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dc.contributor.authorDixon, Alfred G.O.
dc.contributor.authorBramel-Cox, P.J.
dc.contributor.authorHarvet, T.L.
dc.date.accessioned2019-12-04T11:34:17Z
dc.date.available2019-12-04T11:34:17Z
dc.date.issued1991
dc.identifier.citationDixon, A.G.O., Bramel-Cox, P.J. & Harvet, T.L. (1991). Complementarity of genes for resistance to greenbug [Schizaphis graminum (Rondani)], biotype E, in sorghum [Sorghum bicolor (L.) Moench]. Theoretical and Applied Genetics, 81(1), 105-110.
dc.identifier.issn0040-5752
dc.identifier.urihttps://hdl.handle.net/20.500.12478/5941
dc.description.abstractGene complementarity among various sources of resistance to greenbug biotype E was assessed. Analysis of the F2 generation of crosses between susceptible and resistant parents (mating 1) and among sources of resistance (mating 2) suggested that resistance in sorghum to greenbug biotype E was complexly inherited and, to some extent, dependent on the nature of both the resistant and susceptible parents. Positive transgressive segregation in the F2 generations of both matings was found to be due to effective plus factors, contributed by both parents in a cross, which complemented each other. The number of plus factors ranged from one to two in the susceptible parents and from two to five in the resistant parents of mating 1, and from one to five in the parents of mating 2. The consistently significant reciprocal effects shown by Sarvasi and PI264453 indicated that these sources had major factors for resistance in their cytoplasms, which were expressed in all their crosses. The results from this study indicated that the sources of resistance complemented each other to give increased number of F2 segregates with increased resistance. Thus, it should be possible to increase and diversify resistance of sorghum to greenbug biotype E by accumulating different, effective plus factors from various sources through recurrent selection.
dc.language.isoen
dc.subjectEpistasis
dc.subjectGenetics
dc.subjectGreenbugs
dc.subjectSorghum
dc.subjectCytoplasm
dc.titleComplementarity of genes for resistance to greenbug [Schizaphis graminum (Rondani)], biotype E, in sorghum [Sorghum bicolor (L.) Moench]
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationKansas State University
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.isijournalISI Journal
cg.authorship.typesCGIAR and advanced research institute
cg.iitasubjectGenetic Improvement
cg.iitasubjectPests Of Plants
cg.iitasubjectGrain Legumes
cg.accessibilitystatusLimited Access
local.dspaceid105871


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