Bradyrhizobium elkanii nod regulon: insights through genomic analysis
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/207149 |
Resumo: | A successful symbiotic relationship between soybean [Glycine max (L.) Merr.] and Bradyrhizobium species requires expression of the bacterial structural nod genes that encode for the synthesis of lipochitooligosaccharide nodulation signal molecules, known as Nod factors (NFs). Bradyrhizobium diazoefficiens USDA 110 possesses a wide nodulation gene repertoire that allows NF assembly and modification, with transcription of the nodYABCSUIJnolMNOnodZ operon depending upon specific activators, i.e., products of regulatory nod genes that are responsive to signaling molecules such as flavonoid compounds exuded by host plant roots. Central to this regulatory circuit of nod gene expression are NodD proteins, members of the LysR-type regulator family. In this study, publicly available Bradyrhizobium elkanii sequenced genomes were compared with the closely related B. diazoefficiens USDA 110 reference genome to determine the similarities between those genomes, especially with regards to the nod operon and nod regulon. Bioinformatics analyses revealed a correlation between functional mechanisms and key elements that play an essential role in the regulation of nod gene expression. These analyses also revealed new genomic features that had not been clearly explored before, some of which were unique for some B. elkanii genomes. |
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Passaglia, Luciane Maria Pereira2020-05-01T04:09:00Z20171415-4757http://hdl.handle.net/10183/207149001103144A successful symbiotic relationship between soybean [Glycine max (L.) Merr.] and Bradyrhizobium species requires expression of the bacterial structural nod genes that encode for the synthesis of lipochitooligosaccharide nodulation signal molecules, known as Nod factors (NFs). Bradyrhizobium diazoefficiens USDA 110 possesses a wide nodulation gene repertoire that allows NF assembly and modification, with transcription of the nodYABCSUIJnolMNOnodZ operon depending upon specific activators, i.e., products of regulatory nod genes that are responsive to signaling molecules such as flavonoid compounds exuded by host plant roots. Central to this regulatory circuit of nod gene expression are NodD proteins, members of the LysR-type regulator family. In this study, publicly available Bradyrhizobium elkanii sequenced genomes were compared with the closely related B. diazoefficiens USDA 110 reference genome to determine the similarities between those genomes, especially with regards to the nod operon and nod regulon. Bioinformatics analyses revealed a correlation between functional mechanisms and key elements that play an essential role in the regulation of nod gene expression. These analyses also revealed new genomic features that had not been clearly explored before, some of which were unique for some B. elkanii genomes.application/pdfengGenetics and molecular biology. Ribeirão Preto. Vol. 40, n. 3 (Sept. 2017), p. 703-716Bradyrhizobium elkaniiGenesGlycine maxBradyrhizobiumNod genesBradyrhizobium elkanii nod regulon: insights through genomic analysisinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001103144.pdf.txt001103144.pdf.txtExtracted Texttext/plain62823http://www.lume.ufrgs.br/bitstream/10183/207149/2/001103144.pdf.txtf67b575cfb0ff469a7e474cf5a29998eMD52ORIGINAL001103144.pdfTexto completo (inglês)application/pdf5611042http://www.lume.ufrgs.br/bitstream/10183/207149/1/001103144.pdf3e94d092b1f4a85c1940bfb4037dc1ffMD5110183/2071492024-05-23 06:42:53.158431oai:www.lume.ufrgs.br:10183/207149Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2024-05-23T09:42:53Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Bradyrhizobium elkanii nod regulon: insights through genomic analysis |
title |
Bradyrhizobium elkanii nod regulon: insights through genomic analysis |
spellingShingle |
Bradyrhizobium elkanii nod regulon: insights through genomic analysis Passaglia, Luciane Maria Pereira Bradyrhizobium elkanii Genes Glycine max Bradyrhizobium Nod genes |
title_short |
Bradyrhizobium elkanii nod regulon: insights through genomic analysis |
title_full |
Bradyrhizobium elkanii nod regulon: insights through genomic analysis |
title_fullStr |
Bradyrhizobium elkanii nod regulon: insights through genomic analysis |
title_full_unstemmed |
Bradyrhizobium elkanii nod regulon: insights through genomic analysis |
title_sort |
Bradyrhizobium elkanii nod regulon: insights through genomic analysis |
author |
Passaglia, Luciane Maria Pereira |
author_facet |
Passaglia, Luciane Maria Pereira |
author_role |
author |
dc.contributor.author.fl_str_mv |
Passaglia, Luciane Maria Pereira |
dc.subject.por.fl_str_mv |
Bradyrhizobium elkanii Genes Glycine max |
topic |
Bradyrhizobium elkanii Genes Glycine max Bradyrhizobium Nod genes |
dc.subject.eng.fl_str_mv |
Bradyrhizobium Nod genes |
description |
A successful symbiotic relationship between soybean [Glycine max (L.) Merr.] and Bradyrhizobium species requires expression of the bacterial structural nod genes that encode for the synthesis of lipochitooligosaccharide nodulation signal molecules, known as Nod factors (NFs). Bradyrhizobium diazoefficiens USDA 110 possesses a wide nodulation gene repertoire that allows NF assembly and modification, with transcription of the nodYABCSUIJnolMNOnodZ operon depending upon specific activators, i.e., products of regulatory nod genes that are responsive to signaling molecules such as flavonoid compounds exuded by host plant roots. Central to this regulatory circuit of nod gene expression are NodD proteins, members of the LysR-type regulator family. In this study, publicly available Bradyrhizobium elkanii sequenced genomes were compared with the closely related B. diazoefficiens USDA 110 reference genome to determine the similarities between those genomes, especially with regards to the nod operon and nod regulon. Bioinformatics analyses revealed a correlation between functional mechanisms and key elements that play an essential role in the regulation of nod gene expression. These analyses also revealed new genomic features that had not been clearly explored before, some of which were unique for some B. elkanii genomes. |
publishDate |
2017 |
dc.date.issued.fl_str_mv |
2017 |
dc.date.accessioned.fl_str_mv |
2020-05-01T04:09:00Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/other |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/207149 |
dc.identifier.issn.pt_BR.fl_str_mv |
1415-4757 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001103144 |
identifier_str_mv |
1415-4757 001103144 |
url |
http://hdl.handle.net/10183/207149 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Genetics and molecular biology. Ribeirão Preto. Vol. 40, n. 3 (Sept. 2017), p. 703-716 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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