Unearthing novel QTLs for enhancing rice straw quality through genome wide association mapping

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dc.creatorSah, R.P.
dc.creatorSubudhi, H.
dc.creatorAnilkumar, C.
dc.creatorAzharudeen, T.P.M.
dc.creatorRavi, Devulapalli
dc.creatorMarndi, B.C.
dc.creatorSamantaray, S.
dc.creatorBehera, S.
dc.creatorMohanty, S.P.
dc.creatorVarijakshapanicker, Padmakumar
dc.creatorBehera, L.
dc.creatorAnandan, A.
dc.date2025-12-31
dc.date2026-01-24T13:20:31Z
dc.date2026-01-24T13:20:31Z
dc.date.accessioned2026-06-27T16:49:33Z
dc.descriptionThe potential of rice straw as an energy source for ruminants is substantial and depends on improving its cell wall composition through genetic enhancement. This study mapped quantitative trait loci (QTLs) for key straw quality traits, including dry matter, ash, nitrogen, lignin, silica, cellulose, hemicellulose, and digestibility using 133 rice lines genotyped with 133 SSR markers. A total of 37 significant marker-trait associations were detected, with eight markers influencing multiple traits and three linked to all traits except silica. Candidate genes included OsSND2, OsMYB55/OsPL and PGIP for cellulose content, OsNADH-GOGAT2 for nitrogen content and OsPG1 for hemicellulose content. These loci, genes and associated markers offer valuable tools for breeding dual-purpose rice varieties that combine high grain yield with superior, more digestible straw.
dc.identifierhttps://hdl.handle.net/10568/180582
dc.identifier.urihttp://hdl.handle.net/123456789/134269
dc.languageen
dc.publisherRange Management Society of India
dc.rightsOpen Access
dc.sourceSah, R.P., Subudhi, H., Anilkumar, C., Azharudeen, T.P.M., Ravi, D., Marndi, B.C., Samantaray, S., Behera, S., Mohanty, S.P., Padmakumar, V., Behera, L. and Anandan, A. 2025. Unearthing novel QTLs for enhancing rice straw quality through genome wide association mapping. Range Management and Agroforestry 46 (2): 244-251.
dc.subjectanimal feeding
dc.subjectgenomics
dc.subjectrice
dc.titleUnearthing novel QTLs for enhancing rice straw quality through genome wide association mapping
dc.typeJournal Article

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Instituto Internacional de Investigaciones Pecuarias (ILRI)