Assessing stress tolerance of SUBI and DRO1 introgression lines under flooding and drought conditions at different growth stages

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cg.authorship.typesCGIAR and developing country instituteen
cg.authorship.typesCGIAR and advanced research instituteen
cg.contributor.affiliationKagoshima Universityen
cg.contributor.affiliationSierra Leone Agricultural Research Instituteen
cg.contributor.affiliationMinistry of Agriculture and Food Security, Jubaen
cg.contributor.affiliationTokyo University of Agriculture and Technologyen
cg.contributor.affiliationInternational Rice Research Instituteen
cg.creator.identifierEmmanuel Odama: 0000-0001-6284-0476en
cg.creator.identifierTaiichiro Ookawa: 0000-0002-6326-173Xen
cg.creator.identifierAbdelbagi Ismail: 0000-0002-1961-3072en
cg.creator.identifierJun-Ichi Sakagami: 0000-0002-0491-5449en
cg.howPublishedFormally Publisheden
cg.identifier.doihttps://doi.org/10.32604/phyton.2025.060016en
cg.identifier.urlhttps://www.techscience.com/phyton/v94n2/59815en
cg.isijournalISI Journalen
cg.issn1851-5657en
cg.issue2en
cg.journalPhyton-International Journal of Experimental Botanyen
cg.reviewStatusPeer Reviewen
cg.volumeVolume 94en
dc.contributor.authorSoe, Ibrahimen
dc.contributor.authorOdama, Emmanuelen
dc.contributor.authorTamu, Alexen
dc.contributor.authorWani, Aquilino Lado Leggeen
dc.contributor.authorOokawa, Taiichiroen
dc.contributor.authorIsmail, Abdelbagi M.en
dc.contributor.authorSakagami, Jun-Ichien
dc.date.accessioned2025-04-30T06:48:32Zen
dc.date.available2025-04-30T06:48:32Zen
dc.identifier.urihttps://hdl.handle.net/10568/174393
dc.titleAssessing stress tolerance of SUBI and DRO1 introgression lines under flooding and drought conditions at different growth stagesen
dcterms.abstractRice varieties tolerant to submergence regulate shoot elongation during short-term submergence by expressing the SUB1A gene. In contrast, the deep-rooted DRO1 is effectively expressed under drought conditions to enhance water and nutrient uptake. This study investigates the growth and yield of rice with both SUB1A and DRO1 in the background of IR64, under early-season flooding, and mid-season drought. The study used a randomized complete design with two factors: soil moisture treatments (submergence, drought, and their combination) and genotypes. The genotypes included IR64, and three near-isogenic lines (NILs): NIL-SUB1DRO1, NIL-SUB1, and NIL-DRO1. Complete submergence was imposed for 7 days on 14-day-old seedlings, while drought was imposed on control and submerged plants following a 21-day recovery period from submergence, using 42-day-old plants. Variables were measured before and after treatments (submergence and drought), and at harvest or grain maturity. The stresses negatively affected the genotypes. At harvest, IR64 and NIL-SUB1DRO1 under both stresses showed a significant reduction in tiller numbers, shoot dry weights, and yields compared to their control plants. IR64 exhibited a significant delay in reaching flowering under all stresses. The rice introgression lines showed significant improvements in tolerance to the stresses. The study showed no negative consequences of combining drought and submergence tolerance in rice.en
dcterms.accessRightsOpen Access
dcterms.audienceAcademicsen
dcterms.audienceCGIARen
dcterms.audienceDevelopment Practitionersen
dcterms.audienceFarmersen
dcterms.audiencePolicy Makersen
dcterms.audienceScientistsen
dcterms.bibliographicCitationSoe, Ibrahim, Emmanuel Odama, Alex Tamu, Aquilino Lado Legge Wani, Taiichiro Ookawa, Abdelbagi M. Ismail, and Jun-Ichi Sakagami. "Assessing Stress Tolerance of SUBI and DRO1 Introgression lines Under Flooding and Drought Conditions at Different Growth Stages." Phyton-International Journal of Experimental Botany Vol. 94, No. 2; p. 303-316en
dcterms.extentp. 303-316en
dcterms.issued2025-03-06en
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherTech Science Pressen
dcterms.subjectcrop yielden
dcterms.subjectgenotypesen
dcterms.subjectgene expressionen
dcterms.subjectdroughten
dcterms.subjectfloodingen
dcterms.subjectdry matteren
dcterms.subjectcrop improvementen
dcterms.subjectclimate change adaptationen
dcterms.typeJournal Article

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