Preliminary Assessment of Genetic Diversity and Phenetic Relations for Section Lasiocarpa by Means of Heterologous SSR Markers

Abstract:

Naranjilla (Solanum quitoense Lam.) is an Andean fruit crop with great economic prospects in global export markets. The conservation and improvement of this crop greatly depend on the quantification of its genetic variability and on finding alternative sources of diversity in the Lasiocarpa section. The main objective of this study was to evaluate the extent to which SSR primer pairs specifically designed for Solanum tuberosum L. could be used in genetic diversity and phenetic studies of S. quitoense and its wild relatives from the Lasiocarpa section. Thirteen nuclear SSR primer pairs, out of 48 tested, were successfully transferred. Seven of these primers produced a total of 25 alleles and an average polymorphic information content (PIC) value of 0.4030. The genetic similarity index (Jaccard) between all accessions analyzed was 0.46 (0.54 dissimilarity), a value expected to increase with a greater sample population …

Año de publicación:

2008

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