Abstracts of Papers Presented at the 99th Annual Meeting of the Potato Association of America Portland, Maine, USA July 19–23, 2015
Redesigning Diploid Potato Breeding with Self-Compatibility
Alsahlany, M1, D Zarka1, J Coombs1, S Janksy2, and DS Douches1
1Dept. of Plant, Soil, and Microbial Sciences, Michigan State University, E. Lansing, MI, USA; 2Dept. of Horticulture, University of Wisconsin, Madison, WI, USA.
Genetic gains cannot be easily fixed in potato due to obligatory outbreeding. The wild diploid species have biodiversity for economic traits that the potato breeders can use to produce new varieties. Using the dominant self-incompatibility inhibitor Sli gene from M6 we are modifying self-incompatible diploid species hybrids to a self-compatible population that will be used to create diploid inbred lines. We are developing a recurrent selection population for photoperiod adaptability, self-compatibility and cultivated tuber traits. The germplasm is composed of a mixture of five species (Solanum berthaultii, S. chacoence, S. microdontum, S. tuberosum Grp. Phureja and S. tarijense). The foundation lines and...