High frequency in vitro plantlet regeneration in Solanum trilobatum L., an important ethno-medicinal plant and confirmation of genetic fidelity of R1 plantlets by using ISSR and RAPD markers

Autor: Christopher Thammidala, Sreenu Pendli, Rajender Korra, Prasad Bylla, Phanikanth Jogam, Gulab Khan Rohela
Rok vydání: 2019
Předmět:
Zdroj: Vegetos. 32:508-520
ISSN: 2229-4473
DOI: 10.1007/s42535-019-00069-6
Popis: An efficient and reproducible protocol was developed for in vitro clonal propagation of Solanum trilobatum L., an ethno-medicinally important plant. Leaf, stem and cotyledon explants were used for callus induction and shoot regeneration via indirect organogenesis. Initially, maximum amounts (mg) of green friable callus (312.86 ± 0.50, 285.3 ± 0.40 and 305.13 ± 0.62) was induced from leaf, stem and cotyledon explants, respectively, on Murashige and Skoog (MS) medium supplemented with 13.57 μM L−1 of 2,4-dichloro phenoxy acetic acid (2,4-D) and 2.21 μM L−1 of 6-benzylaminopurine (BAP), after 4 weeks of culture. Highest mean number of shoots (69.2 ± 0.73, 34.1 ± 0.62 and 57.1 ± 0.62) were differentiated de novo from leaf, stem and cotyledon calluses, respectively, when cultured on MS medium amended with 2.27 μM L−1 of Thidiazuron (TDZ) and 2.68 μM L−1 of Naphthaleneacetic acid (NAA), after 4 weeks of culture. Maximum rooting response (97%) with mean number of roots (31.7 ± 0.61 roots per shoot) was observed from shoots when cultured on half strength MS medium supplemented with 4.90 μM L−1 of indole-3-butyric acid (IBA), after 4 weeks of culture. In vitro raised plantlets (R1) of S. trilobatum were hardened in plastic pots, acclimatized in green house and successfully transferred to field conditions with 82% survivability. ISSR and RAPD based PCR banding profile of the acclimated R1 plantlets was confirmed as synonymous to the mother plant.
Databáze: OpenAIRE
Externí odkaz: