Evidence of ecotypic differentiation between populations of the tree species Parapiptadenia rigida due to flooding

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dc.contributor.authorSilva, D. C. G.
dc.contributor.authorCarvalho, M. C. C. G. [UNESP]
dc.contributor.authorRuas, P. M.
dc.contributor.authorRuas, C. F.
dc.contributor.authorMedri, M. E.
dc.contributor.institutionUniv Estadual Norte Parana
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Estadual de Londrina (UEL)
dc.date.accessioned2014-05-20T13:22:19Z
dc.date.available2014-05-20T13:22:19Z
dc.date.issued2010-01-01
dc.description.abstractThe tree species Parapiptadenia rigida, native to southern South America, is frequently used in reforestation of riverbanks in Brazil. This tree is also a source of gums, tannins and essential oils, and it has some medicinal uses. We investigated flooding tolerance and genetic diversity in two populations of P. rigida; one of them was naturally exposed to flooding. Plants derived from seeds collected from each population were submitted to variable periods of experimental waterlogging and submergence. Waterlogging promoted a decrease in biomass and structural adjustments, such as superficial roots with aerenchyma and hypertrophied lenticels, that contribute to increase atmospheric oxygen intake. Plants that were submerged had an even greater reduction in biomass and a high mortality rate (40%). The two populations varied significantly in their RAPD marker profiles, in their ability to produce aerenchyma when waterlogged and to survive when submerged, suggesting ecotypic differentiation between them. Hence, the seasonal flooding that has been challenging the tropical riparian forest appears to be genetically modifying the P. rigida populations exposed to it by selecting individuals with increased ability to live under this condition.en
dc.description.affiliationUniv Estadual Norte Parana, Dept Biol & Tecnol, Bandeirantes, PR, Brazil
dc.description.affiliationUniv Estadual Paulista, Dept Ciencias Biol, Assis, SP, Brazil
dc.description.affiliationUniversidade Estadual de Londrina (UEL), Dept Biol Geral, Londrina, PR, Brazil
dc.description.affiliationUniversidade Estadual de Londrina (UEL), Dept Biol Anim & Vegetal, Londrina, PR, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Ciencias Biol, Assis, SP, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.format.extent797-810
dc.identifierhttp://dx.doi.org/10.4238/vol9-2gmr736
dc.identifier.citationGenetics and Molecular Research. Ribeirao Preto: Funpec-editora, v. 9, n. 2, p. 797-810, 2010.
dc.identifier.doi10.4238/vol9-2gmr736
dc.identifier.fileWOS000280396600018.pdf
dc.identifier.issn1676-5680
dc.identifier.urihttp://hdl.handle.net/11449/6531
dc.identifier.wosWOS:000280396600018
dc.language.isoeng
dc.publisherFunpec-editora
dc.relation.ispartofGenetics and Molecular Research
dc.relation.ispartofsjr0,439
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectWaterloggingen
dc.subjectSubmergenceen
dc.subjectParapiptadenia rigidaen
dc.subjectGenetic diversityen
dc.subjectRAPDen
dc.subjectLocal adaptationen
dc.titleEvidence of ecotypic differentiation between populations of the tree species Parapiptadenia rigida due to floodingen
dc.typeArtigo
dcterms.licensehttp://www.geneticsmr.com/node/2
dcterms.rightsHolderFunpec-editora
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências e Letras, Assispt
unesp.departmentCiências Biológicas - FCLASpt

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