Utilization of microRNAs and their regulatory functions for improving biotic stress tolerance in tea plant [<i>Camellia sinensis</i> (L.) O. Kuntze]

Jeyaraj, Anburaj; Elango, Tamilselvi; Li, Xinghui; Guo, Guang-Qin

doi:10.1080/15476286.2020.1774987

Cited by 16 publications

(12 citation statements)

References 147 publications

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“…CsAGO1 seems to be the most ubiquitously expressed gene in all the tissues and various stress conditions considered in this study. It is one of the main components of gene silencing machinery and is known to participate in the biogenesis of most of the conserved miRNAs and siRNAs in tea 24 . In our study CsAGO1 seems to be ubiquitously expressed in all the tissues and various stress conditions in tea.…”

Section: Discussionmentioning

confidence: 99%

“…assamica ) varieties. Differentially expressed miRNAs responsible for regulating the expression of genes related to biotic and abiotic stresses, accumulation of secondary metabolites and growth and development in tea, have also been reviewed recently 23 , 24 . Genome-wide analysis of the AGO , DCL and RDR gene families will decipher the diversity in these gene families and their function in this important commercial crop.…”

Section: Introductionmentioning

confidence: 99%

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Genome-wide identification, evolutionary relationship and expression analysis of AGO, DCL and RDR family genes in tea

Krishnatreya

Baruah

Dowarah

et al. 2021

Sci Rep

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Three gene families in plants viz. Argonaute (AGOs), Dicer-like (DCLs) and RNA dependent RNA polymerase (RDRs) constitute the core components of small RNA mediated gene silencing machinery. The present study endeavours to identify members of these gene families in tea and to investigate their expression patterns in different tissues and various stress regimes. Using genome-wide analysis, we have identified 18 AGOs, 5 DCLs and 9 RDRs in tea, and analyzed their phylogenetic relationship with orthologs of Arabidopsis thaliana. Gene expression analysis revealed constitutive expression of CsAGO1 in all the studied tissues and stress conditions, whereas CsAGO10c showed most variable expression among all the genes. CsAGO10c gene was found to be upregulated in tissues undergoing high meristematic activity such as buds and roots, as well as in Exobasidium vexans infected samples. CsRDR2 and two paralogs of CsAGO4, which are known to participate in biogenesis of hc-siRNAs, showed similarities in their expression levels in most of the tea plant tissues. This report provides first ever insight into the important gene families involved in biogenesis of small RNAs in tea. The comprehensive knowledge of these small RNA biogenesis purveyors can be utilized for tea crop improvement aimed at stress tolerance and quality enhancement.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Genome-wide identification, evolutionary relationship and expression analysis of AGO, DCL and RDR family genes in tea

Krishnatreya

Baruah

Dowarah

et al. 2021

Sci Rep

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“…In tea, miRNAs such as novel-miR1, csn-miR426 and csn-miR482 are playing an essential role in disease resistance ( Jeyaraj et al, 2020 ). Jeyaraj et al (2017) identified miRNAs that are responsible for insect defense in tea plants, and miRNAs such as csn-miR156, csn-miR172, and csn-miR319 are also associated with biotic stress responses in tea.…”

Section: Functional Roles Of Mirnas In Agronomic Plantsmentioning

confidence: 99%

Functional role of microRNA in the regulation of biotic and abiotic stress in agronomic plants

Samynathan,

Venkidasamy,

Shanmugam

et al. 2023

Front. Genet.

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The increasing demand for food is the result of an increasing population. It is crucial to enhance crop yield for sustainable production. Recently, microRNAs (miRNAs) have gained importance because of their involvement in crop productivity by regulating gene transcription in numerous biological processes, such as growth, development and abiotic and biotic stresses. miRNAs are small, non-coding RNA involved in numerous other biological functions in a plant that range from genomic integrity, metabolism, growth, and development to environmental stress response, which collectively influence the agronomic traits of the crop species. Additionally, miRNA families associated with various agronomic properties are conserved across diverse plant species. The miRNA adaptive responses enhance the plants to survive environmental stresses, such as drought, salinity, cold, and heat conditions, as well as biotic stresses, such as pathogens and insect pests. Thus, understanding the detailed mechanism of the potential response of miRNAs during stress response is necessary to promote the agronomic traits of crops. In this review, we updated the details of the functional aspects of miRNAs as potential regulators of various stress-related responses in agronomic plants.

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“…The function of small RNAs (sRNAs) has been demonstrated in plant-herbivore interactions. In plants, sRNAs are divided into two major classes according to their roles, i.e., microRNAs (miRNAs), which are produced from single-strand stem-loop precursor structures, and short interfering RNAs (siRNAs), which are derived from double-strand RNA transcripts [93,94]. Both miRNAs and siRNAs, individually or in combination, can improve plant resistance against diseases [95].…”

Section: Epigenetic Regulationmentioning

confidence: 99%

Plant Responses to Herbivory, Wounding, and Infection

Mostafa

Wang

Zeng

et al. 2022

IJMS

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Plants have various self-defense mechanisms against biotic attacks, involving both physical and chemical barriers. Physical barriers include spines, trichomes, and cuticle layers, whereas chemical barriers include secondary metabolites (SMs) and volatile organic compounds (VOCs). Complex interactions between plants and herbivores occur. Plant responses to insect herbivory begin with the perception of physical stimuli, chemical compounds (orally secreted by insects and herbivore-induced VOCs) during feeding. Plant cell membranes then generate ion fluxes that create differences in plasma membrane potential (Vm), which provokes the initiation of signal transduction, the activation of various hormones (e.g., jasmonic acid, salicylic acid, and ethylene), and the release of VOCs and SMs. This review of recent studies of plant–herbivore–infection interactions focuses on early and late plant responses, including physical barriers, signal transduction, SM production as well as epigenetic regulation, and phytohormone responses.

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Utilization of microRNAs and their regulatory functions for improving biotic stress tolerance in tea plant [Camellia sinensis (L.) O. Kuntze]

Cited by 16 publications

References 147 publications

Genome-wide identification, evolutionary relationship and expression analysis of AGO, DCL and RDR family genes in tea

Genome-wide identification, evolutionary relationship and expression analysis of AGO, DCL and RDR family genes in tea

Functional role of microRNA in the regulation of biotic and abiotic stress in agronomic plants

Plant Responses to Herbivory, Wounding, and Infection

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