JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2010, Vol. 34 ›› Issue (05): 29-33.doi: 10.3969/j.jssn.1000-2006.2010.05.006

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Comparison of RAPD fingerprints of fruiting mei generated by different electrophoresis and characterization of the amplified sequences

LI Xiaoying, SONG Changnian, ZHANG Yanping, WANG Yujuan, ZHANG Zhen, FANG Jinggui*   

  1. College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
  • Online:2010-10-08 Published:2010-10-08

Abstract: PCR amplification was conducted with 11 bp primers by the optimized RAPD protocol and we used agarose and polyacrylamide gel (PAGE) electrophoresis to detect RAPD amplification products from 16 fruiting mei cultivars. The results showed that the total and polymorphic bands of PAGE were 204 and 145, while 91 and 58 on agarose gel. The polygenetic tree also showed that all the 16 cultivars could be distinguished unambiguously and their relationship was revealed according to the fingerprinting profiles obtained by PAGE electrophoresis system. Random cloning and sequencing of 20 amplified fragments showed that all these segments were RAPD products generated by the corresponding primers. Among the sequenced fragments, four sequences were from protein coding regions, suggesting RAPD could randomly amplify both coding and noncoding sequences. Thus, genetic variability of different fruiting mei cultivars could be properly reflected by RAPD marker.

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