New wild diploids in Paspalum notatum Flügge (Poaceae): potential accessions for use in breeding.

Detalhes bibliográficos
Autor(a) principal: Fachinetto,Juliana Maria
Data de Publicação: 2018
Outros Autores: Dall’Agnol,Miguel, Schifino-Wittmann,Maria Teresa, Simioni,Carine, Ávila,Mariana Rockenbach
Tipo de documento: Relatório
Idioma: eng
Título da fonte: Crop Breeding and Applied Biotechnology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332018000400432
Resumo: Abstract Paspalum notatum is a polymorphic species with two accepted varieties, according to the ploidy level. The ploidy level is closely related to the reproductive mode of this species. Usually, diploid cytotypes have sexual reproduction, and tetraploid cytotypes have an apomictic reproduction. Apomixis limits genetic recombination, hindering the development of new cultivars. The identification of sexual plants represents many possibilities in breeding programs. This study aimed to analyze the chromosome number in P. notatum accessions under agronomic evaluation. Ploidy level was determined in 25 accessions. Two ploidy levels were detected, resulting in 21 tetraploid and four diploid accessions. The four diploid accessions originate from Argentina and Uruguay, in a region close to the origin of Pensacola, which is a diploid sexual cultivar of P. notatum. These new diploid accessions may be useful in the development of breeding programs of Paspalum species.
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spelling New wild diploids in Paspalum notatum Flügge (Poaceae): potential accessions for use in breeding.Cytogeneticsgenetic breedingploidy levelAbstract Paspalum notatum is a polymorphic species with two accepted varieties, according to the ploidy level. The ploidy level is closely related to the reproductive mode of this species. Usually, diploid cytotypes have sexual reproduction, and tetraploid cytotypes have an apomictic reproduction. Apomixis limits genetic recombination, hindering the development of new cultivars. The identification of sexual plants represents many possibilities in breeding programs. This study aimed to analyze the chromosome number in P. notatum accessions under agronomic evaluation. Ploidy level was determined in 25 accessions. Two ploidy levels were detected, resulting in 21 tetraploid and four diploid accessions. The four diploid accessions originate from Argentina and Uruguay, in a region close to the origin of Pensacola, which is a diploid sexual cultivar of P. notatum. These new diploid accessions may be useful in the development of breeding programs of Paspalum species.Crop Breeding and Applied Biotechnology2018-12-01info:eu-repo/semantics/reportinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332018000400432Crop Breeding and Applied Biotechnology v.18 n.4 2018reponame:Crop Breeding and Applied Biotechnologyinstname:Sociedade Brasileira de Melhoramento de Plantasinstacron:CBAB10.1590/1984-70332018v18n4n63info:eu-repo/semantics/openAccessFachinetto,Juliana MariaDall’Agnol,MiguelSchifino-Wittmann,Maria TeresaSimioni,CarineÁvila,Mariana Rockenbacheng2018-12-03T00:00:00Zoai:scielo:S1984-70332018000400432Revistahttps://cbab.sbmp.org.br/#ONGhttps://old.scielo.br/oai/scielo-oai.phpcbabjournal@gmail.com||cbab@ufv.br1984-70331518-7853opendoar:2018-12-03T00:00Crop Breeding and Applied Biotechnology - Sociedade Brasileira de Melhoramento de Plantasfalse
dc.title.none.fl_str_mv New wild diploids in Paspalum notatum Flügge (Poaceae): potential accessions for use in breeding.
title New wild diploids in Paspalum notatum Flügge (Poaceae): potential accessions for use in breeding.
spellingShingle New wild diploids in Paspalum notatum Flügge (Poaceae): potential accessions for use in breeding.
Fachinetto,Juliana Maria
Cytogenetics
genetic breeding
ploidy level
title_short New wild diploids in Paspalum notatum Flügge (Poaceae): potential accessions for use in breeding.
title_full New wild diploids in Paspalum notatum Flügge (Poaceae): potential accessions for use in breeding.
title_fullStr New wild diploids in Paspalum notatum Flügge (Poaceae): potential accessions for use in breeding.
title_full_unstemmed New wild diploids in Paspalum notatum Flügge (Poaceae): potential accessions for use in breeding.
title_sort New wild diploids in Paspalum notatum Flügge (Poaceae): potential accessions for use in breeding.
author Fachinetto,Juliana Maria
author_facet Fachinetto,Juliana Maria
Dall’Agnol,Miguel
Schifino-Wittmann,Maria Teresa
Simioni,Carine
Ávila,Mariana Rockenbach
author_role author
author2 Dall’Agnol,Miguel
Schifino-Wittmann,Maria Teresa
Simioni,Carine
Ávila,Mariana Rockenbach
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Fachinetto,Juliana Maria
Dall’Agnol,Miguel
Schifino-Wittmann,Maria Teresa
Simioni,Carine
Ávila,Mariana Rockenbach
dc.subject.por.fl_str_mv Cytogenetics
genetic breeding
ploidy level
topic Cytogenetics
genetic breeding
ploidy level
description Abstract Paspalum notatum is a polymorphic species with two accepted varieties, according to the ploidy level. The ploidy level is closely related to the reproductive mode of this species. Usually, diploid cytotypes have sexual reproduction, and tetraploid cytotypes have an apomictic reproduction. Apomixis limits genetic recombination, hindering the development of new cultivars. The identification of sexual plants represents many possibilities in breeding programs. This study aimed to analyze the chromosome number in P. notatum accessions under agronomic evaluation. Ploidy level was determined in 25 accessions. Two ploidy levels were detected, resulting in 21 tetraploid and four diploid accessions. The four diploid accessions originate from Argentina and Uruguay, in a region close to the origin of Pensacola, which is a diploid sexual cultivar of P. notatum. These new diploid accessions may be useful in the development of breeding programs of Paspalum species.
publishDate 2018
dc.date.none.fl_str_mv 2018-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/report
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format report
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332018000400432
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332018000400432
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1984-70332018v18n4n63
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Crop Breeding and Applied Biotechnology
publisher.none.fl_str_mv Crop Breeding and Applied Biotechnology
dc.source.none.fl_str_mv Crop Breeding and Applied Biotechnology v.18 n.4 2018
reponame:Crop Breeding and Applied Biotechnology
instname:Sociedade Brasileira de Melhoramento de Plantas
instacron:CBAB
instname_str Sociedade Brasileira de Melhoramento de Plantas
instacron_str CBAB
institution CBAB
reponame_str Crop Breeding and Applied Biotechnology
collection Crop Breeding and Applied Biotechnology
repository.name.fl_str_mv Crop Breeding and Applied Biotechnology - Sociedade Brasileira de Melhoramento de Plantas
repository.mail.fl_str_mv cbabjournal@gmail.com||cbab@ufv.br
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