Evaluation of Advanced GEM Lines for Multiple Insect Resistance and Fumonisin Concentration
نویسنده
چکیده
PROJECT DESCRIPTION The overall objective of this project is the development of maize varieties with host plant resistance against the Western corn rootworm (WCR), the European corn borer (ECB), and Fusarium by searching for novel resistance genes and alleles available in GEM base populations. The breeding activities comprise intensive evaluation of GEM germplasm for multiple insect and Fusarium resistance as well as the recombination of GEM germplasm with promising levels of resistance and acceptable yield potential.
منابع مشابه
Evaluation of GEM Germplasm for Multiple Insect Resistance and Fumonisin Concentration
The Western corn rootworm (WCR) and the European corn borer (ECB) are serious pests of maize in the U.S. Secondary infections with Fusarium verticillioides, F. proliferatum, and F. subglutinans occur after ECB larvae feeding, causing ear rots and contamination with fumonisin, a mycotoxin associated with severe animal and human health disorders. The tolerance of maize germplasm adapted to the Mi...
متن کاملCombining Ability among Twenty Insect Resistant Maize inbred lines Resistant to Chilo partellus and Busseola fusca Stem borers
A partial diallel design was used among 20 maize inbred lines to form 110 F1 hybrids to generate information on the values of these lines for developing insect resistant maize varieties during the short rains season of 2006. The hybrids were evaluated for resistance to the C. partellus and B. fusca, and for agronomic performance over two seasons during long and short rains of 2007 at a mid-alti...
متن کاملEvaluation of ear rot (Fusarium verticillioides) resistance and fumonisin accumulation in Italian maize inbred lines
Mycotoxin contamination of maize (Zea mays L.) grain is a global threat to the safety of both human food and animal feed. Hence, the development of maize genotypes with reduced mycotoxin accumulation in grain is of major importance. In order to find maize germplasm sources of resistance to Fusarium ear rot, 34 Italian and six public inbred lines were evaluated by means of artificial inoculation...
متن کاملSources of resistance to fumonisin accumulation in grain and fusarium ear and kernel rot of corn.
ABSTRACT Fumonisin is a group of homologous mycotoxins produced by several species of Fusarium. Fumonisin has been associated with Fusarium ear and kernel rot of corn (Zea mays) and several toxicoses of animals and humans. Corn inbreds with a high level of resistance to fumonisin production and accumulation in grain have not been identified. The objective of this study was to evaluate a genetic...
متن کاملRelationships among resistances to fusarium and Aspergillus ear rots and contamination by fumonisin and aflatoxin in maize.
ABSTRACT Fusarium verticillioides, F. proliferatum, and Aspergillus flavus cause ear rots of maize and contaminate the grain with mycotoxins (fumonisin or aflatoxin). The objective of this study was to investigate the relationships between resistance to Fusarium and Aspergillus ear rots and fumonisin and aflatoxin contamination. Based on a previous study of 143 recombinant inbred lines from the...
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