Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1039289
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dc.contributor.authorCLEMENTE, A. C. S.pt_BR
dc.contributor.authorGUIMARÃES, R. M.pt_BR
dc.contributor.authorMARTINS, D. C.pt_BR
dc.contributor.authorGOMES, L. A. A.pt_BR
dc.contributor.authorCAIXETA, F.pt_BR
dc.contributor.authorREIS, R. G. E.pt_BR
dc.contributor.authorROSA, S. D. V. F. dapt_BR
dc.date.accessioned2016-03-02T11:11:11Zpt_BR
dc.date.available2016-03-02T11:11:11Zpt_BR
dc.date.created2016-03-02pt_BR
dc.date.issued2015pt_BR
dc.identifier.citationGenetics and Molecular Research, v. 14, n. 2, p. 4703-4715, 2015.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1039289pt_BR
dc.descriptionSeed germination and dormancy are complex phenomena that are controlled by many genes and environmental factors. Such genes are indicated by phytohormones that interact with each other, and may cause dormancy or promote seed germination. The objective of this study was to investigate gene expression associated with the biosynthetic pathways of abscisic acid (ABA), gibberellic acid (GA), and ethylene (ET) in dormant and germinated lettuce seeds. The expressions of LsNCED, LsGA3ox1, and ACO-B were evaluated in germinating and dormant seeds from the cultivars Everglades, Babá de Verão, Verônica, Salinas, Colorado, and Regina 71. The expressions of LsNCED, LsGA3ox1, and ACO-B were related to the biosynthesis of ABA, GA, and ET, respectively; therefore, the presence of these substances depends on genotype. LsNCED expression only occurred in dormant seeds, and was connected to dormancy. LsGA3ox1 expression only occurred in germinated seeds, and was connected to termination. The ACO-B gene was involved in ET biosynthesis, and was expressed differently in germinated and dormant seeds, depending on the genotype, indicating different functions for different characteristics. Furthermore, sensitivity to phytohormones appeared to be more important than the expression levels of LsNCED, LsGA3ox1, or ACO-B.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.titleExpression of genes associated with the biosynthetic pathways of abscisic acid, gibberellin, and ethylene during the germination of lettuce seeds.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2016-03-04T11:11:11Zpt_BR
dc.subject.thesagroLactuca Sativapt_BR
dc.subject.nalthesaurusGenetic techniques and protocolspt_BR
dc.subject.nalthesaurusDormancypt_BR
riaa.ainfo.id1039289pt_BR
riaa.ainfo.lastupdate2016-03-04pt_BR
dc.contributor.institutionALINE DA CONSOLAÇÃO SAMPAIO CLEMENTE, UFLA; UFLA; UNIVERSIDADE FEDERAL DE SÃO JOÃO DEL REI; UFLA; FRANCIELE CAIXETA, UFLA; UEMG; STTELA DELLYZETE VEIGA F DA ROSA, SAPC.pt_BR
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