Genetic improvement of C4 grasses as cellulosic biofuel feedstocks |
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Authors: | Katrin Jakob Fasong Zhou Andrew H Paterson |
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Institution: | (1) Mendel Biotechnology, Inc., 3935 Point Eden Way, Hayward, CA 94545, USA;(2) Plant Genome Mapping Laboratory, Department of Crop and Soil Sciences, University of Georgia, 111 Riverbend Road, Athens, GA 30602, USA |
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Abstract: | C4 grasses are among the most productive plants and most promising cellulosic biofuel feedstocks. Successful implementation
of cellulosic biofuel feedstocks will depend on the improvement of critical crop characteristics and subsequent conversion
technologies. The content and composition of lignin, cellulose, and hemicellulose, their biomass yields, and their biotic
and abiotic stress tolerances are critical factors which can be enhanced by molecular breeding methods, including marker-assisted
selection and transgenic approaches. To maximize biomass yield, no flowering or late flowering and no grain set would be ideal
for cellulosic biofuel crops. Reducing fecundity also reduces the risk of undesired gene transfer and invasiveness, thus accelerating
deregulation processes and permitting faster implementation of highly improved genotypes in cellulosic feedstock production. |
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