|Del Dio, A|
Submitted to: American Journal of Potato Research
Publication Type: Abstract Only
Publication Acceptance Date: 4/15/2008
Publication Date: 4/1/2009
Citation: Del Dio, A., Bamberg, J.B., Fernandez, C.J., Zorrilla, C. 2009. Update on the Comparative Assessment of Genetic Diversity Between Accessible and Remote Potato Populations [abstract]. American Journal of Potato Research. 86:141. Interpretive Summary:
Technical Abstract: There is limited information on the organization of potato genetic diversity (GD) in natural habitats. Answering questions on that topic has significant implications for germplasm conservation -- for example, targeting habitats and populations with greater genetic richness or distinctiveness for collecting. This study made comparisons of GD expressed in geographically highly accessible habitats with that of nearby locations much more difficult to access. This study evaluated populations of S. stoloniferum (formerly S. fendleri) collected from geographically distinct locations in Arizona as plant models. The genetic analysis examined DNA samples from these plants, and included AFLP markers to estimate parameters of genetic variation. The results indicated that populations from geographically distinct origins can be separated by the markers and that difficult-to-access populations may be more polymorphic for some AFLP loci. In summary, this study presents insights on the genetic organization of GD of potatoes in their natural habitats, and could help in planning collecting and conservation strategies.