Knotted1-like genes are strongly expressed in differentiated cell types in sunflower

Autores
Tioni, Mariana Florencia; Gonzalez, Daniel Hector; Chan, Raquel Lia
Año de publicación
2003
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Knotted1-like genes constitute a family of genes whose products are transcription factors involved in several aspects of plant development. In most species, these genes are expressed primarily in meristematic cells and are switched off as leaves develop. In this paper, the expression patterns of three kn1-like genes from sunflower (Helianthus annuus L.) are described. Northern blot experiments indicated that these genes are expressed at different levels in several organs of the plant, including flowers, leaves, stems, roots, and embryos. Notably, one of these genes, named HAKN1, was also highly expressed in leaves and roots. Using in situ hybridization, expression was detected in parenchymatic cells from leaf veins, petiole and lamina, and also in stem and root. Enhanced expression in phloem was also evident in both leaves and stem. Another, HAKN2, showed preferential expression instem, specifically in fascicular and interfascicular cambium and phloem. In flowers, both genes are expressed throughout inflorescence and floral meristems and in developing organ primordia. Strong expression of HAKN1 in developing involucral bracts was also observed. The results show the existence of some differencies in expression patterns of kn1-like genes in sunflower with respect to other plants. It is proposed that cell- and species-specific factors are involved in determining the developmental responses of plant cells to the expression of kn1-like genes.
Fil: Tioni, Mariana Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Agrobiotecnología del Litoral. Universidad Nacional del Litoral. Instituto de Agrobiotecnología del Litoral; Argentina
Fil: Gonzalez, Daniel Hector. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Agrobiotecnología del Litoral. Universidad Nacional del Litoral. Instituto de Agrobiotecnología del Litoral; Argentina
Fil: Chan, Raquel Lia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Agrobiotecnología del Litoral. Universidad Nacional del Litoral. Instituto de Agrobiotecnología del Litoral; Argentina
Materia
COMPOSITAE
GENE REGULATION
HOMEOBOX
KNOTTED1
PLANT ARCHITECTURE
SUNFLOWER
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/85690
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/85690
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Knotted1-like genes are strongly expressed in differentiated cell types in sunflowerTioni, Mariana FlorenciaGonzalez, Daniel HectorChan, Raquel LiaCOMPOSITAEGENE REGULATIONHOMEOBOXKNOTTED1PLANT ARCHITECTURESUNFLOWERhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Knotted1-like genes constitute a family of genes whose products are transcription factors involved in several aspects of plant development. In most species, these genes are expressed primarily in meristematic cells and are switched off as leaves develop. In this paper, the expression patterns of three kn1-like genes from sunflower (Helianthus annuus L.) are described. Northern blot experiments indicated that these genes are expressed at different levels in several organs of the plant, including flowers, leaves, stems, roots, and embryos. Notably, one of these genes, named HAKN1, was also highly expressed in leaves and roots. Using in situ hybridization, expression was detected in parenchymatic cells from leaf veins, petiole and lamina, and also in stem and root. Enhanced expression in phloem was also evident in both leaves and stem. Another, HAKN2, showed preferential expression instem, specifically in fascicular and interfascicular cambium and phloem. In flowers, both genes are expressed throughout inflorescence and floral meristems and in developing organ primordia. Strong expression of HAKN1 in developing involucral bracts was also observed. The results show the existence of some differencies in expression patterns of kn1-like genes in sunflower with respect to other plants. It is proposed that cell- and species-specific factors are involved in determining the developmental responses of plant cells to the expression of kn1-like genes.Fil: Tioni, Mariana Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Agrobiotecnología del Litoral. Universidad Nacional del Litoral. Instituto de Agrobiotecnología del Litoral; ArgentinaFil: Gonzalez, Daniel Hector. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Agrobiotecnología del Litoral. Universidad Nacional del Litoral. Instituto de Agrobiotecnología del Litoral; ArgentinaFil: Chan, Raquel Lia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Agrobiotecnología del Litoral. Universidad Nacional del Litoral. Instituto de Agrobiotecnología del Litoral; ArgentinaOxford University Press2003-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/85690Tioni, Mariana Florencia; Gonzalez, Daniel Hector; Chan, Raquel Lia; Knotted1-like genes are strongly expressed in differentiated cell types in sunflower; Oxford University Press; Journal of Experimental Botany; 54; 383; 2-2003; 681-6900022-0957CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://jxb.oxfordjournals.org/content/54/383/681.longinfo:eu-repo/semantics/altIdentifier/doi/10.1093/jxb/erg077info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:07:44Zoai:ri.conicet.gov.ar:11336/85690instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:07:44.546CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Knotted1-like genes are strongly expressed in differentiated cell types in sunflower
title Knotted1-like genes are strongly expressed in differentiated cell types in sunflower
spellingShingle Knotted1-like genes are strongly expressed in differentiated cell types in sunflower
Tioni, Mariana Florencia
COMPOSITAE
GENE REGULATION
HOMEOBOX
KNOTTED1
PLANT ARCHITECTURE
SUNFLOWER
title_short Knotted1-like genes are strongly expressed in differentiated cell types in sunflower
title_full Knotted1-like genes are strongly expressed in differentiated cell types in sunflower
title_fullStr Knotted1-like genes are strongly expressed in differentiated cell types in sunflower
title_full_unstemmed Knotted1-like genes are strongly expressed in differentiated cell types in sunflower
title_sort Knotted1-like genes are strongly expressed in differentiated cell types in sunflower
dc.creator.none.fl_str_mv Tioni, Mariana Florencia
Gonzalez, Daniel Hector
Chan, Raquel Lia
author Tioni, Mariana Florencia
author_facet Tioni, Mariana Florencia
Gonzalez, Daniel Hector
Chan, Raquel Lia
author_role author
author2 Gonzalez, Daniel Hector
Chan, Raquel Lia
author2_role author
author
dc.subject.none.fl_str_mv COMPOSITAE
GENE REGULATION
HOMEOBOX
KNOTTED1
PLANT ARCHITECTURE
SUNFLOWER
topic COMPOSITAE
GENE REGULATION
HOMEOBOX
KNOTTED1
PLANT ARCHITECTURE
SUNFLOWER
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Knotted1-like genes constitute a family of genes whose products are transcription factors involved in several aspects of plant development. In most species, these genes are expressed primarily in meristematic cells and are switched off as leaves develop. In this paper, the expression patterns of three kn1-like genes from sunflower (Helianthus annuus L.) are described. Northern blot experiments indicated that these genes are expressed at different levels in several organs of the plant, including flowers, leaves, stems, roots, and embryos. Notably, one of these genes, named HAKN1, was also highly expressed in leaves and roots. Using in situ hybridization, expression was detected in parenchymatic cells from leaf veins, petiole and lamina, and also in stem and root. Enhanced expression in phloem was also evident in both leaves and stem. Another, HAKN2, showed preferential expression instem, specifically in fascicular and interfascicular cambium and phloem. In flowers, both genes are expressed throughout inflorescence and floral meristems and in developing organ primordia. Strong expression of HAKN1 in developing involucral bracts was also observed. The results show the existence of some differencies in expression patterns of kn1-like genes in sunflower with respect to other plants. It is proposed that cell- and species-specific factors are involved in determining the developmental responses of plant cells to the expression of kn1-like genes.
Fil: Tioni, Mariana Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Agrobiotecnología del Litoral. Universidad Nacional del Litoral. Instituto de Agrobiotecnología del Litoral; Argentina
Fil: Gonzalez, Daniel Hector. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Agrobiotecnología del Litoral. Universidad Nacional del Litoral. Instituto de Agrobiotecnología del Litoral; Argentina
Fil: Chan, Raquel Lia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Agrobiotecnología del Litoral. Universidad Nacional del Litoral. Instituto de Agrobiotecnología del Litoral; Argentina
description Knotted1-like genes constitute a family of genes whose products are transcription factors involved in several aspects of plant development. In most species, these genes are expressed primarily in meristematic cells and are switched off as leaves develop. In this paper, the expression patterns of three kn1-like genes from sunflower (Helianthus annuus L.) are described. Northern blot experiments indicated that these genes are expressed at different levels in several organs of the plant, including flowers, leaves, stems, roots, and embryos. Notably, one of these genes, named HAKN1, was also highly expressed in leaves and roots. Using in situ hybridization, expression was detected in parenchymatic cells from leaf veins, petiole and lamina, and also in stem and root. Enhanced expression in phloem was also evident in both leaves and stem. Another, HAKN2, showed preferential expression instem, specifically in fascicular and interfascicular cambium and phloem. In flowers, both genes are expressed throughout inflorescence and floral meristems and in developing organ primordia. Strong expression of HAKN1 in developing involucral bracts was also observed. The results show the existence of some differencies in expression patterns of kn1-like genes in sunflower with respect to other plants. It is proposed that cell- and species-specific factors are involved in determining the developmental responses of plant cells to the expression of kn1-like genes.
publishDate 2003
dc.date.none.fl_str_mv 2003-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/85690
Tioni, Mariana Florencia; Gonzalez, Daniel Hector; Chan, Raquel Lia; Knotted1-like genes are strongly expressed in differentiated cell types in sunflower; Oxford University Press; Journal of Experimental Botany; 54; 383; 2-2003; 681-690
0022-0957
CONICET Digital
CONICET
url http://hdl.handle.net/11336/85690
identifier_str_mv Tioni, Mariana Florencia; Gonzalez, Daniel Hector; Chan, Raquel Lia; Knotted1-like genes are strongly expressed in differentiated cell types in sunflower; Oxford University Press; Journal of Experimental Botany; 54; 383; 2-2003; 681-690
0022-0957
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://jxb.oxfordjournals.org/content/54/383/681.long
info:eu-repo/semantics/altIdentifier/doi/10.1093/jxb/erg077
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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