The Genetics and Genomics of Virus Resistance in Maize

Date
2018-01-01
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Redinbaugh, Margaret
Lubberstedt, Thomas
Lubberstedt, Thomas
Leng, Pengfei
Xu, Mingliang
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Agronomy
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Agronomy
Abstract

Viruses cause significant diseases on maize worldwide. Intensive agronomic practices, changes in vector distribution, and the introduction of vectors and viruses into new areas can result in emerging disease problems. Because deployment of resistant hybrids and cultivars is considered to be both economically viable and environmentally sustainable, genes and quantitative trait loci for most economically important virus diseases have been identified. Examination of multiple studies indicates the importance of regions of maize chromosomes 2, 3, 6, and 10 in virus resistance. An understanding of the molecular basis of virus resistance in maize is beginning to emerge, and two genes conferring resistance to sugarcane mosaic virus, Scmv1 and Scmv2, have been cloned and characterized. Recent studies provide hints of other pathways and genes critical to virus resistance in maize, but further work is required to determine the roles of these in virus susceptibility and resistance. This research will be facilitated by rapidly advancing technologies for functional analysis of genes in maize.

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This is a chapter from Redinbaugh M.G., Lübberstedt T., Leng P., Xu M. (2018) The Genetics and Genomics of Virus Resistance in Maize. In: Bennetzen J., Flint-Garcia S., Hirsch C., Tuberosa R. (eds) The Maize Genome. Compendium of Plant Genomes. Springer, Cham. doi: 10.1007/978-3-319-97427-9_12.

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