Cytogenetic relationships, polyploid origin, and taxonomic issues in Paspalum species: inter- and intraspecific hybrids between a sexual synthetic autotetraploid and five wild apom...
- Autores
- Novo, Patricia Elda; Galdeano, Florencia; Espinoza, Francisco; Quarin, Camilo Luis
- Año de publicación
- 2018
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Paspalum is a noteworthy grass genus due to the forage quality of most species, the total number of approximately 330 species, and the high proportion of those that reproduce via apomixis. Harnessing apomictic reproduction and widening the knowledge about the cytogenetic relationships among species are elemental tools for plant breeding.We conducted cytogenetic analyses of inter‐ and intraspecific hybridizations involving a sexual, colchicine‐induced autotetraploid plant of P.plicatulum Michx. and five indigenous apomictic tetraploid (2n = 40) species: P. compressifolium Swallen, P. lenticulare Kunth, two accessions of P. nicorae Parodi, P. rojasii Hack., and two accessions of P. plicatulum. The fertility of the hybrids was investigated and their reproductive system was analyzed considering the relative embryo:endosperm DNA content by flow cytometry. Morphological, nomenclatural and taxonomic issues were also analyzed.Cytogenetic analysis suggested that all indigenous tetraploid accessions of five apomictic species are autotetraploid or segmental allotetraploid. If segmental allotetraploids, they probably originated by autoploidy followed by diploidization processes. Autosyndetic male‐chromosome pairing observed in all hybrid families supported this assertion. Allosyndetic chromosome associations were also observed in all hybrid families. In the hybrids, the proportion of male‐parent chromosomes involved in allosyndesis per pollen mother cell varied from 5.5 to 35% and the maximum ranged between 25‐60%. The apomictic condition of the indigenous male parents segregated in the hybrids.These results confirm a strong association between autoploidy and apomixis in Paspalum, and the existence of cytogenetic relationships between different species of the Plicatula group. Allosyndetic chromosome pairing and seed fertility of the hybrids suggest the feasibility of gene transfer among species.
Fil: Novo, Patricia Elda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina
Fil: Galdeano, Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina
Fil: Espinoza, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina
Fil: Quarin, Camilo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina - Materia
-
PASPALUM
GENE EXCHANGE
INTERSPECIFIC COSSES
HYBRID FERTILITY - 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:11336/108221
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Cytogenetic relationships, polyploid origin, and taxonomic issues in Paspalum species: inter- and intraspecific hybrids between a sexual synthetic autotetraploid and five wild apomictic tetraploid speciesNovo, Patricia EldaGaldeano, FlorenciaEspinoza, FranciscoQuarin, Camilo LuisPASPALUMGENE EXCHANGEINTERSPECIFIC COSSESHYBRID FERTILITYhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Paspalum is a noteworthy grass genus due to the forage quality of most species, the total number of approximately 330 species, and the high proportion of those that reproduce via apomixis. Harnessing apomictic reproduction and widening the knowledge about the cytogenetic relationships among species are elemental tools for plant breeding.We conducted cytogenetic analyses of inter‐ and intraspecific hybridizations involving a sexual, colchicine‐induced autotetraploid plant of P.plicatulum Michx. and five indigenous apomictic tetraploid (2n = 40) species: P. compressifolium Swallen, P. lenticulare Kunth, two accessions of P. nicorae Parodi, P. rojasii Hack., and two accessions of P. plicatulum. The fertility of the hybrids was investigated and their reproductive system was analyzed considering the relative embryo:endosperm DNA content by flow cytometry. Morphological, nomenclatural and taxonomic issues were also analyzed.Cytogenetic analysis suggested that all indigenous tetraploid accessions of five apomictic species are autotetraploid or segmental allotetraploid. If segmental allotetraploids, they probably originated by autoploidy followed by diploidization processes. Autosyndetic male‐chromosome pairing observed in all hybrid families supported this assertion. Allosyndetic chromosome associations were also observed in all hybrid families. In the hybrids, the proportion of male‐parent chromosomes involved in allosyndesis per pollen mother cell varied from 5.5 to 35% and the maximum ranged between 25‐60%. The apomictic condition of the indigenous male parents segregated in the hybrids.These results confirm a strong association between autoploidy and apomixis in Paspalum, and the existence of cytogenetic relationships between different species of the Plicatula group. Allosyndetic chromosome pairing and seed fertility of the hybrids suggest the feasibility of gene transfer among species.Fil: Novo, Patricia Elda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; ArgentinaFil: Galdeano, Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; ArgentinaFil: Espinoza, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; ArgentinaFil: Quarin, Camilo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; ArgentinaWiley Blackwell Publishing, Inc2018-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/108221Novo, Patricia Elda; Galdeano, Florencia; Espinoza, Francisco; Quarin, Camilo Luis; Cytogenetic relationships, polyploid origin, and taxonomic issues in Paspalum species: inter- and intraspecific hybrids between a sexual synthetic autotetraploid and five wild apomictic tetraploid species; Wiley Blackwell Publishing, Inc; Plant Biology; 21; 2; 11-2018; 267-2771435-8603CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1111/plb.12931info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/plb.12931info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:38:01Zoai:ri.conicet.gov.ar:11336/108221instacron: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 09:38:02.239CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Cytogenetic relationships, polyploid origin, and taxonomic issues in Paspalum species: inter- and intraspecific hybrids between a sexual synthetic autotetraploid and five wild apomictic tetraploid species |
title |
Cytogenetic relationships, polyploid origin, and taxonomic issues in Paspalum species: inter- and intraspecific hybrids between a sexual synthetic autotetraploid and five wild apomictic tetraploid species |
spellingShingle |
Cytogenetic relationships, polyploid origin, and taxonomic issues in Paspalum species: inter- and intraspecific hybrids between a sexual synthetic autotetraploid and five wild apomictic tetraploid species Novo, Patricia Elda PASPALUM GENE EXCHANGE INTERSPECIFIC COSSES HYBRID FERTILITY |
title_short |
Cytogenetic relationships, polyploid origin, and taxonomic issues in Paspalum species: inter- and intraspecific hybrids between a sexual synthetic autotetraploid and five wild apomictic tetraploid species |
title_full |
Cytogenetic relationships, polyploid origin, and taxonomic issues in Paspalum species: inter- and intraspecific hybrids between a sexual synthetic autotetraploid and five wild apomictic tetraploid species |
title_fullStr |
Cytogenetic relationships, polyploid origin, and taxonomic issues in Paspalum species: inter- and intraspecific hybrids between a sexual synthetic autotetraploid and five wild apomictic tetraploid species |
title_full_unstemmed |
Cytogenetic relationships, polyploid origin, and taxonomic issues in Paspalum species: inter- and intraspecific hybrids between a sexual synthetic autotetraploid and five wild apomictic tetraploid species |
title_sort |
Cytogenetic relationships, polyploid origin, and taxonomic issues in Paspalum species: inter- and intraspecific hybrids between a sexual synthetic autotetraploid and five wild apomictic tetraploid species |
dc.creator.none.fl_str_mv |
Novo, Patricia Elda Galdeano, Florencia Espinoza, Francisco Quarin, Camilo Luis |
author |
Novo, Patricia Elda |
author_facet |
Novo, Patricia Elda Galdeano, Florencia Espinoza, Francisco Quarin, Camilo Luis |
author_role |
author |
author2 |
Galdeano, Florencia Espinoza, Francisco Quarin, Camilo Luis |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
PASPALUM GENE EXCHANGE INTERSPECIFIC COSSES HYBRID FERTILITY |
topic |
PASPALUM GENE EXCHANGE INTERSPECIFIC COSSES HYBRID FERTILITY |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Paspalum is a noteworthy grass genus due to the forage quality of most species, the total number of approximately 330 species, and the high proportion of those that reproduce via apomixis. Harnessing apomictic reproduction and widening the knowledge about the cytogenetic relationships among species are elemental tools for plant breeding.We conducted cytogenetic analyses of inter‐ and intraspecific hybridizations involving a sexual, colchicine‐induced autotetraploid plant of P.plicatulum Michx. and five indigenous apomictic tetraploid (2n = 40) species: P. compressifolium Swallen, P. lenticulare Kunth, two accessions of P. nicorae Parodi, P. rojasii Hack., and two accessions of P. plicatulum. The fertility of the hybrids was investigated and their reproductive system was analyzed considering the relative embryo:endosperm DNA content by flow cytometry. Morphological, nomenclatural and taxonomic issues were also analyzed.Cytogenetic analysis suggested that all indigenous tetraploid accessions of five apomictic species are autotetraploid or segmental allotetraploid. If segmental allotetraploids, they probably originated by autoploidy followed by diploidization processes. Autosyndetic male‐chromosome pairing observed in all hybrid families supported this assertion. Allosyndetic chromosome associations were also observed in all hybrid families. In the hybrids, the proportion of male‐parent chromosomes involved in allosyndesis per pollen mother cell varied from 5.5 to 35% and the maximum ranged between 25‐60%. The apomictic condition of the indigenous male parents segregated in the hybrids.These results confirm a strong association between autoploidy and apomixis in Paspalum, and the existence of cytogenetic relationships between different species of the Plicatula group. Allosyndetic chromosome pairing and seed fertility of the hybrids suggest the feasibility of gene transfer among species. Fil: Novo, Patricia Elda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina Fil: Galdeano, Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina Fil: Espinoza, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina Fil: Quarin, Camilo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina |
description |
Paspalum is a noteworthy grass genus due to the forage quality of most species, the total number of approximately 330 species, and the high proportion of those that reproduce via apomixis. Harnessing apomictic reproduction and widening the knowledge about the cytogenetic relationships among species are elemental tools for plant breeding.We conducted cytogenetic analyses of inter‐ and intraspecific hybridizations involving a sexual, colchicine‐induced autotetraploid plant of P.plicatulum Michx. and five indigenous apomictic tetraploid (2n = 40) species: P. compressifolium Swallen, P. lenticulare Kunth, two accessions of P. nicorae Parodi, P. rojasii Hack., and two accessions of P. plicatulum. The fertility of the hybrids was investigated and their reproductive system was analyzed considering the relative embryo:endosperm DNA content by flow cytometry. Morphological, nomenclatural and taxonomic issues were also analyzed.Cytogenetic analysis suggested that all indigenous tetraploid accessions of five apomictic species are autotetraploid or segmental allotetraploid. If segmental allotetraploids, they probably originated by autoploidy followed by diploidization processes. Autosyndetic male‐chromosome pairing observed in all hybrid families supported this assertion. Allosyndetic chromosome associations were also observed in all hybrid families. In the hybrids, the proportion of male‐parent chromosomes involved in allosyndesis per pollen mother cell varied from 5.5 to 35% and the maximum ranged between 25‐60%. The apomictic condition of the indigenous male parents segregated in the hybrids.These results confirm a strong association between autoploidy and apomixis in Paspalum, and the existence of cytogenetic relationships between different species of the Plicatula group. Allosyndetic chromosome pairing and seed fertility of the hybrids suggest the feasibility of gene transfer among species. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-11 |
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/11336/108221 Novo, Patricia Elda; Galdeano, Florencia; Espinoza, Francisco; Quarin, Camilo Luis; Cytogenetic relationships, polyploid origin, and taxonomic issues in Paspalum species: inter- and intraspecific hybrids between a sexual synthetic autotetraploid and five wild apomictic tetraploid species; Wiley Blackwell Publishing, Inc; Plant Biology; 21; 2; 11-2018; 267-277 1435-8603 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/108221 |
identifier_str_mv |
Novo, Patricia Elda; Galdeano, Florencia; Espinoza, Francisco; Quarin, Camilo Luis; Cytogenetic relationships, polyploid origin, and taxonomic issues in Paspalum species: inter- and intraspecific hybrids between a sexual synthetic autotetraploid and five wild apomictic tetraploid species; Wiley Blackwell Publishing, Inc; Plant Biology; 21; 2; 11-2018; 267-277 1435-8603 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1111/plb.12931 info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/plb.12931 |
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 application/pdf |
dc.publisher.none.fl_str_mv |
Wiley Blackwell Publishing, Inc |
publisher.none.fl_str_mv |
Wiley Blackwell Publishing, Inc |
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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1844613201008787456 |
score |
13.070432 |