Pear is a commercially important fruit tree widely distributed in China that displays GSI (gametophytic self-incompatibility). It is necessary to determine S-alleles and S-genotypes for clarifying the compatibility between cultivars prior to pear planting and breeding. The S-genotype analysis using conventional method of artificial pollination is time consuming and requires much labor. In addition, the results obtained are often ambiguous due to environmental factors. PCR-based molecular method, however, could rapidly and accurately identified ...
