Comparative Transcriptomics of Lowland Rice Varieties Uncovers Novel Candidate Genes for Adaptive Iron Excess Tolerance

dc.bibliographicCitation.firstPage624
dc.bibliographicCitation.issue4
dc.bibliographicCitation.lastPage640
dc.bibliographicCitation.volume62
dc.contributor.authorKar, Saradia
dc.contributor.authorMai, Hans-Jörg
dc.contributor.authorKhalouf, Hadeel
dc.contributor.authorAbdallah, Heithem Ben
dc.contributor.authorFlachbart, Samantha
dc.contributor.authorFink-Straube, Claudia
dc.contributor.authorBräutigam, Andrea
dc.contributor.authorXiong, Guosheng
dc.contributor.authorShang, Lianguang
dc.contributor.authorPanda, Sanjib Kumar
dc.contributor.authorBauer, Petra
dc.date.accessioned2022-03-10T12:41:26Z
dc.date.available2022-03-10T12:41:26Z
dc.date.issued2021
dc.description.abstractIron (Fe) toxicity is a major challenge for plant cultivation in acidic waterlogged soil environments, where lowland rice is a major staple food crop. Only few studies have addressed the molecular characterization of excess Fe tolerance in rice, and these highlight different mechanisms for Fe tolerance. Out of 16 lowland rice varieties, we identified a pair of contrasting lines, Fe-tolerant Lachit and -susceptible Hacha. The two lines differed in their physiological and morphological responses to excess Fe, including leaf growth, leaf rolling, reactive oxygen species generation and Fe and metal contents. These responses were likely due to genetic origin as they were mirrored by differential gene expression patterns, obtained through RNA sequencing, and corresponding gene ontology term enrichment in tolerant vs. susceptible lines. Thirty-five genes of the metal homeostasis category, mainly root expressed, showed differential transcriptomic profiles suggestive of an induced tolerance mechanism. Twenty-two out of these 35 metal homeostasis genes were present in selection sweep genomic regions, in breeding signatures, and/or differentiated during rice domestication. These findings suggest that Fe excess tolerance is an important trait in the domestication of lowland rice, and the identified genes may further serve to design the targeted Fe tolerance breeding of rice crops.eng
dc.description.versionpublishedVersioneng
dc.identifier.urihttps://oa.tib.eu/renate/handle/123456789/8197
dc.identifier.urihttps://doi.org/10.34657/7235
dc.language.isoengeng
dc.publisherOxford : Oxford University Press
dc.relation.doihttps://doi.org/10.1093/pcp/pcab018
dc.relation.essn1471-9053
dc.relation.ispartofseriesPlant and Cell Physiology 62 (2021), Nr. 4
dc.rights.licenseCC BY-NC 4.0 Unported
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/
dc.subjectIron toxicityeng
dc.subjectIron uptakeeng
dc.subjectLeaf bronzingeng
dc.subjectMetal homeostasiseng
dc.subjectOryza sativaeng
dc.subjectOxidative stresseng
dc.subjectRiceeng
dc.subjectRNA sequencingeng
dc.subjectSusceptibleeng
dc.subjectToleranteng
dc.subject.ddc570
dc.subject.ddc580
dc.titleComparative Transcriptomics of Lowland Rice Varieties Uncovers Novel Candidate Genes for Adaptive Iron Excess Toleranceeng
dc.typearticleeng]
dc.typeTexteng]
dcterms.bibliographicCitation.journalTitlePlant and Cell Physiology
local.doifilter.overrideja
tib.accessRightsopenAccesseng
wgl.contributorINMger
wgl.subjectBiowissenschaften/Biologieger
wgl.typeZeitschriftenartikelger
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