The role of microRNA156-regulated SQUAMOSA PROMOTER BINDING PROTEINS in the control of shoot branching in tomato

Detalhes bibliográficos
Autor(a) principal: Brito, Diêgo Armando Pinheiro
Data de Publicação: 2020
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Biblioteca Digital de Teses e Dissertações da USP
Texto Completo: https://www.teses.usp.br/teses/disponiveis/11/11144/tde-27112020-161945/
Resumo: The formation of branches is one of the key determinants of shoot architecture, determining how plants grow and having direct impacts in their productivity. Lateral branches originate from axillary meristems, formed in the axils of each leaf primordia. Once established, axillary meristems give rise to a few lead primordia, giving rise to an axillary bud. Depending on the plants developmental program and on environmental conditions, axillary buds may remain dormant or outgrow, forming a new lateral branch. Several transcription factors, phytohormones, metabolites and environmental signals have been associated with the formation of axillary meristems or with the regulation of axillary bud activity. Members of the SQUAMOSA PROMOTER BINDING PROTEIN-LIKE (SPLs/SBPs) family of transcription factors regulated by the microRNA156 (miR156) have emerged as potential regulators of shoot architecture, regulating both the formation of axillary meristems and the activity of axillary buds. In this work, we: (1) review recent literature on the effects of the main endogenous and environmental signals controlling the formation of axillary meristems and activity of axillary buds and; (2) investigated the role of miR156-targeted SlSBPs in the control of shoot branching in tomato, demonstrating an interaction between the miR156/SBP module and auxin and cytokinin signalling, besides a possible interaction with other transcription factors controlling the activity of axillary buds.
id USP_4d1da6cd2488bc825c2238951f5d37ec
oai_identifier_str oai:teses.usp.br:tde-27112020-161945
network_acronym_str USP
network_name_str Biblioteca Digital de Teses e Dissertações da USP
repository_id_str 2721
spelling The role of microRNA156-regulated SQUAMOSA PROMOTER BINDING PROTEINS in the control of shoot branching in tomatoO papel das SQUAMOSA PROMOTER BINDING PROTEINS reguladas pelo microRNA156 no controle da ramificação lateral em tomateiroAuxinAuxinaAxillary budsAxillary meristemsCitocininaCytokininGemas axilaresMeristemas axilaresMicroRNA156MicroRNA156Ramificação lateralShoot branchingSPLs/SBPsSPLs/SBPsTomateiroTomatoThe formation of branches is one of the key determinants of shoot architecture, determining how plants grow and having direct impacts in their productivity. Lateral branches originate from axillary meristems, formed in the axils of each leaf primordia. Once established, axillary meristems give rise to a few lead primordia, giving rise to an axillary bud. Depending on the plants developmental program and on environmental conditions, axillary buds may remain dormant or outgrow, forming a new lateral branch. Several transcription factors, phytohormones, metabolites and environmental signals have been associated with the formation of axillary meristems or with the regulation of axillary bud activity. Members of the SQUAMOSA PROMOTER BINDING PROTEIN-LIKE (SPLs/SBPs) family of transcription factors regulated by the microRNA156 (miR156) have emerged as potential regulators of shoot architecture, regulating both the formation of axillary meristems and the activity of axillary buds. In this work, we: (1) review recent literature on the effects of the main endogenous and environmental signals controlling the formation of axillary meristems and activity of axillary buds and; (2) investigated the role of miR156-targeted SlSBPs in the control of shoot branching in tomato, demonstrating an interaction between the miR156/SBP module and auxin and cytokinin signalling, besides a possible interaction with other transcription factors controlling the activity of axillary buds.A formação de ramos laterais é um dos principais aspectos da arquitetura vegetativa, determinando a forma de crescimento da planta e tendo efeitos diretos sobre a produtividade. Ramos laterais são originados a partir de meristemas axilares, formados nas axilas de cada primórdio foliar. Uma vez formados, meristemas axilares dão origem a gemas axilares, compostas por pequenas folhas não expandidas. Dependendo do programa de desenvolvimento da planta e de condições ambientais as gemas podem permanecer dormentes ou brotarem, dando origem a um novo ramo. Diversos fatores de transcrição, fitohormônios, metabólitos e sinais ambientais já foram descritos como sendo importantes para a formação de meristemas axilares ou de regulação da atividade das gemas axilares. Dentre estes, os fatores de transcrição da família SQUAMOSA PROMOTER BINDING PROTEIN-LIKE (SPLs/SBPs) regulados pelo microRNA156 (miR156) emergiram como potenciais reguladores da arquitetura vegetativa, regulando desde a formação do meristema axilar quanto à atividade das gemas. Dessa forma, neste trabalho, nós: (1) revisamos a literatura disponível sobre os principais sinais endógenos e ambientais controlando a formação de meristemas axilares e atividades das gemas axilares e; (2) estudamos o papel das SlSBPs reguladas pelo miR156 no controle da ramificação lateral em tomateiro, demonstrando uma interação entre o modulo miR156/SBP e a sinalização dos fitohormônios auxina e citocinina, além de uma possível interação com outros fatores de transcrição envolvidos na regulação da atividade de gemas axilares.Biblioteca Digitais de Teses e Dissertações da USPNogueira, Fabio Tebaldi SilveiraBrito, Diêgo Armando Pinheiro2020-10-22info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttps://www.teses.usp.br/teses/disponiveis/11/11144/tde-27112020-161945/reponame:Biblioteca Digital de Teses e Dissertações da USPinstname:Universidade de São Paulo (USP)instacron:USPLiberar o conteúdo para acesso público.info:eu-repo/semantics/openAccesseng2020-12-03T17:12:01Zoai:teses.usp.br:tde-27112020-161945Biblioteca Digital de Teses e Dissertaçõeshttp://www.teses.usp.br/PUBhttp://www.teses.usp.br/cgi-bin/mtd2br.plvirginia@if.usp.br|| atendimento@aguia.usp.br||virginia@if.usp.bropendoar:27212020-12-03T17:12:01Biblioteca Digital de Teses e Dissertações da USP - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv The role of microRNA156-regulated SQUAMOSA PROMOTER BINDING PROTEINS in the control of shoot branching in tomato
O papel das SQUAMOSA PROMOTER BINDING PROTEINS reguladas pelo microRNA156 no controle da ramificação lateral em tomateiro
title The role of microRNA156-regulated SQUAMOSA PROMOTER BINDING PROTEINS in the control of shoot branching in tomato
spellingShingle The role of microRNA156-regulated SQUAMOSA PROMOTER BINDING PROTEINS in the control of shoot branching in tomato
Brito, Diêgo Armando Pinheiro
Auxin
Auxina
Axillary buds
Axillary meristems
Citocinina
Cytokinin
Gemas axilares
Meristemas axilares
MicroRNA156
MicroRNA156
Ramificação lateral
Shoot branching
SPLs/SBPs
SPLs/SBPs
Tomateiro
Tomato
title_short The role of microRNA156-regulated SQUAMOSA PROMOTER BINDING PROTEINS in the control of shoot branching in tomato
title_full The role of microRNA156-regulated SQUAMOSA PROMOTER BINDING PROTEINS in the control of shoot branching in tomato
title_fullStr The role of microRNA156-regulated SQUAMOSA PROMOTER BINDING PROTEINS in the control of shoot branching in tomato
title_full_unstemmed The role of microRNA156-regulated SQUAMOSA PROMOTER BINDING PROTEINS in the control of shoot branching in tomato
title_sort The role of microRNA156-regulated SQUAMOSA PROMOTER BINDING PROTEINS in the control of shoot branching in tomato
author Brito, Diêgo Armando Pinheiro
author_facet Brito, Diêgo Armando Pinheiro
author_role author
dc.contributor.none.fl_str_mv Nogueira, Fabio Tebaldi Silveira
dc.contributor.author.fl_str_mv Brito, Diêgo Armando Pinheiro
dc.subject.por.fl_str_mv Auxin
Auxina
Axillary buds
Axillary meristems
Citocinina
Cytokinin
Gemas axilares
Meristemas axilares
MicroRNA156
MicroRNA156
Ramificação lateral
Shoot branching
SPLs/SBPs
SPLs/SBPs
Tomateiro
Tomato
topic Auxin
Auxina
Axillary buds
Axillary meristems
Citocinina
Cytokinin
Gemas axilares
Meristemas axilares
MicroRNA156
MicroRNA156
Ramificação lateral
Shoot branching
SPLs/SBPs
SPLs/SBPs
Tomateiro
Tomato
description The formation of branches is one of the key determinants of shoot architecture, determining how plants grow and having direct impacts in their productivity. Lateral branches originate from axillary meristems, formed in the axils of each leaf primordia. Once established, axillary meristems give rise to a few lead primordia, giving rise to an axillary bud. Depending on the plants developmental program and on environmental conditions, axillary buds may remain dormant or outgrow, forming a new lateral branch. Several transcription factors, phytohormones, metabolites and environmental signals have been associated with the formation of axillary meristems or with the regulation of axillary bud activity. Members of the SQUAMOSA PROMOTER BINDING PROTEIN-LIKE (SPLs/SBPs) family of transcription factors regulated by the microRNA156 (miR156) have emerged as potential regulators of shoot architecture, regulating both the formation of axillary meristems and the activity of axillary buds. In this work, we: (1) review recent literature on the effects of the main endogenous and environmental signals controlling the formation of axillary meristems and activity of axillary buds and; (2) investigated the role of miR156-targeted SlSBPs in the control of shoot branching in tomato, demonstrating an interaction between the miR156/SBP module and auxin and cytokinin signalling, besides a possible interaction with other transcription factors controlling the activity of axillary buds.
publishDate 2020
dc.date.none.fl_str_mv 2020-10-22
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://www.teses.usp.br/teses/disponiveis/11/11144/tde-27112020-161945/
url https://www.teses.usp.br/teses/disponiveis/11/11144/tde-27112020-161945/
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv
dc.rights.driver.fl_str_mv Liberar o conteúdo para acesso público.
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Liberar o conteúdo para acesso público.
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.coverage.none.fl_str_mv
dc.publisher.none.fl_str_mv Biblioteca Digitais de Teses e Dissertações da USP
publisher.none.fl_str_mv Biblioteca Digitais de Teses e Dissertações da USP
dc.source.none.fl_str_mv
reponame:Biblioteca Digital de Teses e Dissertações da USP
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Biblioteca Digital de Teses e Dissertações da USP
collection Biblioteca Digital de Teses e Dissertações da USP
repository.name.fl_str_mv Biblioteca Digital de Teses e Dissertações da USP - Universidade de São Paulo (USP)
repository.mail.fl_str_mv virginia@if.usp.br|| atendimento@aguia.usp.br||virginia@if.usp.br
_version_ 1815257421905395712

Registros relacionados