ARS | Publication request: The Use of Solanum Verrucosum to Access 2x, 1EBN Germplasm

Submitted to: American Journal of Potato Research
Publication Type: Abstract Only
Publication Acceptance Date: April 18, 2008
Publication Date: April 1, 2009
Citation: Jansky, S.H., Hamernik, A.J., Bae, J.J. 2009. The Use of Solanum Verrucosum to Access 2x, 1EBN Germplasm [abstract]. American Journal of Potato Research. 86:148.

Technical Abstract: Wild 2x (1EBN) Solanum species are a rich source of disease resistance, pest resistance, and tuber quality traits. They are typically not sexually compatible with potato cultivars (4x, 4EBN) or haploids derived from them (2x, 2EBN). In this study, the wild 2x 2EBN Mexican species S. verrucosum (ver) was used as a bridge species to access 2x, 1EBN germplasm. Hybrids between ver as a female parent and S. cardiophyllum, S. chancayense, S. commersonii, S. pinnatisectum, S. trifidum, and S. tarnii were created. Most of the hybrids were crossable as females to diploid interspecific hybrids, but none was crossable as a male, even though stainable pollen was produced. Additional studies are underway to determine the effectiveness to ver as a bridge to introgress 2x, 1EBN germplasm into the cultivated potato.