Source: Crop Science Society of America

New research at North Carolina State University found greater genetic diversity in commercial Virginia-type peanut cultivars than expected, which could be useful for genetic disease resistance development.

Virginia-type peanuts, the bigger ones sold in the shell or used in cocktail nut mixes, are more genetically variable than previously assumed, according to a new study. With molecular markers for guidance, there had been the assumption that there is virtually no genetic variation in the peanut species. However, diverse peanut lines in nursery stock growth indicated otherwise.

Crop scientist Susana Milla-Lewis, Ph.D., used microsatellite markers, or "simple sequence repeats," and found variability within the commercially available Virginia-type varieties. The results were reported in the July-August 2010 edition of the peer-reviewed journal Crop Science, published by the Crop Science Society of America.
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