True-to-type micropropagated plants of para rubber (Hevea brasiliensis Müll. Arg.) via somatic embryogenesis

  • Rujira TISARUM National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani
  • Thapanee SAMPHUMPHUANG National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani
  • Wittaya PROMMEE Chachoengsao Rubber Research Center, Rubber Research Institute, Chachoengsao
  • Chareerat MONGKOLSIRIWATANA Kasetsart University, Faculty of Liberal Arts and Science, Division of Genetics, Kampangsan Campus, Nakhon Pathom
  • Suriyan CHA-UM National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani
Keywords: DNA fingerprinting; para rubber; RAPD; SCoT; SSRs


Plant micropropagation via somatic embryogenesis is a powerful technique for rapid mass propagation, especially in para rubber (Hevea brasiliensis Müll. Arg.). However, somaclonal variations are the major limitation of this process. To date, DNA fingerprinting, i.e., RAPD (Randomly Amplified Polymorphic DNA), Star Codon Targeted (SCoT), and SSRs (Simple Sequence Repeats), is one of the most successful technologies to detect the genetic fidelity in the somatic embryos. The aim of present study was to induce somatic embryos from inner integument explants of para rubber cv. ‘RRIM 600’ at different developmental stages and subsequent acclimatization and transplantation (under greenhouse and field conditions) of the propagated seedlings. The genetic stability of the plants derived from somatic embryos was also analysed in comparison to the mother plant using RAPD, SCoT and SSRs markers. Somatic embryos derived from inner integuments of 5-week-old immature seeds after pollination were more efficient than older and younger seeds. In addition, para rubber mother plants cv. ‘RRIM600’ and plants derived from somatic embryogenesis demonstrated the same pattern of DNA fragments, as confirmed by three PCR-based techniques, RAPD, SCoT and SSRs, whereas these in the pattern were different from ‘RRIT 226’, ‘PB 235’, ‘PB 251’, ‘PB 255’ and ‘BMP 24’. Interestingly, T2 plant was found to possess somaclonal variations when compared with mother plant. Based on the results, we confirm that the plants derived from somatic embryogenesis of para rubber cv. ‘RRIM 600’ were true-to-type to that of ‘RRIM 600’ master stock.


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How to Cite
TISARUM, R., SAMPHUMPHUANG, T., PROMMEE, W., MONGKOLSIRIWATANA, C., & CHA-UM, S. (2020). True-to-type micropropagated plants of para rubber (Hevea brasiliensis Müll. Arg.) via somatic embryogenesis. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 48(4), 1901-1914.
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