Producing high-yield maize crops using sustainable methods is challenging, as varieties need to be developed quickly and efficiently to combat the changing climate and the increasing world demand for food.
Scientists at theInternational Maize and Wheat Improvement Center, the China Agricultural University,and the USDA Agricultureal Research Service have reviewed state-of-the-art association mapping ofmaize, and the factors that will allow for the maximum impact of this new tool in gene discovery studies and practical maizeimprovement programs.
“Association mapping remains complementary to, rather than a replacement for, linkage mapping and other gene identification and validation techniques. The integration of linkage mapping and association mapping approaches offers substantial opportunity to resolve the individual constraints of each approach while synergizing their respective strengths,” says Jianbing Yan, one of the study’s authors.
Yan and other researchers have compiled and accounted for all known published literature on the topic and can illustrate the conditions that would promote association mapping and allow improved corn varieties to efficiently reach farmers across the globe. Association mapping can identify the genes needed to increase crop yields without the need to increase irrigation or the use of fungicides.
Research is ongoing at these institutions to apply the results of other challenges food production faces like improved nutrition, grain yield, drought tolerance, and resistance to toxic fungal pathogens. The full review paper appears in the March-April 2011 issue of Crop Science. The study was funded by Bill and Melinda Gates Foundation, and the National Hitech Research and Development Program of China.
The full article is available for no charge for 30 days following the date of this summary. View the abstract at www.crops.org/publications/cs/abstracts/51/2/433.
Crop Science is the flagship journal of the Crop Science Society of America. Original research is peer-reviewed and published in this highly cited journal. It also contains invited review and interpretation articles and perspectives that offer insight and commentary on recent advances in crop science. For more information, visit www.crops.org/publications/cs
The Crop Science Society of America (CSSA), founded in 1955, is an international scientific society comprised of 6,000+ members with its headquarters in Madison, WI. Members advance the discipline of crop science by acquiring and disseminating information about crop breeding and genetics; crop physiology; crop ecology, management, and quality; seed physiology, production, and technology; turfgrass science; forage and grazinglands; genomics, molecular genetics, and biotechnology; and biomedical and enhanced plants.
CSSA fosters the transfer of knowledge through an array of programs and services, including publications, meetings, career services, and science policy initiatives. for more information, visit www.crops.org
Sara Uttech | Newswise Science News
Cascading use is also beneficial for wood
11.12.2017 | Technische Universität München
The future of crop engineering
08.12.2017 | Max-Planck-Institut für Biochemie
DNA molecules that follow specific instructions could offer more precise molecular control of synthetic chemical systems, a discovery that opens the door for engineers to create molecular machines with new and complex behaviors.
Researchers have created chemical amplifiers and a chemical oscillator using a systematic method that has the potential to embed sophisticated circuit...
MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.
Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...
Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...
Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...
The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...
11.12.2017 | Event News
08.12.2017 | Event News
07.12.2017 | Event News
15.12.2017 | Power and Electrical Engineering
15.12.2017 | Materials Sciences
15.12.2017 | Life Sciences