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dc.contributor.authorBhaskarla, Vijay
dc.contributor.authorZinta, Gaurav
dc.contributor.authorFord, Rebecca
dc.contributor.authorJain, Mukesh
dc.contributor.authorVarshney, Rajeev K
dc.contributor.authorMantri, Nitin
dc.date.accessioned2020-08-24T05:29:34Z
dc.date.available2020-08-24T05:29:34Z
dc.date.issued2020
dc.identifier.issn1661-6596
dc.identifier.doi10.3390/ijms21051781
dc.identifier.urihttp://hdl.handle.net/10072/396712
dc.description.abstractDrought adversely affects crop production across the globe. The root system immensely contributes to water management and the adaptability of plants to drought stress. In this study, drought-induced phenotypic and transcriptomic responses of two contrasting chickpea (Cicer arietinum L.) genotypes were compared at the vegetative, reproductive transition, and reproductive stages. At the vegetative stage, drought-tolerant genotype maintained higher root biomass, length, and surface area under drought stress as compared to sensitive genotype. However, at the reproductive stage, root length and surface area of tolerant genotype was lower but displayed higher root diameter than sensitive genotype. The shoot biomass of tolerant genotype was overall higher than the sensitive genotype under drought stress. RNA-seq analysis identified genotype-and developmental-stage specific differentially expressed genes (DEGs) in response to drought stress. At the vegetative stage, a total of 2161 and 1873 DEGs, and at reproductive stage 4109 and 3772 DEGs, were identified in the tolerant and sensitive genotypes, respectively. Gene ontology (GO) analysis revealed enrichment of biological categories related to cellular process, metabolic process, response to stimulus, response to abiotic stress, and response to hormones. Interestingly, the expression of stress-responsive transcription factors, kinases, ROS signaling and scavenging, transporters, root nodulation, and oxylipin biosynthesis genes were robustly upregulated in the tolerant genotype, possibly contributing to drought adaptation. Furthermore, activation/repression of hormone signaling and biosynthesis genes was observed. Overall, this study sheds new insights on drought tolerance mechanisms operating in roots with broader implications for chickpea improvement.
dc.description.peerreviewedYes
dc.languageEnglish
dc.publisherMDPI
dc.relation.ispartofpagefrom1781
dc.relation.ispartofissue5
dc.relation.ispartofjournalInternational Journal of Molecular Sciences
dc.relation.ispartofvolume21
dc.subject.fieldofresearchOther Chemical Sciences
dc.subject.fieldofresearchGenetics
dc.subject.fieldofresearchOther Biological Sciences
dc.subject.fieldofresearchcode0399
dc.subject.fieldofresearchcode0604
dc.subject.fieldofresearchcode0699
dc.subject.keywordsScience & Technology
dc.subject.keywordsLife Sciences & Biomedicine
dc.subject.keywordsPhysical Sciences
dc.subject.keywordsBiochemistry & Molecular Biology
dc.subject.keywordsChemistry, Multidisciplinary
dc.titleComparative Root Transcriptomics Provide Insights into Drought Adaptation Strategies in Chickpea (Cicer arietinum L.)
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationBhaskarla, V; Zinta, G; Ford, R; Jain, M; Varshney, RK; Mantri, N, Comparative Root Transcriptomics Provide Insights into Drought Adaptation Strategies in Chickpea (Cicer arietinum L.), International Journal of Molecular Sciences, 2020, 21 (5), pp. 1781
dcterms.dateAccepted2020-03-03
dcterms.licensehttp://creativecommons.org/licenses/by/4.0/
dc.date.updated2020-08-24T05:24:34Z
dc.description.versionPublished
gro.rights.copyright© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
gro.hasfulltextFull Text
gro.griffith.authorFord, Rebecca


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