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dc.contributor.author
Bresso, Edgardo Gabriel
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dc.contributor.author
Chorostecki, Uciel Pablo
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dc.contributor.author
Rodriguez Virasoro, Ramiro Esteban
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dc.contributor.author
Palatnik, Javier Fernando
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dc.contributor.author
Schommer, Carla
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dc.date.available
2019-12-20T15:38:49Z
dc.date.issued
2018-02
dc.identifier.citation
Bresso, Edgardo Gabriel; Chorostecki, Uciel Pablo; Rodriguez Virasoro, Ramiro Esteban; Palatnik, Javier Fernando; Schommer, Carla; Spatial control of gene expression by miR319-regulated TCP transcription factors in leaf development; American Society of Plant Biologist; Plant Physiology; 176; 2; 2-2018; 1694-1708
dc.identifier.issn
0032-0889
dc.identifier.uri
http://hdl.handle.net/11336/92608
dc.description.abstract
The characteristic leaf shapes we see in all plants are in good part the outcome of the combined action of several transcription factor networks that translate into cell division activity during the early development of the organ. We show here that wild-type leaves have distinct transcriptomic profiles in center and marginal regions. Certain transcripts are enriched in margins, including those of CINCINNATA-like TCPs (TEOSINTE BRANCHED, CYCLOIDEA and PCF1/2) and members of the NGATHA and STYLISH gene families. We study in detail the contribution of microRNA319 (miR319)-regulated TCP transcription factors to the development of the center and marginal regions of Arabidopsis (Arabidopsis thaliana) leaves. We compare in molecular analyses the wild type, the tcp2 tcp4 mutant that has enlarged flat leaves, and the tcp2 tcp3 tcp4 tcp10 mutant with strongly crinkled leaves. The different leaf domains of the tcp mutants show changed expression patterns for many photosynthesisrelated genes, indicating delayed differentiation, especially in the marginal parts of the organ. At the same time, we found an up-regulation of cyclin genes and other genes that are known to participate in cell division, specifically in the marginal regions of tcp2 tcp3 tcp4 tcp10. Using GUS reporter constructs, we confirmed extended mitotic activity in the tcp2 tcp3 tcp4 tcp10 leaf, which persisted in small defined foci in the margins when the mitotic activity had already ceased in wild-type leaves. Our results describe the role of miR319-regulated TCP transcription factors in the coordination of activities in different leaf domains during organ development.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Society of Plant Biologist
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
TCP
dc.subject
hoja
dc.subject
factores de transcripcion
dc.subject
margen
dc.subject.classification
Bioquímica y Biología Molecular
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Spatial control of gene expression by miR319-regulated TCP transcription factors in leaf development
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-10-21T19:58:24Z
dc.journal.volume
176
dc.journal.number
2
dc.journal.pagination
1694-1708
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Rockville
dc.description.fil
Fil: Bresso, Edgardo G.. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Rosario, Argentina; Argentina
dc.description.fil
Fil: Chorostecki, Uciel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Rosario; Argentina
dc.description.fil
Fil: Rodriguez, Ramiro E.. Universidad Nacional de Rosario; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Palatnik, Javier Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Rosario; Argentina
dc.description.fil
Fil: Schommer, Carla. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Rosario; Argentina
dc.journal.title
Plant Physiology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1104/pp.17.00823
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.plantphysiol.org/content/176/2/1694
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