Heterosis, and expressivity of apospory in tetraploid Bahiagrass hybrids

Autores
Zilli, Alex Leonel; Brugnoli, Elsa Andrea; Marcón, Florencia; Billa, M. B.; Rios, Esteban Fernando; Martínez, Eric Javier; Acuña, Carlos Alberto
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Breeding procedures developed for apomictic species are based on the idea of fixing superior hybrids by apomixis. However, scarce information is available about the occurrence of heterosis in apomictic hybrids. The objective was to generate a group of apomixis-segregating tetraploid bahiagrass families, evaluate the occurrence of heterosis for a series of agronomic and morphological traits, determine the level of apospory expressivity among hybrids, and estimate the genetic distance among parents and its relationship to heterosis and apospory expressivity. In total, 11 tetraploid families were generated by crossing sexual and apomitic genotypes. The segregation for mode of reproduction was analyzed using a RAPD marker linked to apospory in bahiagrass, and the level of apospory expressivity was determined using embryo sac observations. The genetic distances between parents were determined using ISSR markers. The ratio between sexual and aposporic hybrids varied from 1:1 to 7:1 among families. Discontinuous variation for apospory expressivity was observed in the hybrids, with either low or high levels being exhibited. Mid-parent, high-parent, and standard-heterosis was observed for all evaluated agronomic characteristics. The level of heterosis was dependent on the combination of parents involved, and also on the specific trait. There was a low correlation between genetic distances among parents and initial growth and the level of apospory expressivity. The occurrence of heterosis, and the segregation and expressivity for apospory were highly dependent on the combination of sexual and apomictic parents.
Fil: Zilli, Alex Leonel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina
Fil: Brugnoli, Elsa Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina
Fil: Marcón, Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina
Fil: Billa, M. B.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina
Fil: Rios, Esteban Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina
Fil: Martínez, Eric Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina
Fil: Acuña, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina
Materia
Heterosis
Apomixis
Paspalum Notatum
Issr (Inter-Simple Sequence Repeat)
Pcr (Polymerase Chain Reaction)
Rapd (Random Amplified Polymorphic)
Dna
Ssr (Single Sequence Repeat)
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:11336/6173
Acceder
id CONICETDig_66a02ab0164bacf2fe008e7d42138bc7
oai_identifier_str oai:ri.conicet.gov.ar:11336/6173
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Heterosis, and expressivity of apospory in tetraploid Bahiagrass hybridsZilli, Alex LeonelBrugnoli, Elsa AndreaMarcón, FlorenciaBilla, M. B.Rios, Esteban FernandoMartínez, Eric JavierAcuña, Carlos AlbertoHeterosisApomixisPaspalum NotatumIssr (Inter-Simple Sequence Repeat)Pcr (Polymerase Chain Reaction)Rapd (Random Amplified Polymorphic)DnaSsr (Single Sequence Repeat)https://purl.org/becyt/ford/4.4https://purl.org/becyt/ford/4Breeding procedures developed for apomictic species are based on the idea of fixing superior hybrids by apomixis. However, scarce information is available about the occurrence of heterosis in apomictic hybrids. The objective was to generate a group of apomixis-segregating tetraploid bahiagrass families, evaluate the occurrence of heterosis for a series of agronomic and morphological traits, determine the level of apospory expressivity among hybrids, and estimate the genetic distance among parents and its relationship to heterosis and apospory expressivity. In total, 11 tetraploid families were generated by crossing sexual and apomitic genotypes. The segregation for mode of reproduction was analyzed using a RAPD marker linked to apospory in bahiagrass, and the level of apospory expressivity was determined using embryo sac observations. The genetic distances between parents were determined using ISSR markers. The ratio between sexual and aposporic hybrids varied from 1:1 to 7:1 among families. Discontinuous variation for apospory expressivity was observed in the hybrids, with either low or high levels being exhibited. Mid-parent, high-parent, and standard-heterosis was observed for all evaluated agronomic characteristics. The level of heterosis was dependent on the combination of parents involved, and also on the specific trait. There was a low correlation between genetic distances among parents and initial growth and the level of apospory expressivity. The occurrence of heterosis, and the segregation and expressivity for apospory were highly dependent on the combination of sexual and apomictic parents.Fil: Zilli, Alex Leonel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); ArgentinaFil: Brugnoli, Elsa Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); ArgentinaFil: Marcón, Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); ArgentinaFil: Billa, M. B.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); ArgentinaFil: Rios, Esteban Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); ArgentinaFil: Martínez, Eric Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); ArgentinaFil: Acuña, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); ArgentinaCrop Science Soc Amer2015-05info: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/11336/6173Zilli, Alex Leonel; Brugnoli, Elsa Andrea; Marcón, Florencia; Billa, M. B.; Rios, Esteban Fernando; et al.; Heterosis, and expressivity of apospory in tetraploid Bahiagrass hybrids; Crop Science Soc Amer; Crop Science; 55; 3; 5-2015; 1189-12010011-183X1435-0653enginfo:eu-repo/semantics/altIdentifier/doi/10.2135/cropsci2014.10.0685info:eu-repo/semantics/altIdentifier/url/https://dl.sciencesocieties.org/publications/cs/abstracts/55/3/1189info:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:10:47Zoai:ri.conicet.gov.ar:11336/6173instacron: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 12:10:47.352CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Heterosis, and expressivity of apospory in tetraploid Bahiagrass hybrids
title Heterosis, and expressivity of apospory in tetraploid Bahiagrass hybrids
spellingShingle Heterosis, and expressivity of apospory in tetraploid Bahiagrass hybrids
Zilli, Alex Leonel
Heterosis
Apomixis
Paspalum Notatum
Issr (Inter-Simple Sequence Repeat)
Pcr (Polymerase Chain Reaction)
Rapd (Random Amplified Polymorphic)
Dna
Ssr (Single Sequence Repeat)
title_short Heterosis, and expressivity of apospory in tetraploid Bahiagrass hybrids
title_full Heterosis, and expressivity of apospory in tetraploid Bahiagrass hybrids
title_fullStr Heterosis, and expressivity of apospory in tetraploid Bahiagrass hybrids
title_full_unstemmed Heterosis, and expressivity of apospory in tetraploid Bahiagrass hybrids
title_sort Heterosis, and expressivity of apospory in tetraploid Bahiagrass hybrids
dc.creator.none.fl_str_mv Zilli, Alex Leonel
Brugnoli, Elsa Andrea
Marcón, Florencia
Billa, M. B.
Rios, Esteban Fernando
Martínez, Eric Javier
Acuña, Carlos Alberto
author Zilli, Alex Leonel
author_facet Zilli, Alex Leonel
Brugnoli, Elsa Andrea
Marcón, Florencia
Billa, M. B.
Rios, Esteban Fernando
Martínez, Eric Javier
Acuña, Carlos Alberto
author_role author
author2 Brugnoli, Elsa Andrea
Marcón, Florencia
Billa, M. B.
Rios, Esteban Fernando
Martínez, Eric Javier
Acuña, Carlos Alberto
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Heterosis
Apomixis
Paspalum Notatum
Issr (Inter-Simple Sequence Repeat)
Pcr (Polymerase Chain Reaction)
Rapd (Random Amplified Polymorphic)
Dna
Ssr (Single Sequence Repeat)
topic Heterosis
Apomixis
Paspalum Notatum
Issr (Inter-Simple Sequence Repeat)
Pcr (Polymerase Chain Reaction)
Rapd (Random Amplified Polymorphic)
Dna
Ssr (Single Sequence Repeat)
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.4
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv Breeding procedures developed for apomictic species are based on the idea of fixing superior hybrids by apomixis. However, scarce information is available about the occurrence of heterosis in apomictic hybrids. The objective was to generate a group of apomixis-segregating tetraploid bahiagrass families, evaluate the occurrence of heterosis for a series of agronomic and morphological traits, determine the level of apospory expressivity among hybrids, and estimate the genetic distance among parents and its relationship to heterosis and apospory expressivity. In total, 11 tetraploid families were generated by crossing sexual and apomitic genotypes. The segregation for mode of reproduction was analyzed using a RAPD marker linked to apospory in bahiagrass, and the level of apospory expressivity was determined using embryo sac observations. The genetic distances between parents were determined using ISSR markers. The ratio between sexual and aposporic hybrids varied from 1:1 to 7:1 among families. Discontinuous variation for apospory expressivity was observed in the hybrids, with either low or high levels being exhibited. Mid-parent, high-parent, and standard-heterosis was observed for all evaluated agronomic characteristics. The level of heterosis was dependent on the combination of parents involved, and also on the specific trait. There was a low correlation between genetic distances among parents and initial growth and the level of apospory expressivity. The occurrence of heterosis, and the segregation and expressivity for apospory were highly dependent on the combination of sexual and apomictic parents.
Fil: Zilli, Alex Leonel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina
Fil: Brugnoli, Elsa Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina
Fil: Marcón, Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina
Fil: Billa, M. B.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina
Fil: Rios, Esteban Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina
Fil: Martínez, Eric Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina
Fil: Acuña, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina
description Breeding procedures developed for apomictic species are based on the idea of fixing superior hybrids by apomixis. However, scarce information is available about the occurrence of heterosis in apomictic hybrids. The objective was to generate a group of apomixis-segregating tetraploid bahiagrass families, evaluate the occurrence of heterosis for a series of agronomic and morphological traits, determine the level of apospory expressivity among hybrids, and estimate the genetic distance among parents and its relationship to heterosis and apospory expressivity. In total, 11 tetraploid families were generated by crossing sexual and apomitic genotypes. The segregation for mode of reproduction was analyzed using a RAPD marker linked to apospory in bahiagrass, and the level of apospory expressivity was determined using embryo sac observations. The genetic distances between parents were determined using ISSR markers. The ratio between sexual and aposporic hybrids varied from 1:1 to 7:1 among families. Discontinuous variation for apospory expressivity was observed in the hybrids, with either low or high levels being exhibited. Mid-parent, high-parent, and standard-heterosis was observed for all evaluated agronomic characteristics. The level of heterosis was dependent on the combination of parents involved, and also on the specific trait. There was a low correlation between genetic distances among parents and initial growth and the level of apospory expressivity. The occurrence of heterosis, and the segregation and expressivity for apospory were highly dependent on the combination of sexual and apomictic parents.
publishDate 2015
dc.date.none.fl_str_mv 2015-05
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/11336/6173
Zilli, Alex Leonel; Brugnoli, Elsa Andrea; Marcón, Florencia; Billa, M. B.; Rios, Esteban Fernando; et al.; Heterosis, and expressivity of apospory in tetraploid Bahiagrass hybrids; Crop Science Soc Amer; Crop Science; 55; 3; 5-2015; 1189-1201
0011-183X
1435-0653
url http://hdl.handle.net/11336/6173
identifier_str_mv Zilli, Alex Leonel; Brugnoli, Elsa Andrea; Marcón, Florencia; Billa, M. B.; Rios, Esteban Fernando; et al.; Heterosis, and expressivity of apospory in tetraploid Bahiagrass hybrids; Crop Science Soc Amer; Crop Science; 55; 3; 5-2015; 1189-1201
0011-183X
1435-0653
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.2135/cropsci2014.10.0685
info:eu-repo/semantics/altIdentifier/url/https://dl.sciencesocieties.org/publications/cs/abstracts/55/3/1189
info:eu-repo/semantics/altIdentifier/doi/
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
application/pdf
dc.publisher.none.fl_str_mv Crop Science Soc Amer
publisher.none.fl_str_mv Crop Science Soc Amer
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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