alexa An efficient and reproducible method for regeneration of whole plants from mature seeds of a high yielding Indica rice (Oryza sativa L.) variety PAU 201.


Advancements in Genetic Engineering

Author(s): Wani SH, Sanghera GS, Gosal SS

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Abstract Tissue culture is one of the tools necessary for genetic engineering and many other breeding programs. Moreover, selection of high regenerating rice varieties is a pre-requisite for success in rice biotechnology. In this report we established a reproducible plant regeneration system through somatic embryogenesis. The explants used for regeneration were embryogenic calli derived from mature seeds cultured on callus induction media. For callus induction mature seeds were cultured on MS medium containing 30 g/l sucrose combined with 560 mg/l proline and 1.5-3.5 mg/l 2,4-D and 0.5-1.5 mg/l Kin. For plant regeneration, embryogenic calli were transferred to MS medium containing 30 g/l sucrose, supplemented with 1.0-3.0 mg/l BAP, 0.5-1.5 mg/l Kin and 0.5-1.5 mg/l NAA. The highest frequency of callus induction (44.4\%) was observed on the MS medium supplemented with 2.5 mg/l 2,4-D, 0.5 mg/l Kin, 560 mg/l proline and 30 g/l sucrose. The highest frequency of shoot regeneration (42.5\%) was observed on the MS medium supplemented with 2.0 mg/l BAP, 0.5 mg/l NAA and 0.5 mg/l Kin. The plantlets were hardened and transferred to soil in earthen pots. The developed method was highly reproducible. The in vitro developed plants showed normal growth and flowering under glasshouse conditions. Copyright © 2011 Elsevier B.V. All rights reserved. This article was published in N Biotechnol and referenced in Advancements in Genetic Engineering

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