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Identifying mega-targets for high-yield plant breeding
Date:2/17/2009

are published in the January 2009 issue of the journal Crop Science.

The researchers found that all phenotypic traits had significant genetic diversity, but only seven of the 20 traits evaluated showed differences in the amount of diversity among the breeding programs. Some breeding programs had high levels of diversity for most traits, while others had low levels of diversity.

The methodology proposed by the authors groups breeding programs by their performance and by their response to changes in the environment, resulting in sets of breeding programs with similar performance and similar adaptations. They call these sets mega-targets of selection. The authors identified three mega-targets of selection among the barley breeding programs. They hypothesize that exchange of germplasm within mega-targets of selection would produce adapted genotypes with high yields. Research is ongoing to develop larger data sets to evaluate this method.


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Contact: Sara Uttech
suttech@crops.org
608-268-4948
Crop Science Society of America
Source:Eurekalert

Page: 1 2

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