ISHS Acta Horticulturae 708: V International Strawberry Symposium
THE DETECTION OF QTL ASSOCIATED WITH VEGETATIVE AND REPRODUCTIVE TRAITS IN DIPLOID FRAGARIA: A PRELIMINARY STUDY |
| Authors: | D.J. Sargent, N.H. Battey, M.J. Wilkinson, D.W. Simpson |
| Keywords: | Interval mapping, linkage map, quantitative trait loci |
| Abstract:
The genetic basis of traits exhibiting continuous variation can be studied through quantitative trait loci (QTL) mapping. Here we present the findings of an initial study to map QTL underlying both vegetative and reproductive traits in an interspecific diploid Fragaria mapping population constructed from an F2 cross between two closely-related species F. vesca x F. nubicola. Six phenotypic traits were measured in the mapping population, and nine significant (LOD >2.0) QTL explaining between 30.3 and 10.6% of the total phenotypic variance for the traits studied were detected. These QTL mapped to positions on four of the seven linkage groups of Fragaria, with four QTL clustering in one area of linkage group VI around the Seasonal flowering locus (S). | |
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