Epistatic interactions of major effect drought QTLs with genetic background loci determine grain yield of rice under drought stress

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cg.creator.identifierRajeev Varshney: 0000-0002-4562-9131
cg.identifier.doihttps://doi.org/10.1038/s41598-019-39084-7en
cg.issn2045-2322en
cg.issue1en
cg.journalScientific Reportsen
cg.volume9en
dc.contributor.authorYadav, Shaileshen
dc.contributor.authorSandhu, Nitikaen
dc.contributor.authorMajumder, Ratna Ranien
dc.contributor.authorDixit, Shalabhen
dc.contributor.authorKumar, Santoshen
dc.contributor.authorSingh, S.P.en
dc.contributor.authorMandal, N.P.en
dc.contributor.authorDas, S.P.en
dc.contributor.authorYadaw, Ram Baranen
dc.contributor.authorSingh, Vikas Kumaren
dc.contributor.authorSinha, Pallavien
dc.contributor.authorVarshney, Rajeev K.en
dc.contributor.authorKumar, Arvinden
dc.date.accessioned2024-12-19T12:54:14Zen
dc.date.available2024-12-19T12:54:14Zen
dc.identifier.urihttps://hdl.handle.net/10568/164728
dc.titleEpistatic interactions of major effect drought QTLs with genetic background loci determine grain yield of rice under drought stressen
dcterms.abstractEpistatic interactions of QTLs with the genetic background and QTL-QTL interaction plays an important role in the phenotypic performance of introgression lines developed through genomic-assisted breeding (GAB). In this context, NIL pairs developed with various drought QTL (qDTY) combinations in the genetic background of IR64, TDK1-Sub1and Savitri backgrounds were utilized to study the interactions. Multi-season phenotyping of NIL pairs harboring similarqDTYcombinations provided contrasting performance for grain yield under drought (RS) (classified as high and low yielding NILs) but nearly similar performance under non-stress(NS) conditions. Genome wide genotyping data revealed a total of 16, 5 and 6 digenic interactions were detected under RS conditions in low yielding NILs of IR64, TDK1-Sub1and Savitri respectively while no significant interaction was found in high yielding NILs under RS and NS conditions in any of the genetic backgrounds used in this study. It is evident from this study that existence of epistatic interactions between QTLs with genetic background, QTL-QTL interaction and interactions among background markers loci itself on different chromosomes influences the expression of a complex trait such as grain yield under drought. The generated information will be useful in all the GAB program of across the crops for precise breeding.en
dcterms.accessRightsOpen Access
dcterms.available2019-02-22
dcterms.bibliographicCitationYadav, Shailesh; Sandhu, Nitika; Majumder, Ratna Rani; Dixit, Shalabh; Kumar, Santosh; Singh, S. P.; Mandal, N. P.; Das, S. P.; Yadaw, Ram Baran; Singh, Vikas Kumar; Sinha, Pallavi; Varshney, Rajeev K. and Kumar, Arvind. 2019. Epistatic interactions of major effect drought QTLs with genetic background loci determine grain yield of rice under drought stress. Sci Rep, Volume 9, no. 1en
dcterms.issued2019-02-22
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherSpringeren
dcterms.typeJournal Article

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