Chromosome doubling in Paspalum notatum var. saure (cultivar Pensacola)

Bibliographic Details
Main Author: Weiler,Roberto Luis
Publication Date: 2015
Other Authors: Krycki,Karine Cristina, Guerra,Divanilde, Simioni,Carine, Dall'Agnol,Miguel
Format: Report
Language: eng
Source: Crop Breeding and Applied Biotechnology
Download full: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332015000200106
Summary: Paspalum notatum is one of the most important native grassland species of southern Brazil, and the main forage source for livestock. The native ecotypes are tetraploid and have apomictic reproduction, which prevents the registration and protection of plant varieties. However, the cultivated variety Paspalum notatum var. saurae (cultivar Pensacola) is diploid and sexual. The objective of this study was to artificially produce polyploid cv. Pensacola plants, to be used as female parents in crosses with male tetraploid and apomictic parents. Seedlings and seeds were immersed in colchicine solutions for different periods. A tetraploid chromosome number was confirmed in three plants. The reproduction mode of the resulting polyploid plants will be assessed; if confirmed to be sexual, they can be used in crosses with native apomictic plants to breed new intraspecific hybrids.
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spelling Chromosome doubling in Paspalum notatum var. saure (cultivar Pensacola)Polyploidychromosome duplicationPaspalum notatum Paspalum notatum is one of the most important native grassland species of southern Brazil, and the main forage source for livestock. The native ecotypes are tetraploid and have apomictic reproduction, which prevents the registration and protection of plant varieties. However, the cultivated variety Paspalum notatum var. saurae (cultivar Pensacola) is diploid and sexual. The objective of this study was to artificially produce polyploid cv. Pensacola plants, to be used as female parents in crosses with male tetraploid and apomictic parents. Seedlings and seeds were immersed in colchicine solutions for different periods. A tetraploid chromosome number was confirmed in three plants. The reproduction mode of the resulting polyploid plants will be assessed; if confirmed to be sexual, they can be used in crosses with native apomictic plants to breed new intraspecific hybrids.Crop Breeding and Applied Biotechnology2015-06-01info:eu-repo/semantics/reportinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332015000200106Crop Breeding and Applied Biotechnology v.15 n.2 2015reponame:Crop Breeding and Applied Biotechnologyinstname:Sociedade Brasileira de Melhoramento de Plantasinstacron:CBAB10.1590/1984-70332015v15n2n19info:eu-repo/semantics/openAccessWeiler,Roberto LuisKrycki,Karine CristinaGuerra,DivanildeSimioni,CarineDall'Agnol,Migueleng2015-05-15T00:00:00Zoai:scielo:S1984-70332015000200106Revistahttps://cbab.sbmp.org.br/#ONGhttps://old.scielo.br/oai/scielo-oai.phpcbabjournal@gmail.com||cbab@ufv.br1984-70331518-7853opendoar:2015-05-15T00:00Crop Breeding and Applied Biotechnology - Sociedade Brasileira de Melhoramento de Plantasfalse
dc.title.none.fl_str_mv Chromosome doubling in Paspalum notatum var. saure (cultivar Pensacola)
title Chromosome doubling in Paspalum notatum var. saure (cultivar Pensacola)
spellingShingle Chromosome doubling in Paspalum notatum var. saure (cultivar Pensacola)
Weiler,Roberto Luis
Polyploidy
chromosome duplication
Paspalum notatum
title_short Chromosome doubling in Paspalum notatum var. saure (cultivar Pensacola)
title_full Chromosome doubling in Paspalum notatum var. saure (cultivar Pensacola)
title_fullStr Chromosome doubling in Paspalum notatum var. saure (cultivar Pensacola)
title_full_unstemmed Chromosome doubling in Paspalum notatum var. saure (cultivar Pensacola)
title_sort Chromosome doubling in Paspalum notatum var. saure (cultivar Pensacola)
author Weiler,Roberto Luis
author_facet Weiler,Roberto Luis
Krycki,Karine Cristina
Guerra,Divanilde
Simioni,Carine
Dall'Agnol,Miguel
author_role author
author2 Krycki,Karine Cristina
Guerra,Divanilde
Simioni,Carine
Dall'Agnol,Miguel
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Weiler,Roberto Luis
Krycki,Karine Cristina
Guerra,Divanilde
Simioni,Carine
Dall'Agnol,Miguel
dc.subject.por.fl_str_mv Polyploidy
chromosome duplication
Paspalum notatum
topic Polyploidy
chromosome duplication
Paspalum notatum
description Paspalum notatum is one of the most important native grassland species of southern Brazil, and the main forage source for livestock. The native ecotypes are tetraploid and have apomictic reproduction, which prevents the registration and protection of plant varieties. However, the cultivated variety Paspalum notatum var. saurae (cultivar Pensacola) is diploid and sexual. The objective of this study was to artificially produce polyploid cv. Pensacola plants, to be used as female parents in crosses with male tetraploid and apomictic parents. Seedlings and seeds were immersed in colchicine solutions for different periods. A tetraploid chromosome number was confirmed in three plants. The reproduction mode of the resulting polyploid plants will be assessed; if confirmed to be sexual, they can be used in crosses with native apomictic plants to breed new intraspecific hybrids.
publishDate 2015
dc.date.none.fl_str_mv 2015-06-01
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=S1984-70332015000200106
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332015000200106
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1984-70332015v15n2n19
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.15 n.2 2015
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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