New chromosome numbers in Pilocarpus Vahl (Rutaceae)

Detalhes bibliográficos
Autor(a) principal: Skorupa,Ladislau A.
Data de Publicação: 2000
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Acta Botanica Brasilica
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062000000100002
Resumo: Chromosome counts for eight species of Pilocarpus Vahl (Rutaceae) a native of Brazil are reported for the first time. Chromosome numbers were determined from mitotic root tip cells of seedlings derived from field collections and grown in the greenhouse. Feulgen staining was used. Initial pre-treatment of root tips was done by using a saturated aqueous solution of alpha-bromonapthalene for two hours at room temperature (20-25ºC). Chromosome numbers of 2n=44 and 2n=88 were determined for the examined taxa. The present results suggest the occurrence of tetraploidy in P. spicatus St.-Hil. and P. carajaensis Skorupa, and a possible basic number x=22 to the genus Pilocarpus.
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spelling New chromosome numbers in Pilocarpus Vahl (Rutaceae)PilocarpusRutaceaeCusparieaecytologypolyploidyChromosome counts for eight species of Pilocarpus Vahl (Rutaceae) a native of Brazil are reported for the first time. Chromosome numbers were determined from mitotic root tip cells of seedlings derived from field collections and grown in the greenhouse. Feulgen staining was used. Initial pre-treatment of root tips was done by using a saturated aqueous solution of alpha-bromonapthalene for two hours at room temperature (20-25ºC). Chromosome numbers of 2n=44 and 2n=88 were determined for the examined taxa. The present results suggest the occurrence of tetraploidy in P. spicatus St.-Hil. and P. carajaensis Skorupa, and a possible basic number x=22 to the genus Pilocarpus.Sociedade Botânica do Brasil2000-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062000000100002Acta Botanica Brasilica v.14 n.1 2000reponame:Acta Botanica Brasilicainstname:Sociedade Botânica do Brasil (SBB)instacron:SBB10.1590/S0102-33062000000100002info:eu-repo/semantics/openAccessSkorupa,Ladislau A.eng2011-05-26T00:00:00Zoai:scielo:S0102-33062000000100002Revistahttps://www.scielo.br/j/abb/ONGhttps://old.scielo.br/oai/scielo-oai.phpacta@botanica.org.br||acta@botanica.org.br|| f.a.r.santos@gmail.com1677-941X0102-3306opendoar:2011-05-26T00:00Acta Botanica Brasilica - Sociedade Botânica do Brasil (SBB)false
dc.title.none.fl_str_mv New chromosome numbers in Pilocarpus Vahl (Rutaceae)
title New chromosome numbers in Pilocarpus Vahl (Rutaceae)
spellingShingle New chromosome numbers in Pilocarpus Vahl (Rutaceae)
Skorupa,Ladislau A.
Pilocarpus
Rutaceae
Cusparieae
cytology
polyploidy
title_short New chromosome numbers in Pilocarpus Vahl (Rutaceae)
title_full New chromosome numbers in Pilocarpus Vahl (Rutaceae)
title_fullStr New chromosome numbers in Pilocarpus Vahl (Rutaceae)
title_full_unstemmed New chromosome numbers in Pilocarpus Vahl (Rutaceae)
title_sort New chromosome numbers in Pilocarpus Vahl (Rutaceae)
author Skorupa,Ladislau A.
author_facet Skorupa,Ladislau A.
author_role author
dc.contributor.author.fl_str_mv Skorupa,Ladislau A.
dc.subject.por.fl_str_mv Pilocarpus
Rutaceae
Cusparieae
cytology
polyploidy
topic Pilocarpus
Rutaceae
Cusparieae
cytology
polyploidy
description Chromosome counts for eight species of Pilocarpus Vahl (Rutaceae) a native of Brazil are reported for the first time. Chromosome numbers were determined from mitotic root tip cells of seedlings derived from field collections and grown in the greenhouse. Feulgen staining was used. Initial pre-treatment of root tips was done by using a saturated aqueous solution of alpha-bromonapthalene for two hours at room temperature (20-25ºC). Chromosome numbers of 2n=44 and 2n=88 were determined for the examined taxa. The present results suggest the occurrence of tetraploidy in P. spicatus St.-Hil. and P. carajaensis Skorupa, and a possible basic number x=22 to the genus Pilocarpus.
publishDate 2000
dc.date.none.fl_str_mv 2000-04-01
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=S0102-33062000000100002
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062000000100002
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0102-33062000000100002
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 Sociedade Botânica do Brasil
publisher.none.fl_str_mv Sociedade Botânica do Brasil
dc.source.none.fl_str_mv Acta Botanica Brasilica v.14 n.1 2000
reponame:Acta Botanica Brasilica
instname:Sociedade Botânica do Brasil (SBB)
instacron:SBB
instname_str Sociedade Botânica do Brasil (SBB)
instacron_str SBB
institution SBB
reponame_str Acta Botanica Brasilica
collection Acta Botanica Brasilica
repository.name.fl_str_mv Acta Botanica Brasilica - Sociedade Botânica do Brasil (SBB)
repository.mail.fl_str_mv acta@botanica.org.br||acta@botanica.org.br|| f.a.r.santos@gmail.com
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