Written by Daisy Bury from CPM Magazine
Download PDF Modern technologies are opening the door for plant breeding to play an increasingly important role in bringing much-needed extra environmental stability to oilseed rape growing. CPM explores some of the latest genetic thinking to answer this particular maiden’s prayer. The important thing from a breeding point of view is the considerable variation we’re seeing between different genetics. By Lucy de la Pasture Over the past 20 years marker-assisted selection has enabled oilseed rape breeders to make great progress in introducing a succession of yield-protecting traits – like double phoma, pod shatter and TuYV resistance – into the crop to reduce its vulnerability to particular production challenges. At the same time, advanced hybrid breeding has enabled these traits to be rapidly and reliably combined with one another alongside steady improvements in yield and quality. Improving combinations of more complex characters like tolerance to climatic stresses, however, has proved more difficult. Governed by many genes in different locations, each with relatively small and quite different effects, they are far less responsive to the individual marker approach. And while traditional selection under high stress environments can be valuable, progress is invariably much slower, says Dekalb breeder Matthew Clarke. Enter genome-wide selection,…
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Download PDF Modern technologies are opening the door for plant breeding to play an increasingly important role in bringing much-needed extra environmental stability to oilseed rape growing. CPM explores some of the latest genetic thinking to answer this particular maiden’s prayer. The important thing from a breeding point of view is the considerable variation we’re seeing between different genetics. By Lucy de la Pasture Over the past 20 years marker-assisted selection has enabled oilseed rape breeders to make great progress in introducing a succession of yield-protecting traits – like double phoma, pod shatter and TuYV resistance – into the crop to reduce its vulnerability to particular production challenges. At the same time, advanced hybrid breeding has enabled these traits to be rapidly and reliably combined with one another alongside steady improvements in yield and quality. Improving combinations of more complex characters like tolerance to climatic stresses, however, has proved more difficult. Governed by many genes in different locations, each with relatively small and quite different effects, they are far less responsive to the individual marker approach. And while traditional selection under high stress environments can be valuable, progress is invariably much slower, says Dekalb breeder Matthew Clarke. Enter genome-wide selection,…
The post Putting the stress on tolerance appeared first on cpm magazine.
Continue reading on CPM website...
If you are enjoying what you read then why not considering subscribing here: http://www.cpm-magazine.co.uk/subscribe/