Meiotic analysis of the germoplasm of three medicinal species from Asteraceae family
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Ciência Rural |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782008000600047 |
Resumo: | Cytogenetic characterization was carried out on 12 accessions from Aster squamatus (Spreng.) Hieron., Pterocaulon polystachyum DC, and Solidago microglossa DC by studying their meiotic behavior and pollen viability. These species are from the Asteraceae family, native to Rio Grande do Sul State, Brazil, and are important for medicinal use. Young inflorescences with four accessions of each species were collected, fixed in ethanol-acetic acid (3:1), and conserved in ethanol 70% until use. The method used was that of squashing the anthers and coloring with acetic orcein 2%. Meiosis was regular in all accessions, presenting chromosomal associations preferentially bivalent, where n=10 was found for Aster squamatus and n=9 for Pterocaulon polystachyum, and Solidago microglossa. The studied accessions presented a Meiotic Index (MI) that varied from 65% to 87% in Aster squamatus, 85% to 92% in Pterocaulon polystachyum, and 64% to 92% in Solidago microglossa, indicating meiotic stability, although irregularities appeared during the cellular division. The pollen viability estimative was high in all studied accessions. These results indicate that the studied species can be included in future studies of genetic breeding. |
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Ciência rural (Online) |
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Meiotic analysis of the germoplasm of three medicinal species from Asteraceae familyAsteraceaemeiotic behaviorpollen viabilityCytogenetic characterization was carried out on 12 accessions from Aster squamatus (Spreng.) Hieron., Pterocaulon polystachyum DC, and Solidago microglossa DC by studying their meiotic behavior and pollen viability. These species are from the Asteraceae family, native to Rio Grande do Sul State, Brazil, and are important for medicinal use. Young inflorescences with four accessions of each species were collected, fixed in ethanol-acetic acid (3:1), and conserved in ethanol 70% until use. The method used was that of squashing the anthers and coloring with acetic orcein 2%. Meiosis was regular in all accessions, presenting chromosomal associations preferentially bivalent, where n=10 was found for Aster squamatus and n=9 for Pterocaulon polystachyum, and Solidago microglossa. The studied accessions presented a Meiotic Index (MI) that varied from 65% to 87% in Aster squamatus, 85% to 92% in Pterocaulon polystachyum, and 64% to 92% in Solidago microglossa, indicating meiotic stability, although irregularities appeared during the cellular division. The pollen viability estimative was high in all studied accessions. These results indicate that the studied species can be included in future studies of genetic breeding.Universidade Federal de Santa Maria2008-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782008000600047Ciência Rural v.38 n.6 2008reponame:Ciência Ruralinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM10.1590/S0103-84782008000600047info:eu-repo/semantics/openAccessOlkoski,DeniseLaughinghouse,Haywood DailSilva,Antonio Carlos Ferreira daTedesco,Solange Bosioeng2008-11-11T00:00:00ZRevista |
dc.title.none.fl_str_mv |
Meiotic analysis of the germoplasm of three medicinal species from Asteraceae family |
title |
Meiotic analysis of the germoplasm of three medicinal species from Asteraceae family |
spellingShingle |
Meiotic analysis of the germoplasm of three medicinal species from Asteraceae family Olkoski,Denise Asteraceae meiotic behavior pollen viability |
title_short |
Meiotic analysis of the germoplasm of three medicinal species from Asteraceae family |
title_full |
Meiotic analysis of the germoplasm of three medicinal species from Asteraceae family |
title_fullStr |
Meiotic analysis of the germoplasm of three medicinal species from Asteraceae family |
title_full_unstemmed |
Meiotic analysis of the germoplasm of three medicinal species from Asteraceae family |
title_sort |
Meiotic analysis of the germoplasm of three medicinal species from Asteraceae family |
author |
Olkoski,Denise |
author_facet |
Olkoski,Denise Laughinghouse,Haywood Dail Silva,Antonio Carlos Ferreira da Tedesco,Solange Bosio |
author_role |
author |
author2 |
Laughinghouse,Haywood Dail Silva,Antonio Carlos Ferreira da Tedesco,Solange Bosio |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Olkoski,Denise Laughinghouse,Haywood Dail Silva,Antonio Carlos Ferreira da Tedesco,Solange Bosio |
dc.subject.por.fl_str_mv |
Asteraceae meiotic behavior pollen viability |
topic |
Asteraceae meiotic behavior pollen viability |
description |
Cytogenetic characterization was carried out on 12 accessions from Aster squamatus (Spreng.) Hieron., Pterocaulon polystachyum DC, and Solidago microglossa DC by studying their meiotic behavior and pollen viability. These species are from the Asteraceae family, native to Rio Grande do Sul State, Brazil, and are important for medicinal use. Young inflorescences with four accessions of each species were collected, fixed in ethanol-acetic acid (3:1), and conserved in ethanol 70% until use. The method used was that of squashing the anthers and coloring with acetic orcein 2%. Meiosis was regular in all accessions, presenting chromosomal associations preferentially bivalent, where n=10 was found for Aster squamatus and n=9 for Pterocaulon polystachyum, and Solidago microglossa. The studied accessions presented a Meiotic Index (MI) that varied from 65% to 87% in Aster squamatus, 85% to 92% in Pterocaulon polystachyum, and 64% to 92% in Solidago microglossa, indicating meiotic stability, although irregularities appeared during the cellular division. The pollen viability estimative was high in all studied accessions. These results indicate that the studied species can be included in future studies of genetic breeding. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-09-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782008000600047 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782008000600047 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-84782008000600047 |
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 |
Universidade Federal de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Ciência Rural v.38 n.6 2008 reponame:Ciência Rural instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Ciência Rural |
collection |
Ciência Rural |
repository.name.fl_str_mv |
|
repository.mail.fl_str_mv |
|
_version_ |
1749140531000115200 |