Publications of NIPGR Scientists

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Author: search.filters.author.Chatterjee, SouravSubject: search.filters.subject.Gene expression

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    Single cell type specific RNA isolation and gene expression analysis in rice using laser capture microdissection (LCM)-based method
    (Springer Nature Publishing AG, 2021) Gautam, Vibhav; Chatterjee, Sourav; Sarkar, Ananda K.
    The success of single cell type-specific gene expression or functional study largely depends on the efficient isolation of high-quality RNA from them. Laser capture microdissection (LCM) is an efficient technique that allows accessing and dissecting out a specific individual cell or cell type from a microscopic heterogeneous tissue in a minimally disruptive way. Here, we describe an efficient and inexpensive LCM-based method for the extraction of RNAs with high yield and integrity from laser-microdissected mesophyll and bundle sheath cells of rice leaf. The integrity of isolated RNA is assessed with bioanalyzer analysis, and the presence of mRNA of a specific gene is validated through RT-PCR. This RNA could further be used for uncovering single cell type-specific gene expression signature using next-generation transcriptome sequence or through regular RT-PCR.
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    Whole mount in situ localization of miRNAs and target mRNA transcripts in plants
    (Springer Nature Publishing AG, 2019) Gautam, Vibhav; Singh, Archita; Verma, Swati; Singh, Sharmila; Chatterjee, Sourav; Sarkar, Ananda K.
    The functional characterization of miRNAs often involves understanding of their spatiotemporal expression, which mostly relies on reporter-based or in situ hybridization studies. The available in situ localization methods follow separate protocols for pre-hybridization, hybridization, post-hybridization, and detection steps for both miRNA and mRNA transcripts in plants. In this study, we present a single method which can be used for whole mount in situ localization of both miRNAs and mRNAs in different plant tissues. Our modified method provides enhanced sensitivity for the localization of miRNA and their target transcripts. Consequently, a less laborious, time-saving, economic and efficient method has been proposed by the modification of pre-hybridization, hybridization, post-hybridization and detection steps.