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Protocol for Artificial MicroRNA Mediated Over-Expression of miR820 in Indica Rice

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DOI: 10.4236/ajps.2015.612196    3,264 Downloads   3,916 Views   Citations

ABSTRACT

In the present study, we illustrate the strategy and protocol required to generate rice transgenics over-expressing the 21-nt form of Osa-miR820. The miR exists in two size variants of 21-nt and 24-nt so the natural precursor cannot be employed for the purpose of miR over-expression as the cellular machinery can process both size variants thereby masking the role of PTGS regulation. Hence, we adopted the artificial miR technology to specifically over-express the 21-nt species in the transgenics. During the course of experiments it was observed that the amiR constructs probably interfered with the regeneration of the transformed callus, necessitating protocol modifications. The results indicate the successful over-expression of the 21-nt miR species. These plants can serve as a useful source for the functional dissection of the role played by the 21-nt Osa-miR820 species. They will also be valuable in highlighting the importance for the existence of a dual mode of miR mediated target regulation.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

Sharma, N. , Panchal, S. and Sanan-Mishra, N. (2015) Protocol for Artificial MicroRNA Mediated Over-Expression of miR820 in Indica Rice. American Journal of Plant Sciences, 6, 1951-1961. doi: 10.4236/ajps.2015.612196.

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