Putative sugarcane FT/TFL1 genes delay flowering time and alter reproductive architecture in Arabidopsis
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/12319 |
Resumo: | Agriculturally important grasses such as rice, maize, and sugarcane are evolutionarily distant from Arabidopsis, yet some components of the floral induction process are highly conserved. Flowering in sugarcane is an important factor that negatively affects cane yield and reduces sugar/ethanol production from this important perennial bioenergy crop. Comparative studies have facilitated the identification and characterization of putative orthologs of key flowering time genes in sugarcane, a complex polyploid plant whose genome has yet to be sequenced completely. Using this approach we identified phosphatidylethanolamine-binding protein (PEBP) gene family members in sugarcane that are similar to the archetypical FT and TFL1 genes of Arabidopsis that play an essential role in controlling the transition from vegetative to reproductive growth. Expression analysis of ScTFL1, which falls into the TFL1-clade of floral repressors, showed transcripts in developing leaves surrounding the shoot apex but not at the apex itself. ScFT1 was detected in immature leaves and apical regions of vegetatively growing plants and, after the floral transition, expression also occurred in mature leaves. Ectopic over-expression of ScTFL1 in Arabidopsis caused delayed flowering in Arabidopsis, as might be expected for a gene related to TFL1. In addition, lines with the latest flowering phenotype exhibited aerial rosette formation. Unexpectedly, over-expression of ScFT1, which has greatest similarity to the florigen-encoding FT, also caused a delay in flowering. This preliminary analysis of divergent sugarcane FT and TFL1 gene family members from Saccharum spp. suggests that their expression patterns and roles in the floral transition has diverged from the predicted role of similar PEBP family members. |
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Putative sugarcane FT/TFL1 genes delay flowering time and alter reproductive architecture in ArabidopsisSaccharum spp.Bioenergy cropFloral inductionFT-like genesFlorigen orthologsPEBP familyAgriculturally important grasses such as rice, maize, and sugarcane are evolutionarily distant from Arabidopsis, yet some components of the floral induction process are highly conserved. Flowering in sugarcane is an important factor that negatively affects cane yield and reduces sugar/ethanol production from this important perennial bioenergy crop. Comparative studies have facilitated the identification and characterization of putative orthologs of key flowering time genes in sugarcane, a complex polyploid plant whose genome has yet to be sequenced completely. Using this approach we identified phosphatidylethanolamine-binding protein (PEBP) gene family members in sugarcane that are similar to the archetypical FT and TFL1 genes of Arabidopsis that play an essential role in controlling the transition from vegetative to reproductive growth. Expression analysis of ScTFL1, which falls into the TFL1-clade of floral repressors, showed transcripts in developing leaves surrounding the shoot apex but not at the apex itself. ScFT1 was detected in immature leaves and apical regions of vegetatively growing plants and, after the floral transition, expression also occurred in mature leaves. Ectopic over-expression of ScTFL1 in Arabidopsis caused delayed flowering in Arabidopsis, as might be expected for a gene related to TFL1. In addition, lines with the latest flowering phenotype exhibited aerial rosette formation. Unexpectedly, over-expression of ScFT1, which has greatest similarity to the florigen-encoding FT, also caused a delay in flowering. This preliminary analysis of divergent sugarcane FT and TFL1 gene family members from Saccharum spp. suggests that their expression patterns and roles in the floral transition has diverged from the predicted role of similar PEBP family members.Frontiers2017-02-20T13:08:04Z2017-02-20T13:08:04Z2014-05info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfCOELHO, C. P. et al. Putative sugarcane FT/TFL1 genes delay flowering time and alter reproductive architecture in Arabidopsis. Frontiers in Plant Science, [S. l.], v. 5, p. 1-12, May 2014.http://repositorio.ufla.br/jspui/handle/1/12319Frontiers in Plant Sciencereponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLACoelho, Carla P.Mark A. A., MinowChalfun-Júnior, AntonioColasanti, Josephinfo:eu-repo/semantics/openAccesspor2017-02-20T13:08:04Zoai:localhost:1/12319Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2017-02-20T13:08:04Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Putative sugarcane FT/TFL1 genes delay flowering time and alter reproductive architecture in Arabidopsis |
title |
Putative sugarcane FT/TFL1 genes delay flowering time and alter reproductive architecture in Arabidopsis |
spellingShingle |
Putative sugarcane FT/TFL1 genes delay flowering time and alter reproductive architecture in Arabidopsis Coelho, Carla P. Saccharum spp. Bioenergy crop Floral induction FT-like genes Florigen orthologs PEBP family |
title_short |
Putative sugarcane FT/TFL1 genes delay flowering time and alter reproductive architecture in Arabidopsis |
title_full |
Putative sugarcane FT/TFL1 genes delay flowering time and alter reproductive architecture in Arabidopsis |
title_fullStr |
Putative sugarcane FT/TFL1 genes delay flowering time and alter reproductive architecture in Arabidopsis |
title_full_unstemmed |
Putative sugarcane FT/TFL1 genes delay flowering time and alter reproductive architecture in Arabidopsis |
title_sort |
Putative sugarcane FT/TFL1 genes delay flowering time and alter reproductive architecture in Arabidopsis |
author |
Coelho, Carla P. |
author_facet |
Coelho, Carla P. Mark A. A., Minow Chalfun-Júnior, Antonio Colasanti, Joseph |
author_role |
author |
author2 |
Mark A. A., Minow Chalfun-Júnior, Antonio Colasanti, Joseph |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Coelho, Carla P. Mark A. A., Minow Chalfun-Júnior, Antonio Colasanti, Joseph |
dc.subject.por.fl_str_mv |
Saccharum spp. Bioenergy crop Floral induction FT-like genes Florigen orthologs PEBP family |
topic |
Saccharum spp. Bioenergy crop Floral induction FT-like genes Florigen orthologs PEBP family |
description |
Agriculturally important grasses such as rice, maize, and sugarcane are evolutionarily distant from Arabidopsis, yet some components of the floral induction process are highly conserved. Flowering in sugarcane is an important factor that negatively affects cane yield and reduces sugar/ethanol production from this important perennial bioenergy crop. Comparative studies have facilitated the identification and characterization of putative orthologs of key flowering time genes in sugarcane, a complex polyploid plant whose genome has yet to be sequenced completely. Using this approach we identified phosphatidylethanolamine-binding protein (PEBP) gene family members in sugarcane that are similar to the archetypical FT and TFL1 genes of Arabidopsis that play an essential role in controlling the transition from vegetative to reproductive growth. Expression analysis of ScTFL1, which falls into the TFL1-clade of floral repressors, showed transcripts in developing leaves surrounding the shoot apex but not at the apex itself. ScFT1 was detected in immature leaves and apical regions of vegetatively growing plants and, after the floral transition, expression also occurred in mature leaves. Ectopic over-expression of ScTFL1 in Arabidopsis caused delayed flowering in Arabidopsis, as might be expected for a gene related to TFL1. In addition, lines with the latest flowering phenotype exhibited aerial rosette formation. Unexpectedly, over-expression of ScFT1, which has greatest similarity to the florigen-encoding FT, also caused a delay in flowering. This preliminary analysis of divergent sugarcane FT and TFL1 gene family members from Saccharum spp. suggests that their expression patterns and roles in the floral transition has diverged from the predicted role of similar PEBP family members. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-05 2017-02-20T13:08:04Z 2017-02-20T13:08:04Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
COELHO, C. P. et al. Putative sugarcane FT/TFL1 genes delay flowering time and alter reproductive architecture in Arabidopsis. Frontiers in Plant Science, [S. l.], v. 5, p. 1-12, May 2014. http://repositorio.ufla.br/jspui/handle/1/12319 |
identifier_str_mv |
COELHO, C. P. et al. Putative sugarcane FT/TFL1 genes delay flowering time and alter reproductive architecture in Arabidopsis. Frontiers in Plant Science, [S. l.], v. 5, p. 1-12, May 2014. |
url |
http://repositorio.ufla.br/jspui/handle/1/12319 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Frontiers |
publisher.none.fl_str_mv |
Frontiers |
dc.source.none.fl_str_mv |
Frontiers in Plant Science reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
_version_ |
1807835168352763904 |