Preparation of S-RNase cDNA Microarray and Its Application in Identifying Pear Cultivars S-genotypes Identifying Pear Cultivars S-genotypes Using Gene Chips Identifying Pear Cultivars S-genotypes Using Gene Chips Application of Genechip in Screening the Stem Differentiation-Related Genes Gene screening of Buyang Huanwu Decoction used for delaying denervated tibial muscle atrophy of rats Screening Resistant-Related Genes to Powdery Mildew in Haynaldia villosa Using Barley Genechip and Studying Its Mechanism of Resistance