Figure 2.

F. vesca lines called "Yellow Wonder" may not have the same genotype. Amplification of a region of a gene encoding a mitochondrial low molecular weight heat shock protein shows differences between "Yellow Wonder" plants from two different sources (Y1 and Y2). Primers were designed to amplify a region containing an intron, and reveal polymorphisms between Y1 and Y2, as well as between subspecies of F. vesca (Y1, Y2 and Pawt) and between different diploid Fragaria species, F. vesca and F. iinumae (J-17). The same primers were used to amplify this region from a heat treated "Yellow Wonder" (Y2) seedling cDNA library (cDNA). bp: size markers in base pairs. M: size ladder.