Browsing by Author "Hari-Gowthem, Gunaseelen"

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    Regulation of development and stress response by miRNAs
    (Springer, 2017) Yadav, Amita; Hari-Gowthem, Gunaseelen; Muthamilarasan, Mehanathan; Prasad, Manoj
    MicroRNAs (miRNAs) are ~18 to 24-nucleotide non-coding RNAs, which regulate gene expression at the transcriptional and post-transcriptional levels through cleavage or translational inhibition of target mRNA. In addition to the key regulatory processes such as cellular, biological‚ and developmental functions, a considerable fraction of miRNAs have been shown to play important roles in abiotic and biotic stress responses, such as nutritional deficiency, drought, salinity, cold, heat, oxidative stress, and heavy metal. Being a naturally stress tolerant crop, foxtail millet has invited research on genome-wide identification and characterization of miRNAs for their role(s) in abiotic stress. In this context, the present chapter summarizes the classes of small RNAs with emphasis on miRNAs and provides a snapshot on their roles in stress regulatory machinery in foxtail millet.
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    Tomato yellow leaf curl virus: impact, challenges, and management
    (Elsevier B.V., 2020) Prasad, Ashish; Sharma, Namisha; Hari-Gowthem, Gunaseelen; Muthamilarasan, Mehanathan; Prasad, Manoj
    Tomato yellow leaf curl virus (TYLCV) is one of the most studied plant viral pathogens because it is the most damaging virus for global tomato production. In order to combat this global threat, it is important that we understand the biology of TYLCV and devise management approaches. The prime objective of this review is to highlight management strategies for efficiently tackling TYLCV epidemics and global spread. For that purpose, we focus on the impact TYLCV has on worldwide agriculture and the role of recent advances for our understanding of TYLCV interaction with its host and vector. Another important focus is the role of recombination and mutations in shaping the evolution of TYLCV genome and geographical distribution.