A New Allopolyploid Species of Saccharum (Poaceae ‐ Andropogoneae) from South America, with Notes on its Cytogenetics

Autores
Welker, Cassiano A. D.; Souza Chies, Tatiana T.; Peichoto, Myriam Carolina; Oliveira, Reyjane P.; Carvalho, Luana C.; Muccillo, Victória B. S.; Kellogg, Elizabeth Anne; Kaltchuk-Santos, Eliane
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Allopolyploidy is a major mode of speciation in flowering plants and particularly in the grass tribe Andropogoneae, which includessugarcane (Saccharum officinarum) and relatives. A new species of Saccharum from South America (S. intermedium) is described here, supported bymorphological, molecular and cytogenetic evidence. Previous molecular analyses indicated an allopolyploid origin of the new species throughinterspecific hybridization between S. angustifolium and S. villosum. The new taxon has intermediate morphology between the two parental species.Cytogenetic analyses of the three species were performed, including chromosome counts, meiotic regularity, and pollen viability and morphology.The new taxon is hexaploid (2n = 60), while the parental species are triploids (2n = 30), confirming the ploidy level suggested by the number ofparalogues in phylogenetic trees based on low-copy nuclear genes. This represents the first chromosome count for S. intermedium and a new cytotypefor S. villosum. Although both parental species are triploids, they surprisingly exhibited regular meiosis and high pollen viability, indicating they aremale-fertile, as is the hexaploid new species. Data on geographic distribution and phenology is also presented, aswell as a key for the South Americanspecies of Saccharum.
Fil: Welker, Cassiano A. D.. Universidade Federal de Uberlandia; Brasil
Fil: Souza Chies, Tatiana T.. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Peichoto, Myriam Carolina. 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: Oliveira, Reyjane P.. Universidade Estadual de Feira de Santana; Brasil
Fil: Carvalho, Luana C.. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Muccillo, Victória B. S.. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Kellogg, Elizabeth Anne. Donald Danforth Plant Science Center; Estados Unidos
Fil: Kaltchuk-Santos, Eliane. Universidade Federal do Rio Grande do Sul; Brasil
Materia
Chromosome Number
Hibridization
Polyploidy
Sugarcane
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:11336/46838
Acceder
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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling A New Allopolyploid Species of Saccharum (Poaceae ‐ Andropogoneae) from South America, with Notes on its CytogeneticsWelker, Cassiano A. D.Souza Chies, Tatiana T.Peichoto, Myriam CarolinaOliveira, Reyjane P.Carvalho, Luana C.Muccillo, Victória B. S.Kellogg, Elizabeth AnneKaltchuk-Santos, ElianeChromosome NumberHibridizationPolyploidySugarcanehttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Allopolyploidy is a major mode of speciation in flowering plants and particularly in the grass tribe Andropogoneae, which includessugarcane (Saccharum officinarum) and relatives. A new species of Saccharum from South America (S. intermedium) is described here, supported bymorphological, molecular and cytogenetic evidence. Previous molecular analyses indicated an allopolyploid origin of the new species throughinterspecific hybridization between S. angustifolium and S. villosum. The new taxon has intermediate morphology between the two parental species.Cytogenetic analyses of the three species were performed, including chromosome counts, meiotic regularity, and pollen viability and morphology.The new taxon is hexaploid (2n = 60), while the parental species are triploids (2n = 30), confirming the ploidy level suggested by the number ofparalogues in phylogenetic trees based on low-copy nuclear genes. This represents the first chromosome count for S. intermedium and a new cytotypefor S. villosum. Although both parental species are triploids, they surprisingly exhibited regular meiosis and high pollen viability, indicating they aremale-fertile, as is the hexaploid new species. Data on geographic distribution and phenology is also presented, aswell as a key for the South Americanspecies of Saccharum.Fil: Welker, Cassiano A. D.. Universidade Federal de Uberlandia; BrasilFil: Souza Chies, Tatiana T.. Universidade Federal do Rio Grande do Sul; BrasilFil: Peichoto, Myriam Carolina. 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: Oliveira, Reyjane P.. Universidade Estadual de Feira de Santana; BrasilFil: Carvalho, Luana C.. Universidade Federal do Rio Grande do Sul; BrasilFil: Muccillo, Victória B. S.. Universidade Federal do Rio Grande do Sul; BrasilFil: Kellogg, Elizabeth Anne. Donald Danforth Plant Science Center; Estados UnidosFil: Kaltchuk-Santos, Eliane. Universidade Federal do Rio Grande do Sul; BrasilAmerican Society of Plant Taxonomists2017-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/46838Welker, Cassiano A. D.; Souza Chies, Tatiana T.; Peichoto, Myriam Carolina; Oliveira, Reyjane P.; Carvalho, Luana C.; et al.; A New Allopolyploid Species of Saccharum (Poaceae ‐ Andropogoneae) from South America, with Notes on its Cytogenetics; American Society of Plant Taxonomists; Systematic Botany; 42; 3; 9-2017; 507-5150363-6445CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.ingentaconnect.com/content/10.1600/036364417X696005info:eu-repo/semantics/altIdentifier/doi/10.1600/036364417X696005info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:03:39Zoai:ri.conicet.gov.ar:11336/46838instacron: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 13:03:40.018CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A New Allopolyploid Species of Saccharum (Poaceae ‐ Andropogoneae) from South America, with Notes on its Cytogenetics
title A New Allopolyploid Species of Saccharum (Poaceae ‐ Andropogoneae) from South America, with Notes on its Cytogenetics
spellingShingle A New Allopolyploid Species of Saccharum (Poaceae ‐ Andropogoneae) from South America, with Notes on its Cytogenetics
Welker, Cassiano A. D.
Chromosome Number
Hibridization
Polyploidy
Sugarcane
title_short A New Allopolyploid Species of Saccharum (Poaceae ‐ Andropogoneae) from South America, with Notes on its Cytogenetics
title_full A New Allopolyploid Species of Saccharum (Poaceae ‐ Andropogoneae) from South America, with Notes on its Cytogenetics
title_fullStr A New Allopolyploid Species of Saccharum (Poaceae ‐ Andropogoneae) from South America, with Notes on its Cytogenetics
title_full_unstemmed A New Allopolyploid Species of Saccharum (Poaceae ‐ Andropogoneae) from South America, with Notes on its Cytogenetics
title_sort A New Allopolyploid Species of Saccharum (Poaceae ‐ Andropogoneae) from South America, with Notes on its Cytogenetics
dc.creator.none.fl_str_mv Welker, Cassiano A. D.
Souza Chies, Tatiana T.
Peichoto, Myriam Carolina
Oliveira, Reyjane P.
Carvalho, Luana C.
Muccillo, Victória B. S.
Kellogg, Elizabeth Anne
Kaltchuk-Santos, Eliane
author Welker, Cassiano A. D.
author_facet Welker, Cassiano A. D.
Souza Chies, Tatiana T.
Peichoto, Myriam Carolina
Oliveira, Reyjane P.
Carvalho, Luana C.
Muccillo, Victória B. S.
Kellogg, Elizabeth Anne
Kaltchuk-Santos, Eliane
author_role author
author2 Souza Chies, Tatiana T.
Peichoto, Myriam Carolina
Oliveira, Reyjane P.
Carvalho, Luana C.
Muccillo, Victória B. S.
Kellogg, Elizabeth Anne
Kaltchuk-Santos, Eliane
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Chromosome Number
Hibridization
Polyploidy
Sugarcane
topic Chromosome Number
Hibridization
Polyploidy
Sugarcane
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Allopolyploidy is a major mode of speciation in flowering plants and particularly in the grass tribe Andropogoneae, which includessugarcane (Saccharum officinarum) and relatives. A new species of Saccharum from South America (S. intermedium) is described here, supported bymorphological, molecular and cytogenetic evidence. Previous molecular analyses indicated an allopolyploid origin of the new species throughinterspecific hybridization between S. angustifolium and S. villosum. The new taxon has intermediate morphology between the two parental species.Cytogenetic analyses of the three species were performed, including chromosome counts, meiotic regularity, and pollen viability and morphology.The new taxon is hexaploid (2n = 60), while the parental species are triploids (2n = 30), confirming the ploidy level suggested by the number ofparalogues in phylogenetic trees based on low-copy nuclear genes. This represents the first chromosome count for S. intermedium and a new cytotypefor S. villosum. Although both parental species are triploids, they surprisingly exhibited regular meiosis and high pollen viability, indicating they aremale-fertile, as is the hexaploid new species. Data on geographic distribution and phenology is also presented, aswell as a key for the South Americanspecies of Saccharum.
Fil: Welker, Cassiano A. D.. Universidade Federal de Uberlandia; Brasil
Fil: Souza Chies, Tatiana T.. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Peichoto, Myriam Carolina. 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: Oliveira, Reyjane P.. Universidade Estadual de Feira de Santana; Brasil
Fil: Carvalho, Luana C.. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Muccillo, Victória B. S.. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Kellogg, Elizabeth Anne. Donald Danforth Plant Science Center; Estados Unidos
Fil: Kaltchuk-Santos, Eliane. Universidade Federal do Rio Grande do Sul; Brasil
description Allopolyploidy is a major mode of speciation in flowering plants and particularly in the grass tribe Andropogoneae, which includessugarcane (Saccharum officinarum) and relatives. A new species of Saccharum from South America (S. intermedium) is described here, supported bymorphological, molecular and cytogenetic evidence. Previous molecular analyses indicated an allopolyploid origin of the new species throughinterspecific hybridization between S. angustifolium and S. villosum. The new taxon has intermediate morphology between the two parental species.Cytogenetic analyses of the three species were performed, including chromosome counts, meiotic regularity, and pollen viability and morphology.The new taxon is hexaploid (2n = 60), while the parental species are triploids (2n = 30), confirming the ploidy level suggested by the number ofparalogues in phylogenetic trees based on low-copy nuclear genes. This represents the first chromosome count for S. intermedium and a new cytotypefor S. villosum. Although both parental species are triploids, they surprisingly exhibited regular meiosis and high pollen viability, indicating they aremale-fertile, as is the hexaploid new species. Data on geographic distribution and phenology is also presented, aswell as a key for the South Americanspecies of Saccharum.
publishDate 2017
dc.date.none.fl_str_mv 2017-09
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/11336/46838
Welker, Cassiano A. D.; Souza Chies, Tatiana T.; Peichoto, Myriam Carolina; Oliveira, Reyjane P.; Carvalho, Luana C.; et al.; A New Allopolyploid Species of Saccharum (Poaceae ‐ Andropogoneae) from South America, with Notes on its Cytogenetics; American Society of Plant Taxonomists; Systematic Botany; 42; 3; 9-2017; 507-515
0363-6445
CONICET Digital
CONICET
url http://hdl.handle.net/11336/46838
identifier_str_mv Welker, Cassiano A. D.; Souza Chies, Tatiana T.; Peichoto, Myriam Carolina; Oliveira, Reyjane P.; Carvalho, Luana C.; et al.; A New Allopolyploid Species of Saccharum (Poaceae ‐ Andropogoneae) from South America, with Notes on its Cytogenetics; American Society of Plant Taxonomists; Systematic Botany; 42; 3; 9-2017; 507-515
0363-6445
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.ingentaconnect.com/content/10.1600/036364417X696005
info:eu-repo/semantics/altIdentifier/doi/10.1600/036364417X696005
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
dc.publisher.none.fl_str_mv American Society of Plant Taxonomists
publisher.none.fl_str_mv American Society of Plant Taxonomists
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
_version_ 1842980098652766208
score 13.004268

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