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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/6173
Ver los metadatos del registro completo
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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 Técnicas2025-09-29T10:38:35Zoai: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:34982025-09-29 10:38:35.407CONICET 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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1844614409232580608 |
score |
13.070432 |