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dc.creatorArredondo-Peter, Raúles_ES
dc.creatorMorán Juez, José Fernandoes_ES
dc.creatorSarath, Gautames_ES
dc.date.accessioned2020-09-07T08:46:38Z
dc.date.available2020-09-07T08:46:38Z
dc.date.issued2014
dc.identifier.issn2046-1402
dc.identifier.urihttps://hdl.handle.net/2454/38050
dc.description.abstractHemoglobins (Hbs) corresponding to non-symbiotic (nsHb) and truncated (tHb) Hbs have been identified in rice (Oryza). This review discusses the major findings from the current studies on rice Hbs. At the molecular level, a family of the nshb genes, consisting of hb1, hb2, hb3, hb4 and hb5, and a single copy of the thb gene exist in Oryza sativa var. indica and O. sativa var. japonica, Hb transcripts coexist in rice organs and Hb polypeptides exist in rice embryonic and vegetative organs and in the cytoplasm of differentiating cells. At the structural level, the crystal structure of rice Hb1 has been elucidated, and the structures of the other rice Hbs have been modeled. Kinetic analysis indicated that rice Hb1 and 2, and possibly rice Hb3 and 4, exhibit a very high affinity for O , whereas rice Hb5 and tHb possibly exhibit a low to moderate affinity for O . Based on the accumulated information on the properties of rice Hbs and data from the analysis of other plant and non-plant Hbs, it is likely that Hbs play a variety of roles in rice organs, including O -transport, O -sensing, NO-scavenging and redox-signaling. From an evolutionary perspective, an outline for the evolution of rice Hbs is available. Rice nshb and thb genes vertically evolved through different lineages, rice nsHbs evolved into clade I and clade II lineages and rice nshbs and thbs evolved under the effect of neutral selection. This review also reveals lacunae in our ability to completely understand rice Hbs. Primary lacunae are the absence of experimental information about the precise functions of rice Hbs, the properties of modeled rice Hbs and the cis-elements and trans-acting factors that regulate the expression of rice hb genes, and the partial understanding of the evolution of rice Hbs.en
dc.format.extent19 p.
dc.format.mimetypeapplication/pdfen
dc.language.isoengen
dc.publisherF1000 Researchen
dc.relation.ispartofF1000Research, 2014, 3:253en
dc.rights© 2014 Arredondo-Peter R et al. This is an open access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Data associated with the article are available under the terms of the Creative Commons Zero 'No rights reserved' data waiver (CC0 1.0 Public domain dedication).en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectEvolutionen
dc.subjectFunctionen
dc.subjectGene expressionen
dc.subjectNon-symbioticen
dc.subjectStructureen
dc.subjectSymbioticen
dc.subjectTruncateden
dc.titleRice (Oryza) hemoglobins [version 2; peer review: 2 approved]en
dc.typeinfo:eu-repo/semantics/articleen
dc.typeArtículo / Artikuluaes
dc.contributor.departmentUniversidad Pública de Navarra / Nafarroako Unibertsitate Publikoa. IdAB – Instituto de Agrobiotecnología / Agrobioteknologiako Institutuaes_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessen
dc.rights.accessRightsAcceso abierto / Sarbide irekiaes
dc.identifier.doi10.12688/f1000research.5530.2
dc.relation.publisherversionhttps://doi.org/10.12688/f1000research.5530.2
dc.type.versioninfo:eu-repo/semantics/publishedVersionen
dc.type.versionVersión publicada / Argitaratu den bertsioaes


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© 2014 Arredondo-Peter R et al. This is an open access article distributed under the terms of the Creative Commons Attribution
Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Data associated
with the article are available under the terms of the Creative Commons Zero 'No rights reserved' data waiver (CC0 1.0 Public domain dedication).
Except where otherwise noted, this item's license is described as © 2014 Arredondo-Peter R et al. This is an open access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Data associated with the article are available under the terms of the Creative Commons Zero 'No rights reserved' data waiver (CC0 1.0 Public domain dedication).