Evolutionary Pattern Of Angiosperm Bzip Factors Homologous To The Maize Opaque2 Regulatory Protein.

dc.creatorVincentz, Michel
dc.creatorBandeira-Kobarg, Claudia
dc.creatorGauer, Luciane
dc.creatorSchlögl, Paulo
dc.creatorLeite, Adilson
dc.date2003-Jan
dc.date2015-11-27T12:52:22Z
dc.date2015-11-27T12:52:22Z
dc.date.accessioned2018-03-29T00:57:52Z
dc.date.available2018-03-29T00:57:52Z
dc.identifierJournal Of Molecular Evolution. v. 56, n. 1, p. 105-16, 2003-Jan.
dc.identifier0022-2844
dc.identifier10.1007/s00239-002-2386-1
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/12569427
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/195494
dc.identifier12569427
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1295727
dc.descriptionOpaque2 (O2) is a bZIP transcriptional regulatory factor involved in the control of seed storage proteins synthesis as well as carbon and nitrogen metabolism during maize seed development. Phylogenetic analysis of a possible complete and nonredundant collection of angiosperm bZIP factors resulted in the identification of 20 angiosperm O2-homologues that defined what we call the O2 gene family. Members of the family share a highly conserved bZIP DNA binding domain and several other motifs which define important functional features. The O2 family was enriched by the identification of 25 new putative angiosperm O2 homologous genes in EST databases and in the rice genome. Based on parsimony analysis, the collection of O2 homologues was organized into one eudicot-monocot and three monocot groups of orthologous genes and two groups of eudicot genes. These results support a model of the evolution of the O2 family that involves two O2 homologous gene duplications before the separation of monocots and eudicots. Further expansion of O2 homologues resulted in at least three and one gene duplications in the monocot and eudicot lineages, respectively. O2 appears to have been the result of a monocot-specific gene duplication event, and the possibility that O2 represents a functional specialization restricted to monocots is suggested.
dc.description56
dc.description105-16
dc.languageeng
dc.relationJournal Of Molecular Evolution
dc.relationJ. Mol. Evol.
dc.rightsfechado
dc.rights
dc.sourcePubMed
dc.subjectAmino Acid Sequence
dc.subjectBasic-leucine Zipper Transcription Factors
dc.subjectBinding Sites
dc.subjectConserved Sequence
dc.subjectDna
dc.subjectDna-binding Proteins
dc.subjectEvolution, Molecular
dc.subjectG-box Binding Factors
dc.subjectGene Duplication
dc.subjectMolecular Sequence Data
dc.subjectMultigene Family
dc.subjectPhylogeny
dc.subjectPlant Proteins
dc.subjectSequence Alignment
dc.subjectTranscription Factors
dc.subjectZea Mays
dc.titleEvolutionary Pattern Of Angiosperm Bzip Factors Homologous To The Maize Opaque2 Regulatory Protein.
dc.typeArtículos de revistas


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