Navigation Links
Ancient Mexican maize varieties
Date:6/25/2008

Maize was first domesticated in the highlands of Mexico about 10,000 years ago and is now one of the most important crop plants in the world. It is a member of the grass family, which also hosts the world's other major crops including rice, wheat, barley, sorghum, and sugar cane. As early agriculturalists selected plants with desirable traits, they were also selecting genes important for transforming a wild grass into a food plant. Since that time, Mexican farmers have created thousands of varieties suitable for cultivation in the numerous environments in the Mexican landscapefrom dry, temperate highlands to moist, tropical lowlands. Because of its importance as food, the need to improve yield, and the challenges presented by changing climate, the maize genome of the B73 cultivar is being sequenced. However, because maize has a complex genome and many varieties, the genome sequence from just one variety will not be adequate to represent the diversity of maize worldwide. Mexican scientists are also sequencing and analyzing the genomes of the ancient landraces to recapture the full genetic diversity of this complex and adaptable crop.

Dr. Vielle-Calzada and his colleagues, Octavio Martinez de la Vega, Julio Vega-Arrenguin, Gustavo Hernandez-Guzman, Enrique Ibarra-Laclette, Beatriz Jimenez-Moraila, Guilermo Corona-Armenta, Cesar Alvarez-Mejia, Araceli Fernandez-Cortes, Gustavo de la Riva, Alfredo Herrera-Estrella, and Luis Herrera-Estrella, are in the process of sequencing one of the ancient popcorn races, Palomero, and analyzing its molecular and functional diversity relative to other maize races. Dr. Vielle-Calzada, of the National Laboratory of Genomics for Biodiversity, Cinvestav, Mexico, will be presenting this work at a symposium on Maize Biology at the annual meeting of the American Society of Plant Biologists in Mrida, Mexico (June 28, 11:30 AM).

Like other varieties of maize, the popcorn landraces are used throughou
'/>"/>

Contact: Dr. Jean-Philippe Vielle-Calzada
vielle@ira.cinvestav.mx
462-623-9634
American Society of Plant Biologists
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Archaeologist uses satellite imagery to explore ancient Mexico
2. Ancient protein offers clues to killer condition
3. Ancient Nutcracker Man challenges ideas on evolution of human diet
4. Ancient sunflower fuels debate about agriculture in the Americas
5. Ancient ecosystems organized much like our own
6. Synchrotron light unveils oil in ancient Buddhist paintings from Bamiyan
7. Ancient DNA: reconstruction of the biological history of Aldaieta necropolis
8. Ancient reptile rises from Alberta oil sands
9. Ancient lemurs little finger poses mystery
10. Floating a big idea: MIT demos ancient use of rafts to transport goods
11. Ancient mystery solved
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/17/2014)... Our eyes not ... with a continuous stream of information about our own movements. ... a car the world glides by us and leaves ... our brain calculates self-motion from this "optic flow". This way, ... during our own movements. Together with biologists from the University ...
(Date:4/17/2014)... to produce hydrogen sulfide in order to properly multiply ... from the Center for Craniofacial Molecular Biology at the ... Songtao Shi, principal investigator on the project, said the ... the flow of calcium ions. The essential ions activate ... or the creation of new bone tissue, and keeps ...
(Date:4/17/2014)... Singh Thursday as a "Champion of Change" for ... in the residential, commercial and industrial sectors. , ... and Computer Engineering and director of Clemson,s Center ... leading the charge across the country to create ... driving policy changes at the local level to ...
Breaking Biology News(10 mins):How vision makes sure that little fish do not get carried away 2How vision makes sure that little fish do not get carried away 3How vision makes sure that little fish do not get carried away 4White House honors Clemson professor as 'Champion of Change' for solar deployment 2
... international team of scientists led by King,s College London has ... (short-sightedness). Myopia is a major cause of ... cure. These findings, published today in the journal Nature ... lead to finding better treatments or ways of preventing the ...
... (NGS) technology has revolutionized biomedical research, making complete ... for a wide variety of research applications. Bioinformatics ... critical bottleneck for many researchers and organizations wishing ... DNA Sequencing Informatics provides a thorough introduction ...
... throughout Vienna it was impossible not to notice that the ... around the courtyards of the inner city nor woke tired ... no longer there. Thankfully, they gradually reappeared and a ... levels. But the sudden crash in numbers was alarming ...
Cached Biology News:New genes for short-sightedness identified 2Forensic pathology: tracing the origin of the Usutu Virus 2
(Date:1/14/2014)... WASHINGTON , Jan. 14, 2014  3D Communications, a leading provider ... scientific, regulatory, business, and media events in the United ... its former associate Virginia Cox , JD, is returning to ... Virginia Cox re-joins 3D after more than two years ...
(Date:1/14/2014)... , Jan. 14, 2014 The largest international ... medicinal plants and therapeutic derivatives thereof has endorsed ... and researchers about the challenges of adulterated herb ... ) The Society for Medicinal ...
(Date:1/14/2014)... Canada (PRWEB) January 14, 2014 In ... its motives and methods in product development and promotion ... the industry. This mistrust, fueled by concerns about the ... fed by reports of spectacular fines to the world’s ...
(Date:1/14/2014)... ®, provider of RapidResponse ®, a cloud-based supply chain ... S&OP ) service, is proud to be a gold sponsor ... at the Hilton San Diego Bayfront, January 30 – 31, ... , Director of Supply Chain at Amgen, as she presents ...
Breaking Biology Technology:Former FDA Associate Commissioner Returns To 3D Communications 2World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 2World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 3World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 4World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 5World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 6World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 7World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 8The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 2The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 3Event Alert: Kinaxis Customer to Present at the Biomanufacturing Summit "Supply Chain: Improving Network Effectiveness" 2
... New sol-gel inks developed by researchers at the University ... three-dimensional structures of metal oxides with nanoscale features. , ... nanoscale opens a new avenue to functional devices. Potential ... The researchers describe the new inks in a paper ...
... Calif., Oct. 11 CompareNetworks,Media Group, the leading ... industries, today announced the launch of Acuity Medical,Education, ... CompareNetworks. With the arrival of two key new ... Liza Frenzik as Special,Projects Director, the CompareNetworks team ...
... Fisher,Scientific Inc. (NYSE: TMO ), the world ... construct an $11 million, state-of-the-art BioCenter,for the manufacture ... the site of its existing bioprocess production business ... a response to the increasing demand for,disposable bioprocessing ...
Cached Biology Technology:Sol-gel inks produce complex shapes with nanoscale features 2CompareNetworks Media Group Delivers CME/CE Through Acuity Medical Education 2Thermo Fisher Scientific to Expand Manufacturing Operation for Single-Use Bioprocessing Containers 2Thermo Fisher Scientific to Expand Manufacturing Operation for Single-Use Bioprocessing Containers 3Thermo Fisher Scientific to Expand Manufacturing Operation for Single-Use Bioprocessing Containers 4
iEMS Thermal Microplate Holder...
Improve inventory management with stainless steel red cell canisters; ensure product safety with CO2 or LN2 backup systems. A complete solution for your blood banking needs....
Improve inventory management with stainless steel red cell canisters; ensure product safety with CO2 or LN2 backup systems. A complete solution for your blood banking needs....
... RNase H- Reverse Transcriptase (RT) is an ... RT. It is a DNA polymerase that ... RNA DNA or an RNA:DNA hybrid. This ... of point mutations rather than a deletion ...
Biology Products: