List” and timing are extremely important. , ...
(Date:6/3/2015)... Tennessee (PRWEB) June 03, 2015 Green ... in Milan, Tennessee to support the RCBC Waste to ... is fourth generation in the family business, http://www.greenearthwaste.com ... 1908. His family added recycling to their waste ... and recycling services to the Fortune 500 companies with ...
(Date:6/3/2015)... Marktech Optoelectronics is pleased to introduce ... have an internal gain mechanism, fast time response, low ... region. These APD’s are recommended for applications that require ... overcome high pre-amp noise. In addition, Marktech APD's provide ... for extreme low-level light detection and short pulse detection. ...
(Date:6/2/2015)... SEATTLE , June 2, 2015 TapImmune, ... and its institutional investors have reached an agreement whereby ... their short term warrants to provide the Company up ... and an effective S-1 registration statement. Under the restructured ... may also call additional warrants which could result in ...
Breaking Biology Technology:Bmark Energy Announces the Sign-up Deadline for Companies Interested in California’s Direct Access Program is June 12th, 2015 at 5:00pm. 2Marktech Introduces New Line of APDs 2TapImmune Announces Agreement To Facilitate Near Term Capital Infusion; Expediting Path Toward Phase II Trial Initiation 2TapImmune Announces Agreement To Facilitate Near Term Capital Infusion; Expediting Path Toward Phase II Trial Initiation 3
... ... ... ... ...
... ... Technologies for Quantitative, Reproducible Imaging and Enhancing Fluorescence Correlation Spectroscopy Data , ... (PRWEB) February 19, 2010 -- ... life sciences, will offer two educational presentations at the 2010 Biophysical Annual Meeting. The ...
... ATLANTA , Feb. 18 GeoVax ... Atlanta -based, biopharmaceutical company developing vaccines for diseases caused ... the results of a preclinical study on a prototype HIV/AIDS ... (CROI) in San Francisco . , The oral ...
Cached Biology Technology:CHMP Adopts Negative Opinion for ZEFTERA(TM) 2CHMP Adopts Negative Opinion for ZEFTERA(TM) 3Photometrics to Offer Presentations on EMCCD Bio-Imaging Advances at 2010 Biophysical Annual Meeting 2Photometrics to Offer Presentations on EMCCD Bio-Imaging Advances at 2010 Biophysical Annual Meeting 3Photometrics to Offer Presentations on EMCCD Bio-Imaging Advances at 2010 Biophysical Annual Meeting 4GeoVax Labs, Inc. Reports Data on Prototype Adjuvant - Supplemented HIV Vaccine Tested in Preclinical Animal Studies 2GeoVax Labs, Inc. Reports Data on Prototype Adjuvant - Supplemented HIV Vaccine Tested in Preclinical Animal Studies 3GeoVax Labs, Inc. Reports Data on Prototype Adjuvant - Supplemented HIV Vaccine Tested in Preclinical Animal Studies 4GeoVax Labs, Inc. Reports Data on Prototype Adjuvant - Supplemented HIV Vaccine Tested in Preclinical Animal Studies 5GeoVax Labs, Inc. Reports Data on Prototype Adjuvant - Supplemented HIV Vaccine Tested in Preclinical Animal Studies 6
C/EBPalpha Antibody Shipping Temperature: Cold Storage Temperature: -20C...
...
AADAC Immunogen: AADAC (NP_001077, 201 a.a. ~ 301 a.a) partial recombinant protein with GST tag. Storage: -20 C, Avoid Freeze/Thaw Cycles *Available for distribution in the US only...
WTAP Antibody...
Biology Products: