Abstract
Virus-induced gene silencing (VIGS) has emerged as a fast and efficient reverse and forward genetics tool to study gene function in model plants as well as in agriculturally important plants. In addition, VIGS approach has been successfully used to provide insights into the role of several genes and regulators involved in plant secondary metabolism. Ashwagandha (Withania somnifera) is an important Indian medicinal plant that accumulates pharmacologically important triterpenoid steroidal lactones, which are collectively termed as withanolides. W. somnifera being a highly recalcitrant plant for genetic transformation, Tobacco rattle virus (TRV)-mediated VIGS was established by our group to facilitate understanding of withanolides' pathway. Here, we describe a detailed procedure to carry out VIGS for gene function studies in W. somnifera.
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