Figure 3
Characterization of 12 S-locus mutants. A genetic map of showing the position of five molecular markers relative to the S-locus is provided at the top of the figure. For each mutant, a deletion map is also provided. The genotype at the putative S supergene (two dotted lines indicate deletion of a gene) as well as the incompatibility phenotype of each mutant are shown. Pollen from S16L (long) and Bry (short) were used to investigate the incompatibility behaviour of mutant styles, whereas the phenotypes of mutant pollen were determined using the styles of S16L and short styles of self-incompatible T. scabra. The letter C denotes compatible, with pollen tubes growing to base of style; I—incompatible, with tubes not growing to base of style. F—cannot evaluate compatibility as few or no pollen grains adhere to stigma. TsPG represents the results for the style polygalacturonase whereas α-diox denotes the α-dioxygenase. The short-style-specific proteins are not expressed in the mutants assayed. Interesting characteristics of some mutants are in bold.
