Cloning of VpSBP16 from V . pesudoreticulata . ( A ) PCR amplification of the full-length VpSBP16 cDNA and ( B ) DNA from Vitis pseudoreticulata . M1: DNA marker DL5000; M2: DNA marker λ-Hind III; 1: VpSBP16 PCR product from cDNA; 2 and 3: VpSBP16 PCR product.