Accounting for the impact of genotype and environment on variation in leaf respiration of wheat in Mexico and Australia

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cg.contributor.affiliationThe Australian National University
cg.contributor.affiliationUniversity of Lincoln
cg.contributor.affiliationAustralian National University
cg.contributor.affiliationUniversity of Adelaide
cg.contributor.affiliationInternational Maize and Wheat Improvement Center
cg.contributor.affiliationKWS Momont Recherche
cg.contributor.affiliationUniversity of Wollongong
cg.contributor.affiliationThe University of Western Australia
cg.contributor.affiliationUniversity of Canterbury
cg.contributor.donorUS Foundation for Food and Agriculture Research
cg.contributor.donorInternational Wheat Yield Partnership
cg.contributor.donorAustralian Research Council
cg.contributor.programAcceleratorBreeding for Tomorrow
cg.coverage.countryMexico
cg.coverage.countryAustralia
cg.coverage.iso3166-alpha2MX
cg.coverage.iso3166-alpha2AU
cg.coverage.regionLatin America
cg.coverage.regionOceania
cg.creator.identifierOorbessy Gaju: 0000-0003-0493-7354
cg.creator.identifierAndrew Bowerman: 0000-0003-1729-7843
cg.creator.identifierDarren Cullerne: 0000-0001-9784-0492
cg.creator.identifierBradley Posch: 0000-0003-0924-6608
cg.creator.identifierCallum Bryant: 0000-0002-8035-9157
cg.creator.identifierYuzhen Fan: 0000-0003-1857-9244
cg.creator.identifierMatthew Spence: 0000-0003-2284-2498
cg.creator.identifierMatthew Gilliham: 0000-0003-0666-3078
cg.creator.identifierRobert Furbank: 0000-0001-8700-6613
cg.creator.identifierGemma Molero: 0000-0002-6431-7563
cg.creator.identifierBarry Pogson: 0000-0003-1869-2423
cg.creator.identifierKy Mathews: 0000-0003-3664-1320
cg.creator.identifierA. Harvey Millar: 0000-0001-9679-1473
cg.creator.identifierAllison Pearson: 0000-0001-8231-0149
cg.creator.identifierMatthew Paul Reynolds: 0000-0002-4291-4316
cg.creator.identifierNicolas Taylor: 0000-0003-2004-5217
cg.creator.identifierMatthew Turnbull: 0000-0002-3433-5859
cg.creator.identifierOwen Atkin: 0000-0003-1041-5202
cg.howPublishedFormally Published
cg.identifier.dataurlhttps://datacommons.anu.edu.au/DataCommons/
cg.identifier.doihttps://doi.org/10.1093/jxb/erae449
cg.isijournalISI Journal
cg.issn0022-0957
cg.issue4
cg.journalJournal of Experimental Botany
cg.reviewStatusPeer Review
cg.volume76
dc.contributor.authorGaju, Oorbessy
dc.contributor.authorBloomfield, Keith J.
dc.contributor.authorNegrini, Anna C.A.
dc.contributor.authorBowerman, Andrew
dc.contributor.authorCullerne, Darren
dc.contributor.authorPosch, Bradley Cooper
dc.contributor.authorBryant, Callum J.
dc.contributor.authorFan, Yuzhen
dc.contributor.authorSpence, Matthew A.
dc.contributor.authorStone, Bethany
dc.contributor.authorGilliham, Matthew
dc.contributor.authorFurbank, Robert
dc.contributor.authorMolero, Gemma
dc.contributor.authorPogson, Barry
dc.contributor.authorMathews, Ky
dc.contributor.authorMillar, Alan Harvey
dc.contributor.authorPearson, Allison
dc.contributor.authorReynolds, Matthew Paul
dc.contributor.authorStroeher, Elke
dc.contributor.authorTaylor, Nicolas
dc.contributor.authorTurnbull, Matthew Hamish
dc.contributor.authorAtkin, Owen K.
dc.date.accessioned2025-12-19T21:22:43Z
dc.date.available2025-12-19T21:22:43Z
dc.identifier.urihttps://hdl.handle.net/10568/179089
dc.titleAccounting for the impact of genotype and environment on variation in leaf respiration of wheat in Mexico and Australia
dcterms.abstractAn approach to improving radiation use efficiency (RUE) in wheat is to screen for variability in rates of leaf respiration in darkness (R dark). We used a high-throughput system to quantify variation in R dark among a diverse range of spring wheat genotypes (301 lines) grown in two countries (Mexico and Australia) and two seasons (2017 and 2018), and in doing so quantify the relative importance of genotype (G) and environment (E) in influencing variations in leaf R dark. Through careful design, residual (unexplained) variation represented <10% of the total observed. Up to a third of the variation in R dark (and related traits) was under genetic control. This suggests opportunities for breeders to use R dark as a novel selection tool. In addition, E accounted for more than half of the total variation in area-based rates of R dark. Here, the day of measurement was crucial, suggesting that day-to-day variations in the environment influence rates of R dark measured at a common temperature. Overall, this study provides new insights into the role G and E play in determining variation in rates of leaf R dark of one of the most important cereal crops, with implications for future improvements in carbon use efficiency and yield.en
dcterms.accessRightsOpen Access
dcterms.available2025-02-25
dcterms.bibliographicCitationGaju, O., Bloomfield, K. J., Negrini, A. C. A., Bowerman, A. F., Cullerne, D., Posch, B. C., Bryant, C., Fan, Y., Spence, M., Stone, B., Gilliham, M., Furbank, R. T., Molero, G., Pogson, B. J., Mathews, K., Millar, A. H., Pearson, A. L., Reynolds, M. P., Stroeher, E., . . . Atkin, O. K. (2025). Accounting for the impact of genotype and environment on variation in leaf respiration of wheat in Mexico and Australia. Journal of Experimental Botany, 76(4), 1099–1115. https://doi.org/10.1093/jxb/erae449
dcterms.hasVersionhttps://hdl.handle.net/10883/35390
dcterms.issued2025-02-25
dcterms.languageen
dcterms.licenseCC BY-NC-ND 4.0
dcterms.publisherOxford University Press
dcterms.subjectenvironment
dcterms.subjectgenotypes
dcterms.subjectrespiration
dcterms.subjectselection
dcterms.subjectwheat
dcterms.typeJournal Article

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