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Sources of resistance to tobacco streak virus in Wild Arachis (Fabaceae: Papilionoidae) Germplasm

dc.contributor.authorKalyani, G.
dc.contributor.authorReddy, A.S.
dc.contributor.authorKumar, P.L.
dc.contributor.authorRao, R.V.D.J.P.
dc.contributor.authorAruna, R.
dc.contributor.authorWaliyar, F.
dc.contributor.authorNigam, S.N.
dc.date.accessioned2019-12-04T11:14:13Z
dc.date.available2019-12-04T11:14:13Z
dc.date.issued2007-12
dc.identifier.citationKalyani, G., Reddy, A.S., Kumar, P.L., Rao, R.P., Aruna, R., Waliyar, F. & Nigam, S.N. (2007). Sources of resistance to Tobacco streak virus in wild Arachis (Fabaceae: Papilionoidae) germplasm. Plant Disease, 91(12), 1585-1590.
dc.identifier.issn0191-2917
dc.identifier.urihttps://hdl.handle.net/20.500.12478/2689
dc.descriptionArticle purchased
dc.description.abstractStem necrosis disease caused by Tobacco streak virus (TSV), first recognized in 2000, has emerged as a potential threat to peanut (Arachis hypogaea) in southern states of India. The virus induces severe necrosis of shoots leading to death of the plant, and plants that survive are malformed, with severe reduction in pod yield. All the currently grown peanut cultivars in India are highly susceptible to the virus. Therefore, wild relatives of peanut were evaluated to identify potential sources of resistance to TSV infection. In all, 56 germplasm accessions from 20 wild Arachis spp. in four sections (Arachis, Erectoides, Procumbente, and Rhizomatosae), along with susceptible peanut cultivars (JL 24 and K 1375), were evaluated for resistance to TSV under greenhouse conditions using mechanical sap inoculations. Systemic virus infection, determined by enzyme-linked immunosorbent assay (ELISA), in the test accessions ranged between 0 and 100%. Twenty-four accessions in section Arachis that had 0 to 35% systemically infected plants were retested, and systemic infection was not detected in eight of these accessions in repeated trials in the greenhouse. These are International Crops Research Institute for the Semi-Arid Tropics groundnut (ICG) accession nos. 8139, 8195, 8200, 8203, 8205, and 11550 belonging to A. duranensis; ICG 8144 belonging to A. villosa; and ICG 13210 belonging to A. stenosperma. Even though the resistant accessions had 0 to 100% TSV infection in inoculated leaves, TSV was not detected in the subsequently emerged leaves. This is the first report of TSV resistance in Arachis spp. The eight TSV resistant accessions are cross compatible with A. hypogaea for utilization in breeding for stem necrosis disease resistance.
dc.description.sponsorshipIndian Council of Agricultural Research
dc.format.extent1585-1590
dc.language.isoen
dc.subjectDiseases
dc.subjectArachis Hypogaea
dc.subjectIlarvirus
dc.subjectThrips
dc.subjectStem Necrosis
dc.subjectTobacco Streak Virus
dc.subjectGermplasm
dc.titleSources of resistance to tobacco streak virus in Wild Arachis (Fabaceae: Papilionoidae) Germplasm
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.affiliationInternational Crops Research Institute for the Semi-Arid Tropics
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationNational Bureau of Plant Genetic Resources, India
cg.coverage.regionAsia
cg.coverage.regionSoutheast Asia
cg.coverage.countryIndia
cg.creator.identifierP. Lava Kumar: 0000-0003-4388-6510
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectPlant Diseases
cg.iitasubjectPlant Genetic Resources
cg.iitasubjectPlant Health
cg.iitasubjectPlant Production
cg.journalPlant Disease
cg.howpublishedFormally Published
cg.accessibilitystatusOpen Access
local.dspaceid93611
cg.targetaudienceScientists
cg.identifier.doihttps://doi.org/10.1094/PDIS-91-12-1585


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