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![](/consulta/web/img/deny.png) | Acesso ao texto completo restrito à biblioteca da Embrapa Semiárido. Para informações adicionais entre em contato com cpatsa.biblioteca@embrapa.br. |
Registro Completo |
Biblioteca(s): |
Embrapa Semiárido; Embrapa Uva e Vinho. |
Data corrente: |
29/10/2018 |
Data da última atualização: |
08/11/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
FALAVGNA, V. da S.; PORTO, D. D.; MIOTTO, Y. E.; SANTOS, H. P. dos; OLIVEIRA, P. R. D. de; PINHEIRO, M M.; GIANCARLO PASQUALI, G.; REVERS, L. F. |
Afiliação: |
VÍTOR DA SILVEIRA FALAVIGNA, Universidade Federal do Rio Grande do Sul; DIOGO DENARDI PORTO, CPATSA; YOHANNA EVELYN MIOTTO; HENRIQUE PESSOA DOS SANTOS, CNPUV; PAULO RICARDO DIAS DE OLIVEIRA, CNPUV; MÁRCIA MARGIS-PINHEIRO, Universidade Federal do Rio Grande do Sul; GIANCARLO PASQUALI, Universidade Federal do Rio Grande do Sul; LUIS FERNANDO REVERS, CNPUV. |
Título: |
Evolutionary diversification of galactinol synthases in Rosaceae: adaptive roles of galactinol and raffinose during apple bud dormancy. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Journal of Experimental Botany, v. 69, n. 5, p. 1247- 1259, 2018. |
DOI: |
10.1093/jxb/erx451 |
Idioma: |
Inglês |
Conteúdo: |
Galactinol synthase (GolS) is a key enzyme in the biosynthetic pathway of raffinose family oligosaccharides (RFOs), which play roles in carbon storage, signal transduction, and osmoprotection. The present work assessed the evolutionary history of GolS genes across the Rosaceae using several bioinformatic tools. Apple (Malus × domestica) GolS genes were transcriptionally characterized during bud dormancy, in parallel with galactinol and raffinose measurements. Additionally, MdGolS2, a candidate to regulate seasonal galactinol and RFO content during apple bud ormancy, was functionally characterized in Arabidopsis. Evolutionary analyses revealed that whole genome duplications have driven GolS gene evolution and diversification in Rosaceae speciation. The strong purifying selection identified in duplicated GolS genes suggests that differential gene expression might define gene function better than protein structure. Interestingly, MdGolS2 was differentially expressed during bud dormancy, concomitantly with the highest galactinol and raffinose levels. One of the intrinsic adaptive features of bud dormancy is limited availability of free water; therefore, we generated transgenic Arabidopsis plants expressing MdGolS2. They showed higher galactinol and raffinose contents and increased tolerance to water deficit. Our results suggest that MdGolS2 is the major GolS responsible for RFO accumulation during apple dormancy, and these carbohydrates help to protect dormant buds against limited water supply. Keywords: Apple, bud dormancy, galactinol synthase, Malus × domestica, raffinose family oligosaccharides, tolerance to water deficit, transgenic expression, whole-genome duplication. MenosGalactinol synthase (GolS) is a key enzyme in the biosynthetic pathway of raffinose family oligosaccharides (RFOs), which play roles in carbon storage, signal transduction, and osmoprotection. The present work assessed the evolutionary history of GolS genes across the Rosaceae using several bioinformatic tools. Apple (Malus × domestica) GolS genes were transcriptionally characterized during bud dormancy, in parallel with galactinol and raffinose measurements. Additionally, MdGolS2, a candidate to regulate seasonal galactinol and RFO content during apple bud ormancy, was functionally characterized in Arabidopsis. Evolutionary analyses revealed that whole genome duplications have driven GolS gene evolution and diversification in Rosaceae speciation. The strong purifying selection identified in duplicated GolS genes suggests that differential gene expression might define gene function better than protein structure. Interestingly, MdGolS2 was differentially expressed during bud dormancy, concomitantly with the highest galactinol and raffinose levels. One of the intrinsic adaptive features of bud dormancy is limited availability of free water; therefore, we generated transgenic Arabidopsis plants expressing MdGolS2. They showed higher galactinol and raffinose contents and increased tolerance to water deficit. Our results suggest that MdGolS2 is the major GolS responsible for RFO accumulation during apple dormancy, and these carbohydrates help to protect dormant buds against limit... Mostrar Tudo |
Palavras-Chave: |
Dormência das gemas; Galactinol sintase; Oligossacarídeos da família da rafinose. |
Thesagro: |
Dormência; Maçã; Malus Domestica. |
Thesaurus Nal: |
Apples. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 02658naa a2200301 a 4500 001 2098356 005 2018-11-08 008 2018 bl uuuu u00u1 u #d 024 7 $a10.1093/jxb/erx451$2DOI 100 1 $aFALAVGNA, V. da S. 245 $aEvolutionary diversification of galactinol synthases in Rosaceae$badaptive roles of galactinol and raffinose during apple bud dormancy.$h[electronic resource] 260 $c2018 520 $aGalactinol synthase (GolS) is a key enzyme in the biosynthetic pathway of raffinose family oligosaccharides (RFOs), which play roles in carbon storage, signal transduction, and osmoprotection. The present work assessed the evolutionary history of GolS genes across the Rosaceae using several bioinformatic tools. Apple (Malus × domestica) GolS genes were transcriptionally characterized during bud dormancy, in parallel with galactinol and raffinose measurements. Additionally, MdGolS2, a candidate to regulate seasonal galactinol and RFO content during apple bud ormancy, was functionally characterized in Arabidopsis. Evolutionary analyses revealed that whole genome duplications have driven GolS gene evolution and diversification in Rosaceae speciation. The strong purifying selection identified in duplicated GolS genes suggests that differential gene expression might define gene function better than protein structure. Interestingly, MdGolS2 was differentially expressed during bud dormancy, concomitantly with the highest galactinol and raffinose levels. One of the intrinsic adaptive features of bud dormancy is limited availability of free water; therefore, we generated transgenic Arabidopsis plants expressing MdGolS2. They showed higher galactinol and raffinose contents and increased tolerance to water deficit. Our results suggest that MdGolS2 is the major GolS responsible for RFO accumulation during apple dormancy, and these carbohydrates help to protect dormant buds against limited water supply. Keywords: Apple, bud dormancy, galactinol synthase, Malus × domestica, raffinose family oligosaccharides, tolerance to water deficit, transgenic expression, whole-genome duplication. 650 $aApples 650 $aDormência 650 $aMaçã 650 $aMalus Domestica 653 $aDormência das gemas 653 $aGalactinol sintase 653 $aOligossacarídeos da família da rafinose 700 1 $aPORTO, D. D. 700 1 $aMIOTTO, Y. E. 700 1 $aSANTOS, H. P. dos 700 1 $aOLIVEIRA, P. R. D. de 700 1 $aPINHEIRO, M M. 700 1 $aGIANCARLO PASQUALI, G. 700 1 $aREVERS, L. F. 773 $tJournal of Experimental Botany$gv. 69, n. 5, p. 1247- 1259, 2018.
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Embrapa Semiárido (CPATSA) |
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![](/consulta/web/img/deny.png) | Acesso ao texto completo restrito à biblioteca da Embrapa Hortaliças. Para informações adicionais entre em contato com cnph.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Hortaliças. |
Data corrente: |
02/07/2001 |
Data da última atualização: |
02/07/2001 |
Autoria: |
RIBEIRO, C. S. da C.; WAGNER, C. M.; SOUZA, O. B. de; LOPES, D.; REIFSCHNEIDER, F. J. B. |
Afiliação: |
EMBRAPA-CNPH, Brasilia, DF. |
Título: |
Hibridos simples de pimenta doce para paprica com maior rendimento industrial. |
Ano de publicação: |
2001 |
Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE MELHORAMENTO DE PLANTAS, 1., 2001, Goiania. Anais... Goiania: UFGo / Embrapa Arroz e Feijao / Agencia Rural, 2001. |
Páginas: |
nao paginado. |
Descrição Física: |
CD-ROM. |
Idioma: |
Português |
Notas: |
Resumo. |
Palavras-Chave: |
Brasil; Brasilia; Distrito Federal; Processing; Sweet pepper. |
Thesagro: |
Cerrado; Hibrido; Industrialização; Páprica; Pimenta Doce; Processamento; Rendimento. |
Thesaurus NAL: |
Brazil; Capsicum; hybrids; industrialization. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01063naa a2200373 a 4500 001 1769848 005 2001-07-02 008 2001 bl uuuu u00u1 u #d 100 1 $aRIBEIRO, C. S. da C. 245 $aHibridos simples de pimenta doce para paprica com maior rendimento industrial. 260 $c2001 300 $anao paginado. $cCD-ROM. 500 $aResumo. 650 $aBrazil 650 $aCapsicum 650 $ahybrids 650 $aindustrialization 650 $aCerrado 650 $aHibrido 650 $aIndustrialização 650 $aPáprica 650 $aPimenta Doce 650 $aProcessamento 650 $aRendimento 653 $aBrasil 653 $aBrasilia 653 $aDistrito Federal 653 $aProcessing 653 $aSweet pepper 700 1 $aWAGNER, C. M. 700 1 $aSOUZA, O. B. de 700 1 $aLOPES, D. 700 1 $aREIFSCHNEIDER, F. J. B. 773 $tIn: CONGRESSO BRASILEIRO DE MELHORAMENTO DE PLANTAS, 1., 2001, Goiania. Anais... Goiania: UFGo / Embrapa Arroz e Feijao / Agencia Rural, 2001.
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