Physiological and genetic control of transpiration efficiency in African rice, Oryza glaberrima Steud

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cg.authorship.typesCGIAR and advanced research instituteen
cg.contributor.affiliationCentre de Coopération Internationale en Recherche Agronomique Pour le Développementen
cg.contributor.affiliationUniversité de Montpellieren
cg.contributor.affiliationConsejo Superior de Investigaciones Científicas, Spainen
cg.contributor.affiliationUniversité Cheikh Anta Diop de Dakaren
cg.contributor.affiliationAfrica Rice Centeren
cg.coverage.regionAfrica
cg.creator.identifierBaboucarr Manneh: 0000-0003-4596-9678
cg.howPublishedFormally Publisheden
cg.identifier.doihttps://doi.org/10.1093/jxb/erac156en
cg.isijournalISI Journalen
cg.issn1460-2431en
cg.issue15en
cg.journalJournal of Experimental Botanyen
cg.reviewStatusPeer Reviewen
cg.volume73en
dc.contributor.authorAffortit, P.en
dc.contributor.authorEffa-Effa, B.en
dc.contributor.authorNdoye, M.S.en
dc.contributor.authorMoukouanga, D.en
dc.contributor.authorLuchaire, N.en
dc.contributor.authorCabrera-Bosquet, L.en
dc.contributor.authorPerálvarez, M.en
dc.contributor.authorPilloni, R.en
dc.contributor.authorWelcker, C.en
dc.contributor.authorChampion, A.en
dc.contributor.authorGantet, P.en
dc.contributor.authorDiedhiou, A.G.en
dc.contributor.authorManneh, B.en
dc.contributor.authorAroca, R.en
dc.contributor.authorVadez, Vincenten
dc.contributor.authorLaplaze, L.en
dc.contributor.authorCubry, Philippeen
dc.contributor.authorGrondin, A.en
dc.date.accessioned2022-12-21T08:19:35Zen
dc.date.available2022-12-21T08:19:35Zen
dc.identifier.urihttps://hdl.handle.net/10568/126149
dc.titlePhysiological and genetic control of transpiration efficiency in African rice, Oryza glaberrima Steuden
dcterms.abstractImproving crop water use efficiency, the amount of carbon assimilated as biomass per unit of water used by a plant, is of major importance as water for agriculture becomes scarcer. In rice, the genetic bases of transpiration efficiency, the derivation of water use efficiency at the whole-plant scale, and its putative component trait transpiration restriction under high evaporative demand remain unknown. These traits were measured in 2019 in a panel of 147 African rice (Oryza glaberrima) genotypes known to be potential sources of tolerance genes to biotic and abiotic stresses. Our results reveal that higher transpiration efficiency is associated with transpiration restriction in African rice. Detailed measurements in a subset of highly contrasted genotypes in terms of biomass accumulation and transpiration confirmed these associations and suggested that root to shoot ratio played an important role in transpiration restriction. Genome wide association studies identified marker-trait associations for transpiration response to evaporative demand, transpiration efficiency, and its residuals, with links to genes involved in water transport and cell wall patterning. Our data suggest that root–shoot partitioning is an important component of transpiration restriction that has a positive effect on transpiration efficiency in African rice. Both traits are heritable and define targets for breeding rice with improved water use strategiesen
dcterms.accessRightsLimited Access
dcterms.audienceScientistsen
dcterms.available2022-04-16
dcterms.bibliographicCitationAffortit, P., Effa-Effa, B., Ndoye, M.S., Moukouanga, D., Luchaire, N., Cabrera-Bosquet, L., Perálvarez, M., Pilloni, R., Welcker, C., Champion, A., Gantet, P., Diedhiou, A.G., Manneh, B., Aroca, R., Vadez, V., Laplaze, L., Cubry, P. and Grondin, A. 2022. Physiological and genetic control of transpiration efficiency in African rice, Oryza glaberrima Steud. Journal of Experimental Botany 73(15):5279–5293.en
dcterms.extent5279-5293en
dcterms.issued2022-09-03
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.publisherOxford University Pressen
dcterms.subjectrootsen
dcterms.subjectriceen
dcterms.subjecttranspirationen
dcterms.typeJournal Article

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