Comparative analysis delineates the transcriptional resistance mechanisms for pod borer resistance in the pigeonpea wild relative Cajanus scarabaeoides (L.) Thouars

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cg.authorship.typesCGIAR and developing country instituteen
cg.authorship.typesCGIAR and advanced research instituteen
cg.contributor.affiliationInternational Livestock Research Instituteen
cg.contributor.affiliationQueensland University of Technologyen
cg.contributor.affiliationKenyatta Universityen
cg.contributor.donorDepartment of Foreign Affairs and Trade, Australiaen
cg.contributor.donorSyngenta Foundation for Sustainable Agricultureen
cg.contributor.donorBill & Melinda Gates Foundationen
cg.contributor.donorDepartment for International Development, United Kingdomen
cg.contributor.donorSwedish International Development Cooperation Agencyen
cg.creator.identifierIsaac Njaci: 0000-0001-9649-6650en
cg.creator.identifierSita Ghimire: 0000-0001-8930-1384en
cg.howPublishedFormally Publisheden
cg.identifier.doihttps://doi.org/10.3390/ijms22010309en
cg.isijournalISI Journalen
cg.issn1422-0067en
cg.issue1en
cg.journalInternational Journal of Molecular Sciencesen
cg.reviewStatusPeer Reviewen
cg.subject.ilriCROPSen
cg.subject.ilriLEGUMESen
cg.subject.ilriPESTSen
cg.volume22en
dc.contributor.authorNjaci, Isaacen
dc.contributor.authorNgugi-Dawit, A.en
dc.contributor.authorOduor, R.O.en
dc.contributor.authorKago, Leahen
dc.contributor.authorWilliams, B.en
dc.contributor.authorHoang, L.T.M.en
dc.contributor.authorMundree, S.G.en
dc.contributor.authorGhimire, Sita R.en
dc.date.accessioned2021-01-21T17:50:58Zen
dc.date.available2021-01-21T17:50:58Zen
dc.identifier.urihttps://hdl.handle.net/10568/110926
dc.titleComparative analysis delineates the transcriptional resistance mechanisms for pod borer resistance in the pigeonpea wild relative Cajanus scarabaeoides (L.) Thouarsen
dcterms.abstractInsect pests pose a serious threat to global food production. Pod borer (Helicoverpa armigera (Hübner)) is one of the most destructive pests of leguminous crops. The use of host resistance has been an effective, environmentally friendly and sustainable approach for controlling several agricultural pests. The exploitation of natural variations in crop wild relatives could yield pest-resistant crop varieties. In this study, we used a high-throughput transcriptome profiling approach to investigate the defense mechanisms of susceptible cultivated and tolerant wild pigeonpea genotypes against H. armigera infestation. The wild genotype displayed elevated pest-induced gene expression, including the enhanced induction of phytohormone and calcium/calmodulin signaling, transcription factors, plant volatiles and secondary metabolite genes compared to the cultivated control. The biosynthetic and regulatory processes associated with flavonoids, terpenes and glucosinolate secondary metabolites showed higher accumulations in the wild genotype, suggesting the existence of distinct tolerance mechanisms. This study provides insights into the molecular mechanisms underlying insect resistance in the wild pigeonpea genotype. This information highlights the indispensable role of crop wild relatives as a source of crucial genetic resources that could be important in devising strategies for crop improvement with enhanced pest resistance.en
dcterms.accessRightsOpen Accessen
dcterms.audienceScientistsen
dcterms.available2020-12-30en
dcterms.bibliographicCitationNjaci, I., Ngugi-Dawit, A., Oduor, R.O., Kago, L., Williams, B., Hoang, L.T.M., Mundree, S.G. and Ghimire, S.R. 2021. Comparative analysis delineates the transcriptional resistance mechanisms for pod borer resistance in the pigeonpea wild relative Cajanus scarabaeoides (L.) Thouars. International Journal of Molecular Sciences 22(1):309.en
dcterms.issued2021-01-01en
dcterms.languageenen
dcterms.licenseCC-BY-4.0en
dcterms.publisherMDPIen
dcterms.subjectpigeon peasen
dcterms.subjectcropsen
dcterms.subjectlegumesen
dcterms.subjecthelicoverpa armigeraen
dcterms.subjectpest insectsen
dcterms.subjectspectroscopyen
dcterms.subjectmolecular biologyen
dcterms.subjectcatalysisen
dcterms.typeJournal Articleen

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