QTL analysis of photosynthesis and water status traits in sunflower (Helianthus annuus L.) under greenhouse conditions

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dc.contributor.authorFleury, D.
dc.contributor.authorFabre, F.
dc.contributor.authorBerrios, E.
dc.contributor.authorChaarani, G.
dc.contributor.authorPlanchon, C.
dc.contributor.authorSarrafi, A.
dc.contributor.authorGentzbittel, L.
dc.contributor.organisationAustralian Centre for Plant Functional Genomics (ACPFG)
dc.date.issued2001
dc.description.abstractThe identification of QTL for several physiological traits in sunflower is described. Traits related to photosynthesis (leaf chlorophyll concentration, net photosynthesis and internal CO2 concentration) and water status (stomatal conductance, transpiration, predawn leaf water potential, and relative water content) were evaluated in a population of recombinant inbred lines under greenhouse conditions. Narrow-sense heritabilities were low to average. Using an AFLP linkage map, 19 QTL were detected explaining 8.8–62.9% of the phenotypic variance for each trait. Among these, two major QTL for net photosynthesis were identified on linkage group IX. One QTL co-location was found on linkage group VIII for stomatal movements and water status. Coincident locations for QTL regulating photosynthesis, transpiration and leaf water potential were described on linkage group XIV. These results lead to the first description of the organization of genomic regions related to yield in sunflower.
dc.description.statementofresponsibilityDelphine Hervé, Françoise Fabre, Ericka Flores Berrios, Nadia Leroux, Ghias Al Chaarani, Claude Planchon, Ahmad Sarrafi and Laurent Gentzbittel
dc.identifier.citationJournal of Experimental Botany, 2001; 52(362):1857-1864
dc.identifier.doi10.1093/jexbot/52.362.1857
dc.identifier.issn0022-0957
dc.identifier.issn1460-2431
dc.identifier.orcidFleury, D. [0000-0002-7077-4103]
dc.identifier.urihttp://hdl.handle.net/2440/44816
dc.language.isoen
dc.publisherOxford Univ Press
dc.source.urihttps://doi.org/10.1093/jexbot/52.362.1857
dc.subjectHelianthus annuus
dc.subjectrecombinant inbred lines
dc.subjectgas exchange
dc.subjectwater potential
dc.subjectchlorophyll content
dc.titleQTL analysis of photosynthesis and water status traits in sunflower (Helianthus annuus L.) under greenhouse conditions
dc.typeJournal article
pubs.publication-statusPublished

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