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Books > Science & Mathematics > Biology, life sciences > Botany & plant sciences > Plant pathology & diseases
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Disease Resistance in Crop Plants - Molecular, Genetic and Genomic Perspectives (Hardcover, 1st ed. 2019)
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Disease Resistance in Crop Plants - Molecular, Genetic and Genomic Perspectives (Hardcover, 1st ed. 2019)
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Human population is escalating at an enormous pace and is estimated
to reach 9.7 billion by 2050. As a result, there will be an
increase in demand for agricultural production by 60-110% between
the years 2005 and 2050 at the global level; the number will be
even more drastic in the developing world. Pathogens, animals, and
weeds are altogether responsible for between 20 to 40 % of global
agricultural productivity decrease. As such, managing disease
development in plants continues to be a major strategy to ensure
adequate food supply for the world. Accordingly, both the public
and private sectors are moving to harness the tools and paradigms
that promise resistance against pests and diseases. While the next
generation of disease resistance research is progressing, maximum
disease resistance traits are expected to be polygenic in nature
and controlled by selective genes positioned at putative
quantitative trait loci (QTLs). It has also been realized that
sources of resistance are generally found in wild relatives or
cultivars of lesser agronomic significance. However, introgression
of disease resistance traits into commercial crop varieties
typically involves many generations of backcrossing to transmit a
promising genotype. Molecular marker-assisted breeding (MAB) has
been found to facilitate the pre-selection of traits even prior to
their expression. To date, researchers have utilized disease
resistance genes (R-genes) in different crops including cereals,
pulses, and oilseeds and other economically important plants, to
improve productivity. Interestingly, comparison of different R
genes that empower plants to resist an array of pathogens has led
to the realization that the proteins encoded by these genes have
numerous features in common. The above observation therefore
suggests that plants may have co-evolved signal transduction
pathways to adopt resistance against a wide range of divergent
pathogens. A better understanding of the molecular mechanisms
necessary for pathogen identification and a thorough dissection of
the cellular responses to biotic stresses will certainly open new
vistas for sustainable crop disease management. This book
summarizes the recent advances in molecular and genetic techniques
that have been successfully applied to impart disease resistance
for plants and crops. It integrates the contributions from plant
scientists targeting disease resistance mechanisms using molecular,
genetic, and genomic approaches. This collection therefore serves
as a reference source for scientists, academicians and post
graduate students interested in or are actively engaged in
dissecting disease resistance in plants using advanced genetic
tools.
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