Early cold stress responses in post-meiotic anthers from tolerant and sensitive rice cultivars

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dc.citation.titleRice
dc.citation.volume12
dc.contributor.orcidhttp://orcid.org/0000-0003-1155-2575
dc.creatorGonzález Schain, Nahuel
dc.creatorRoig-Villanova, Irma
dc.creatorKater, Martin M.
dc.date.accessioned2024-09-09T15:07:53Z
dc.date.available2024-09-09T15:07:53Z
dc.date.issued2019-12-18
dc.description.abstractBackground: Rice grain production is susceptible to a changing environment that imposes both biotic and abiotic stress conditions. Cold episodes are becoming more frequent in the last years and directly affect rice yield in areas with a temperate climate. Rice is particularly susceptible to cold stress during the reproductive phase, especially in anthers during post-meiotic stages which, in turn, affect pollen production. However, a number of rice cultivars with a certain degree of tolerance to cold have been described, which may represent a good breeding resource for improvement of susceptible commercial varieties. Plants experiencing cold stress activate a molecular response in order to reprogram many metabolic pathways to face these hostile conditions. Results: Here we performed RNA-seq analysis using cold-stressed post-meiotic anther samples from a cold-tolerant, Erythroceros Hokkaido (ERY), and a cold-susceptible commercial cultivar Sant’Andrea (S.AND). Both cultivars displayed an early common molecular response to cold, although the changes in expression levels are much more drastic in the tolerant one. Comparing our datasets, obtained after one-night cold stress, with other similar genome-wide studies showed very few common deregulated genes, suggesting that molecular responses in coldstressed anthers strongly depend on conditions and the duration of the cold treatments. Cold-tolerant ERY exhibits specific molecular responses related to ethylene metabolism, which appears to be activated after cold stress. On the other hand, S.AND cold-treated plants showed a general downregulation of photosystem I and II genes, supporting a role of photosynthesis and chloroplasts in cold responses in anthers, which has remained elusive. Conclusions: Our study revealed that a number of ethylene-related transcription factors, as putative master regulators of cold responses, were upregulated in ERY providing promising candidates to confer tolerance to susceptible cultivars. Our results also suggest that the photosynthesis machinery might be a good target to improve cold tolerance in anthers. In summary, our study provides valuable candidates for further analysis and molecular breeding for cold-tolerant rice cultivars.
dc.description.filFil: González Schain, Nahuel. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario (IBR-CONICET); Argentina.
dc.description.filFil: Roig-Villanova, Irma. Università degli Studi di Milano. Department of Biosciences; Italy.
dc.description.filFil: Kater, Martin M. Fil: Roig-Villanova, Irma. Università degli Studi di Milano. Department of Biosciences; Italy.
dc.description.sponsorshipMinistero dell’Istruzione, dell’Università e della Ricerca: FIRB RBFR08UG7
dc.description.sponsorshipAgroalimentare e ricerca (AGER- RISINNOVA)
dc.format.extent1-12
dc.identifier.issn1939-8433
dc.identifier.urihttps://hdl.handle.net/2133/27745
dc.language.isoen
dc.publisherSpringerOpen
dc.relation.publisherversionhttps://thericejournal.springeropen.com/articles/10.1186/s12284-019-0350-6
dc.relation.publisherversionhttps://doi.org/10.1186/s12284-019-0350-6
dc.rightsopenAccess
dc.rights.holderGonzález Schain, Nahuel
dc.rights.holderIrma Roig-Villanova, Irma
dc.rights.holderKater, Martin M.
dc.rights.holderUniversidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas
dc.rights.textAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectCold-stress
dc.subjectERF
dc.subjectMicrosporogenesis
dc.subjectPhotosynthesis
dc.subjectRice
dc.subjectRNA-seq
dc.subjectSpikelet fertility
dc.titleEarly cold stress responses in post-meiotic anthers from tolerant and sensitive rice cultivars
dc.typearticulo
dc.type.collectionarticulo
dc.type.versionpublishedVersion

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