New chromosome numbers in Pilocarpus Vahl (Rutaceae)
Autor(a) principal: | |
---|---|
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. |
id |
SBB-1_04878f45e006d93d7c3bd01955b18b7a |
---|---|
oai_identifier_str |
oai:scielo:S0102-33062000000100002 |
network_acronym_str |
SBB-1 |
network_name_str |
Acta Botanica Brasilica |
repository_id_str |
|
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 |
_version_ |
1752126656360742912 |