| major-gene resistance to the rust pathogen coleosporium ipomoeae is common in natural populations of ipomoea purpurea. | the genetic basis of resistance to pathogens is well studied in crops, yet our understanding of the evolution of this trait in natural populations will be improved by determining how resistance is inherited in a wide range of plant-pathogen interactions. here, we examined resistance to coleosporium ipomoeae, a common fungal rust pathogen of ipomoea purpurea. natural populations across north carolina, south carolina, and georgia (usa) were surveyed for the presence of c. ipomoeae and seeds were c ... | 2006 | 16771989 |