Testing for Genetic Purity in Petunia and Cyclamen Seed Using Random Amplified Polymorphic DNA Markers

in HortScience
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  • 1 Department of Horticulture and Crop Science, Kottman Hall, The Ohio State University, Columbus, OH 43210-1086

This study examined the use of random amplified polymorphic DNA (RAPD) markers as a means to identify cultivars of petunia (Petunia hybrida Vilm) seedlings and cyclamen (Cyclamen persicum Mill.) seeds and to determine the genetic purity within cyclamen seeds. Bulked samples of six petunia and five cyclamen hybrid cultivars, respectively, produced consistent RAPD marker profiles. Evaluation of individual seeds from a single cyclamen hybrid produced polymorphic banding patterns that were attributed to genetic variability present in the female and male inbred parents. These results show that RAPD makers can be used to quickly assess the genetic purity of selected cultivars of these two flower seed crops.

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