Anther structure and pollen development in species of Rubiaceae and anatomical evidence of pathway to morphological dioecy

Autores
Judkevich, Marina Daniela; Salas, Roberto Manuel; Gonzalez, Ana Maria
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fil: Judkevich, Marina Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina
Fil: Salas, Roberto Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina
Fil: Salas, Roberto Manuel. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas y Naturales y Agrimensura; Argentina.
Fil: Gonzalez, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina
Fil: Gonzalez, Ana Maria. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina
We conducted anatomical analysis of anthers with the aim to establish the differences in the development pattern of microsporophytes and microgametophytes between perfect and imperfect flowers in the tribe Gardenieae (Rubiaceae). The species studied were: Tocoyena formosa (monoecious with perfect flowers), Cordiera concolor, Genipa americana, Randia calycina, and Randia heteromera (dioecious with imperfect flowers). Flowers in successive stages of development were collected and fixed. The material was processed and examined using light microscopy and scanning electron microscopy. The present study revealed the stage when pollen is arrested in the functionally pistillate flowers of the dioecious taxa. Based on these observations an evolutionary sequence of changes towards the reduction of non-functional anthers in Rubiaceae is proposed. In addition, we describe and discuss characters that might be of importance in future phylogenetic studies in Rubiaceae (e.g., pollen morphology and its dispersal unit, the presence of orbicules, and a new type of placentoid).
Fuente
Anais da Academia Brasileira de Ciências, 2022, vol. 94, no. 4, p. 1-24.
Materia
Arrested development
Permanent tetrads
Placentoid
Rubiaceae
Secondary pollen presentation
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
Institución
Universidad Nacional del Nordeste
OAI Identificador
oai:repositorio.unne.edu.ar:123456789/61742
Acceder
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oai_identifier_str oai:repositorio.unne.edu.ar:123456789/61742
network_acronym_str RIUNNE
repository_id_str 4871
network_name_str Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
spelling Anther structure and pollen development in species of Rubiaceae and anatomical evidence of pathway to morphological dioecyJudkevich, Marina DanielaSalas, Roberto ManuelGonzalez, Ana MariaArrested developmentPermanent tetradsPlacentoidRubiaceaeSecondary pollen presentationFil: Judkevich, Marina Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; ArgentinaFil: Salas, Roberto Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; ArgentinaFil: Salas, Roberto Manuel. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas y Naturales y Agrimensura; Argentina.Fil: Gonzalez, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; ArgentinaFil: Gonzalez, Ana Maria. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; ArgentinaWe conducted anatomical analysis of anthers with the aim to establish the differences in the development pattern of microsporophytes and microgametophytes between perfect and imperfect flowers in the tribe Gardenieae (Rubiaceae). The species studied were: Tocoyena formosa (monoecious with perfect flowers), Cordiera concolor, Genipa americana, Randia calycina, and Randia heteromera (dioecious with imperfect flowers). Flowers in successive stages of development were collected and fixed. The material was processed and examined using light microscopy and scanning electron microscopy. The present study revealed the stage when pollen is arrested in the functionally pistillate flowers of the dioecious taxa. Based on these observations an evolutionary sequence of changes towards the reduction of non-functional anthers in Rubiaceae is proposed. In addition, we describe and discuss characters that might be of importance in future phylogenetic studies in Rubiaceae (e.g., pollen morphology and its dispersal unit, the presence of orbicules, and a new type of placentoid).Academia Brasileira de Ciências2022info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfp. 1-24application/pdfJudkevich, Marina Daniela, Salas, Roberto Manuel y González, Ana María, 2022. Anther structure and pollen development in species of Rubiaceae and anatomical evidence of pathway to morphological dioecy. Anais da Academia Brasileira de Ciências. Rio de Janeiro: Academia Brasileira de Ciências, vol. 94, no. 4, p. 1-24. E-ISSN 1678-2690. DOI https://doi.org/10.1590/0001-37652022201913620001-3765https://repositorio.unne.edu.ar/handle/123456789/61742Anais da Academia Brasileira de Ciências, 2022, vol. 94, no. 4, p. 1-24.reponame:Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)instname:Universidad Nacional del Nordesteenghttps://doi.org/10.1590/0001-3765202220191362info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/2.5/ar/Atribución-NoComercial-SinDerivadas 2.5 Argentina2026-09-24T12:49:23Zoai:repositorio.unne.edu.ar:123456789/61742instacron:UNNEInstitucionalhttp://repositorio.unne.edu.ar/Universidad públicaNo correspondehttp://repositorio.unne.edu.ar/oaiososa@bib.unne.edu.ar;sergio.alegria@unne.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:48712026-09-24 12:49:24.696Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) - Universidad Nacional del Nordestefalse
dc.title.none.fl_str_mv Anther structure and pollen development in species of Rubiaceae and anatomical evidence of pathway to morphological dioecy
title Anther structure and pollen development in species of Rubiaceae and anatomical evidence of pathway to morphological dioecy
spellingShingle Anther structure and pollen development in species of Rubiaceae and anatomical evidence of pathway to morphological dioecy
Judkevich, Marina Daniela
Arrested development
Permanent tetrads
Placentoid
Rubiaceae
Secondary pollen presentation
title_short Anther structure and pollen development in species of Rubiaceae and anatomical evidence of pathway to morphological dioecy
title_full Anther structure and pollen development in species of Rubiaceae and anatomical evidence of pathway to morphological dioecy
title_fullStr Anther structure and pollen development in species of Rubiaceae and anatomical evidence of pathway to morphological dioecy
title_full_unstemmed Anther structure and pollen development in species of Rubiaceae and anatomical evidence of pathway to morphological dioecy
title_sort Anther structure and pollen development in species of Rubiaceae and anatomical evidence of pathway to morphological dioecy
dc.creator.none.fl_str_mv Judkevich, Marina Daniela
Salas, Roberto Manuel
Gonzalez, Ana Maria
author Judkevich, Marina Daniela
author_facet Judkevich, Marina Daniela
Salas, Roberto Manuel
Gonzalez, Ana Maria
author_role author
author2 Salas, Roberto Manuel
Gonzalez, Ana Maria
author2_role author
author
dc.subject.none.fl_str_mv Arrested development
Permanent tetrads
Placentoid
Rubiaceae
Secondary pollen presentation
topic Arrested development
Permanent tetrads
Placentoid
Rubiaceae
Secondary pollen presentation
dc.description.none.fl_txt_mv Fil: Judkevich, Marina Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina
Fil: Salas, Roberto Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina
Fil: Salas, Roberto Manuel. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas y Naturales y Agrimensura; Argentina.
Fil: Gonzalez, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina
Fil: Gonzalez, Ana Maria. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina
We conducted anatomical analysis of anthers with the aim to establish the differences in the development pattern of microsporophytes and microgametophytes between perfect and imperfect flowers in the tribe Gardenieae (Rubiaceae). The species studied were: Tocoyena formosa (monoecious with perfect flowers), Cordiera concolor, Genipa americana, Randia calycina, and Randia heteromera (dioecious with imperfect flowers). Flowers in successive stages of development were collected and fixed. The material was processed and examined using light microscopy and scanning electron microscopy. The present study revealed the stage when pollen is arrested in the functionally pistillate flowers of the dioecious taxa. Based on these observations an evolutionary sequence of changes towards the reduction of non-functional anthers in Rubiaceae is proposed. In addition, we describe and discuss characters that might be of importance in future phylogenetic studies in Rubiaceae (e.g., pollen morphology and its dispersal unit, the presence of orbicules, and a new type of placentoid).
description Fil: Judkevich, Marina Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina
publishDate 2022
dc.date.none.fl_str_mv 2022
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 Judkevich, Marina Daniela, Salas, Roberto Manuel y González, Ana María, 2022. Anther structure and pollen development in species of Rubiaceae and anatomical evidence of pathway to morphological dioecy. Anais da Academia Brasileira de Ciências. Rio de Janeiro: Academia Brasileira de Ciências, vol. 94, no. 4, p. 1-24. E-ISSN 1678-2690. DOI https://doi.org/10.1590/0001-3765202220191362
0001-3765
https://repositorio.unne.edu.ar/handle/123456789/61742
identifier_str_mv Judkevich, Marina Daniela, Salas, Roberto Manuel y González, Ana María, 2022. Anther structure and pollen development in species of Rubiaceae and anatomical evidence of pathway to morphological dioecy. Anais da Academia Brasileira de Ciências. Rio de Janeiro: Academia Brasileira de Ciências, vol. 94, no. 4, p. 1-24. E-ISSN 1678-2690. DOI https://doi.org/10.1590/0001-3765202220191362
0001-3765
url https://repositorio.unne.edu.ar/handle/123456789/61742
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://doi.org/10.1590/0001-3765202220191362
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Atribución-NoComercial-SinDerivadas 2.5 Argentina
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Atribución-NoComercial-SinDerivadas 2.5 Argentina
dc.format.none.fl_str_mv application/pdf
p. 1-24
application/pdf
dc.publisher.none.fl_str_mv Academia Brasileira de Ciências
publisher.none.fl_str_mv Academia Brasileira de Ciências
dc.source.none.fl_str_mv Anais da Academia Brasileira de Ciências, 2022, vol. 94, no. 4, p. 1-24.
reponame:Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
instname:Universidad Nacional del Nordeste
reponame_str Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
collection Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
instname_str Universidad Nacional del Nordeste
repository.name.fl_str_mv Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) - Universidad Nacional del Nordeste
repository.mail.fl_str_mv ososa@bib.unne.edu.ar;sergio.alegria@unne.edu.ar
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score 13.265058

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