Ovule and female gametophyte in representatives of Nymphaea subgenus Hydrocallis and Victoria (Nymphaeaceae; Nymphaeoideae)

Autores
Zini, Lucia Melisa; Galati, Beatriz Gloria; Ferrucci, María Silvia
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Nymphaeaceae occupies an important phylogenetic position because of their placement as one of the basal angiosperms. From this perspective, morphological studies in the family are of great value to understanding plant phylogeny and evolution. Ovule development and female gametophyte in Nymphaea amazonum, N. gardneriana (subgenus Hydrocallis) and in Victoria cruziana were analyzed in order to provide further progress in characters of potential evolutionary interest. The ovules of all species are anatropous, bitegmic, distomic, weakly crasinucellate, and present an epistase. The female gametophyte is four-celled and corresponds to the Schisandra type, distinctive of the Nymphaeales. Comparisons among ovules of the subgenera of Nymphaea and others allied genera show differences with respect to micropyle conformation, thickness of nucellus and outer integument, and its degree of development on the raphal side. The studied species of Nymphaea share an annular outer integument and linear triad of megaspores. These results fill gaps in the current incomplete knowledge of character states especially within Nymphaea. In subgenus Hydrocallis, the ovules have an outer integument not markedly cup-shaped in contrast to subgenus Nymphaea, since the micropyle is closer to the funiculus as in Nuphar. The present observations suggest that the ovule morphology has diversified in Nymphaea and the characters studied clearly show no evidences to support the hypothesis of a monophyletic genus.
Fil: Zini, Lucia Melisa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina
Fil: Galati, Beatriz Gloria. Universidad de Buenos Aires. Facultad de Agronomia; Argentina
Fil: Ferrucci, Maria Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina
Materia
Ovule Development
Megasporogenesis
Female Gametophyte
Nymphaea
Victoria
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/7008
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/7008
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Ovule and female gametophyte in representatives of Nymphaea subgenus Hydrocallis and Victoria (Nymphaeaceae; Nymphaeoideae)Zini, Lucia MelisaGalati, Beatriz GloriaFerrucci, María SilviaOvule DevelopmentMegasporogenesisFemale GametophyteNymphaeaVictoriahttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Nymphaeaceae occupies an important phylogenetic position because of their placement as one of the basal angiosperms. From this perspective, morphological studies in the family are of great value to understanding plant phylogeny and evolution. Ovule development and female gametophyte in Nymphaea amazonum, N. gardneriana (subgenus Hydrocallis) and in Victoria cruziana were analyzed in order to provide further progress in characters of potential evolutionary interest. The ovules of all species are anatropous, bitegmic, distomic, weakly crasinucellate, and present an epistase. The female gametophyte is four-celled and corresponds to the Schisandra type, distinctive of the Nymphaeales. Comparisons among ovules of the subgenera of Nymphaea and others allied genera show differences with respect to micropyle conformation, thickness of nucellus and outer integument, and its degree of development on the raphal side. The studied species of Nymphaea share an annular outer integument and linear triad of megaspores. These results fill gaps in the current incomplete knowledge of character states especially within Nymphaea. In subgenus Hydrocallis, the ovules have an outer integument not markedly cup-shaped in contrast to subgenus Nymphaea, since the micropyle is closer to the funiculus as in Nuphar. The present observations suggest that the ovule morphology has diversified in Nymphaea and the characters studied clearly show no evidences to support the hypothesis of a monophyletic genus.Fil: Zini, Lucia Melisa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); ArgentinaFil: Galati, Beatriz Gloria. Universidad de Buenos Aires. Facultad de Agronomia; ArgentinaFil: Ferrucci, Maria Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); ArgentinaElsevier Science2015-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/7008Zini, Lucia Melisa; Galati, Beatriz Gloria; Ferrucci, María Silvia; Ovule and female gametophyte in representatives of Nymphaea subgenus Hydrocallis and Victoria (Nymphaeaceae; Nymphaeoideae); Elsevier Science; Aquatic Botany; 120; Part B; 10-2015; 322-3320304-3770enginfo:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/doi/10.1016/j.aquabot.2014.09.012info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0304377014001521info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:24:44Zoai:ri.conicet.gov.ar:11336/7008instacron: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:34982025-09-10 13:24:44.568CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Ovule and female gametophyte in representatives of Nymphaea subgenus Hydrocallis and Victoria (Nymphaeaceae; Nymphaeoideae)
title Ovule and female gametophyte in representatives of Nymphaea subgenus Hydrocallis and Victoria (Nymphaeaceae; Nymphaeoideae)
spellingShingle Ovule and female gametophyte in representatives of Nymphaea subgenus Hydrocallis and Victoria (Nymphaeaceae; Nymphaeoideae)
Zini, Lucia Melisa
Ovule Development
Megasporogenesis
Female Gametophyte
Nymphaea
Victoria
title_short Ovule and female gametophyte in representatives of Nymphaea subgenus Hydrocallis and Victoria (Nymphaeaceae; Nymphaeoideae)
title_full Ovule and female gametophyte in representatives of Nymphaea subgenus Hydrocallis and Victoria (Nymphaeaceae; Nymphaeoideae)
title_fullStr Ovule and female gametophyte in representatives of Nymphaea subgenus Hydrocallis and Victoria (Nymphaeaceae; Nymphaeoideae)
title_full_unstemmed Ovule and female gametophyte in representatives of Nymphaea subgenus Hydrocallis and Victoria (Nymphaeaceae; Nymphaeoideae)
title_sort Ovule and female gametophyte in representatives of Nymphaea subgenus Hydrocallis and Victoria (Nymphaeaceae; Nymphaeoideae)
dc.creator.none.fl_str_mv Zini, Lucia Melisa
Galati, Beatriz Gloria
Ferrucci, María Silvia
author Zini, Lucia Melisa
author_facet Zini, Lucia Melisa
Galati, Beatriz Gloria
Ferrucci, María Silvia
author_role author
author2 Galati, Beatriz Gloria
Ferrucci, María Silvia
author2_role author
author
dc.subject.none.fl_str_mv Ovule Development
Megasporogenesis
Female Gametophyte
Nymphaea
Victoria
topic Ovule Development
Megasporogenesis
Female Gametophyte
Nymphaea
Victoria
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Nymphaeaceae occupies an important phylogenetic position because of their placement as one of the basal angiosperms. From this perspective, morphological studies in the family are of great value to understanding plant phylogeny and evolution. Ovule development and female gametophyte in Nymphaea amazonum, N. gardneriana (subgenus Hydrocallis) and in Victoria cruziana were analyzed in order to provide further progress in characters of potential evolutionary interest. The ovules of all species are anatropous, bitegmic, distomic, weakly crasinucellate, and present an epistase. The female gametophyte is four-celled and corresponds to the Schisandra type, distinctive of the Nymphaeales. Comparisons among ovules of the subgenera of Nymphaea and others allied genera show differences with respect to micropyle conformation, thickness of nucellus and outer integument, and its degree of development on the raphal side. The studied species of Nymphaea share an annular outer integument and linear triad of megaspores. These results fill gaps in the current incomplete knowledge of character states especially within Nymphaea. In subgenus Hydrocallis, the ovules have an outer integument not markedly cup-shaped in contrast to subgenus Nymphaea, since the micropyle is closer to the funiculus as in Nuphar. The present observations suggest that the ovule morphology has diversified in Nymphaea and the characters studied clearly show no evidences to support the hypothesis of a monophyletic genus.
Fil: Zini, Lucia Melisa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina
Fil: Galati, Beatriz Gloria. Universidad de Buenos Aires. Facultad de Agronomia; Argentina
Fil: Ferrucci, Maria Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina
description Nymphaeaceae occupies an important phylogenetic position because of their placement as one of the basal angiosperms. From this perspective, morphological studies in the family are of great value to understanding plant phylogeny and evolution. Ovule development and female gametophyte in Nymphaea amazonum, N. gardneriana (subgenus Hydrocallis) and in Victoria cruziana were analyzed in order to provide further progress in characters of potential evolutionary interest. The ovules of all species are anatropous, bitegmic, distomic, weakly crasinucellate, and present an epistase. The female gametophyte is four-celled and corresponds to the Schisandra type, distinctive of the Nymphaeales. Comparisons among ovules of the subgenera of Nymphaea and others allied genera show differences with respect to micropyle conformation, thickness of nucellus and outer integument, and its degree of development on the raphal side. The studied species of Nymphaea share an annular outer integument and linear triad of megaspores. These results fill gaps in the current incomplete knowledge of character states especially within Nymphaea. In subgenus Hydrocallis, the ovules have an outer integument not markedly cup-shaped in contrast to subgenus Nymphaea, since the micropyle is closer to the funiculus as in Nuphar. The present observations suggest that the ovule morphology has diversified in Nymphaea and the characters studied clearly show no evidences to support the hypothesis of a monophyletic genus.
publishDate 2015
dc.date.none.fl_str_mv 2015-10
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/11336/7008
Zini, Lucia Melisa; Galati, Beatriz Gloria; Ferrucci, María Silvia; Ovule and female gametophyte in representatives of Nymphaea subgenus Hydrocallis and Victoria (Nymphaeaceae; Nymphaeoideae); Elsevier Science; Aquatic Botany; 120; Part B; 10-2015; 322-332
0304-3770
url http://hdl.handle.net/11336/7008
identifier_str_mv Zini, Lucia Melisa; Galati, Beatriz Gloria; Ferrucci, María Silvia; Ovule and female gametophyte in representatives of Nymphaea subgenus Hydrocallis and Victoria (Nymphaeaceae; Nymphaeoideae); Elsevier Science; Aquatic Botany; 120; Part B; 10-2015; 322-332
0304-3770
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.aquabot.2014.09.012
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0304377014001521
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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 12.48226

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