Boron toxicity tolerance in barley arising from efflux transporter amplification

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dc.contributor.authorSutton, T.
dc.contributor.authorBaumann, U.
dc.contributor.authorHayes, J.
dc.contributor.authorCollins, N.
dc.contributor.authorShi, B.
dc.contributor.authorSchnurbusch, T.
dc.contributor.authorHay, A.
dc.contributor.authorMayo, G.
dc.contributor.authorPallotta, M.
dc.contributor.authorTester, M.
dc.contributor.authorLangridge, P.
dc.contributor.organisationAustralian Centre for Plant Functional Genomics (ACPFG)
dc.date.issued2007
dc.description.abstractBoth limiting and toxic soil concentrations of the essential micronutrient boron represent major limitations to crop production worldwide. We identified Bot1, a BOR1 ortholog, as the gene responsible for the superior boron-toxicity tolerance of the Algerian barley landrace Sahara 3771 (Sahara). Bot1 was located at the tolerance locus by high-resolution mapping. Compared to intolerant genotypes, Sahara contains about four times as many Bot1 gene copies, produces substantially more Bot1 transcript, and encodes a Bot1 protein with a higher capacity to provide tolerance in yeast. Bot1 transcript levels identified in barley tissues are consistent with a role in limiting the net entry of boron into the root and in the disposal of boron from leaves via hydathode guttation.
dc.description.statementofresponsibilityTim Sutton, Ute Baumann, Julie Hayes, Nicholas C. Collins, Bu-Jun Shi, Thorsten Schnurbusch, Alison Hay, Gwenda Mayo, Margaret Pallotta, Mark Tester and Peter Langridge
dc.identifier.citationScience, 2007; 318(5855):1446-1449
dc.identifier.doi10.1126/science.1146853
dc.identifier.issn0036-8075
dc.identifier.issn1095-9203
dc.identifier.orcidBaumann, U. [0000-0003-1281-598X]
dc.identifier.orcidHayes, J. [0000-0001-8716-5024]
dc.identifier.orcidCollins, N. [0000-0002-5447-6755]
dc.identifier.orcidPallotta, M. [0000-0002-1642-5623]
dc.identifier.orcidLangridge, P. [0000-0001-9494-400X]
dc.identifier.urihttp://hdl.handle.net/2440/44090
dc.language.isoen
dc.publisherAmer Assoc Advancement Science
dc.source.urihttps://doi.org/10.1126/science.1146853
dc.subjectSaccharomyces cerevisiae
dc.subjectHordeum
dc.subjectPlant Roots
dc.subjectBoron Compounds
dc.subjectBoron
dc.subjectMembrane Transport Proteins
dc.subjectPlant Lectins
dc.subjectPlant Proteins
dc.subjectChromosome Mapping
dc.subjectTranscription, Genetic
dc.subjectAmino Acid Sequence
dc.subjectBase Sequence
dc.subjectBiological Transport
dc.subjectGenes, Plant
dc.subjectQuantitative Trait Loci
dc.subjectMolecular Sequence Data
dc.titleBoron toxicity tolerance in barley arising from efflux transporter amplification
dc.typeJournal article
pubs.publication-statusPublished

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