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ACTA HORTICULTURAE SINICA ›› 2006, Vol. 33 ›› Issue (2): 433-436.

• 研究简报 • Previous Articles     Next Articles

Dentification of Three Species in Bauhinia and Hybrid Origin of Bauhinia blakeana Using ISSR Markers

Luo Yuping1;GongWei1;Qiu Yingxiong1*;Yuk Sing Gibert Chan2*   

  1. (1Laboratory of Systematic and Evolutionary Botany and Biodiversity, College of Life Sciences, Zhejiang University, Hangzhou 310029, China; 2Department of Applied Biology and Chemical Technology, the Hongkong Polytechnic University, Hung Hom, Hongkong, China)
  • Received:2005-06-01 Revised:2005-08-09 Online:2006-04-25 Published:2006-04-25

Abstract: In this study, inter-simple sequence repeat (ISSR) was evaluated for its potential use in the identification of Bauhinia purpurea, B. blakeana and B. variegate. Of the 74 ISSR primers subjected to screening, 9 produced reproducible, polymorphic and discrepant fragments. Using these primers, 80 discernible DNA fragmentswere generated with 55 (68.8% ) being polymorphic bands. The average number of DNA bands amplified by each primer was 8.88. DNA profiles based on 8 primers have revealed potential diagnostic fingerprints which could contribute to the identification of 3 species in Bauhinia. Meanwhile, ISSR - PCR analysis revealed that the amplified fragments respectively unique to B. purpurea and B. variegate showed additivity in B. blakeana. The molecular evidence indicated that B. blakeana was a hybrid origin from B. purpurea and B. variegate.

Key words: Bauhinia, B. blakeana, B. purpurea, B. variegate, ISSR, DNA fingerprint