Pantanal flood pulse reveals constitutive and plastic features of two wild rice species (Poaceae, Oryzoideae): implications for taxonomy, systematics, and phylogenetics

dc.contributor.authorLeandro, Thales D. [UNESP]
dc.contributor.authorManvailer, Vinicius
dc.contributor.authorde Oliveira Arruda, Rosani do Carmo
dc.contributor.authorScremin-Dias, Edna
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidade Federal de Mato Grosso do Sul (UFMS)
dc.contributor.institutionUniversity of Alberta
dc.date.accessioned2023-07-29T12:29:52Z
dc.date.available2023-07-29T12:29:52Z
dc.date.issued2022-12-01
dc.description.abstractAnnually, the Pantanal flood pulse induces the development of several plant structural responses, such as aerenchyma formation and differential lignification rates. Although such responses represent advantages for plants to thrive in flooded and non-flooded environments, the degree of variation often imposes limitations in identifying and establishing evolutionary relationships between allied species. Understanding the limits of plant plasticity is even more challenging for the Pantanal rice species, as they remain attached to a substrate during seasonal floods (emergent and/or epiphytic plants). The present study comparatively investigated the morphology and anatomy of the wild rice species Oryza rufipogon Griff. and O. latifolia Desv. throughout the Pantanal flood pulse to reveal their constitutive and plastic features. For this purpose, we studied qualitatively and quantitatively the leaf blades, culms, and roots of both rice species regarding environment and habit. While our results show a tremendous structural overlap between O. rufipogon and O. latifolia, leaf blade micromorphological and anatomical features are the most informative to recognize and classify the studied species. In contrast, the anatomical congruence of culms and roots is shared with many other grasses, thus lacking systematic significance. Culm and root length, aerenchyma formation and distribution, and lignification rates appear environment dependent. Indeed, the environment explains over 70% of the structural variation found in the present study. A set of life-form-specific structural features makes the epiphytic O. rufipogon readily distinguishable among emergent conspecifics and O. latifolia. We discussed implications for the taxonomy, systematics, and phylogenetics of Oryza, Oryzeae, Oryzoideae based on our results and literature reviews.en
dc.description.affiliationDepartamento de Biodiversidade Instituto de Biociências Universidade Estadual Paulista – UNESP, SP
dc.description.affiliationLaboratório de Botânica Programa de Pós-Graduação em Biologia Vegetal Instituto de Biociências Universidade Federal de Mato Grosso do Sul, MS
dc.description.affiliationDepartment of Renewable Resources Faculty of Agriculture Life and Environmental Sciences University of Alberta
dc.description.affiliationUnespDepartamento de Biodiversidade Instituto de Biociências Universidade Estadual Paulista – UNESP, SP
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipIdCNPq: 308793/2013-7
dc.description.sponsorshipIdCNPq: 311267/2012-2
dc.description.sponsorshipIdCAPES: Edital 17/2009 – PNADB
dc.format.extent1261-1278
dc.identifierhttp://dx.doi.org/10.1007/s40415-022-00835-y
dc.identifier.citationRevista Brasileira de Botanica, v. 45, n. 4, p. 1261-1278, 2022.
dc.identifier.doi10.1007/s40415-022-00835-y
dc.identifier.issn1806-9959
dc.identifier.issn0100-8404
dc.identifier.scopus2-s2.0-85139388065
dc.identifier.urihttp://hdl.handle.net/11449/246032
dc.language.isoeng
dc.relation.ispartofRevista Brasileira de Botanica
dc.sourceScopus
dc.subjectAnatomy
dc.subjectCulm
dc.subjectLeaf
dc.subjectMorphology
dc.subjectOryza
dc.subjectRoot
dc.titlePantanal flood pulse reveals constitutive and plastic features of two wild rice species (Poaceae, Oryzoideae): implications for taxonomy, systematics, and phylogeneticsen
dc.typeArtigo
unesp.author.orcid0000-0002-5800-5432[1]
unesp.author.orcid0000-0001-6529-4474[2]
unesp.author.orcid0000-0002-5662-0191[3]
unesp.author.orcid0000-0003-4218-1404[4]

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