Farmers have long used selective plant breeding
to improve crop yields and nutritional content.
Now, perhaps more than ever, new cultivars of agriculturally relevant
crops are needed for coping with widely varying climates,
increases in world population, and diminishing natural resources.
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Selective breeding programs can require decades of trial and error
to arrive at desirable characteristics in a cultivar.
However,
such programs can be accelerated significantly through computational and experimental genomics.
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ACPFG scientists apply information about genome composition, gene expression,
and metabolic processes to arrive at descriptions of complex processes in plants.
The fundamental insights can accelerate production of new cultivars
that can cope with adverse environmental conditions with yields and
nutritional content for increasing world populations.
ACPFG focuses these efforts on crops such as wheat, barley, and rice.
Traditional selective breeding and genetic engineering approaches are
based on trial and error. The lack of rationale
can extend the time to develop a cultivar to ten years and more.
This situation is improved in programs that utilize
insights into gene expression and function, which are obtained from molecular level
investigations of biochemical processes. What is more, insight into plant processes
at a molecular level facilitates sharpened approaches
toward producing viable cultivars.
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In the process of developing robust cultivars, ACPFG scientists
identify mechanisms of stress perception and corresponding receptors,
key signal transduction pathways, and relevant protein structures and interactions.
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Areas of keen interest to ACPFG
involve processes associated with stress-related damage,
adaptation to growing conditions, and nutritional content. These problems are approached through:
Identification of
genetic mechanisms regulate responses to specific stresses, which can
be compared with mechanisms controlling broad range tolerance to abiotic stresses.
Genome-wide analyses used
to define key cellular processes that enable adapted plants to withstand abiotic stress,
These findings are applied to improvement of crops such as wheat and
barley.
Unraveling of regulatory
networks that control plant growth under abiotic stress.
Development of methods to manipulate
genetic networks using genetic diversity present in plants, through
functional genomics technologies.
These approaches and others are then applied to deliver tangible industry outcomes,
for example, in cereal varieties tailored to withstand hostile environments.