Data/hora: 08/06/2024 04:07:38

Biblioteca(s): | Embrapa Café.
Data corrente: | 25/01/2022
Data da última atualização: | 25/01/2022
Autoria: | SILVA, N.; IVAMOTO-SUZUKI, S. T.; CAMARGO, P. O.; ROSA, R. S.; PEREIRA, L. F. P.; DOMINGUES, D. S.
Afiliação: | NATACHA SILVA, UNESP; SUZANA TIEMI IVAMOTO-SUZUKI, UNESP; PAULA OLIVEIRA CAMARGO, UNESP; RAÍSSA SCALZONI ROSA, UNESP; LUIZ FILIPE PROTASIO PEREIRA, CNPCa; DOUGLAS SILVA DOMINGUES, UNESP.
Título: | Low-copy genes in terpenoid metabolism: the evolution and expression of MVK and DXR genes in angiosperms.
Ano de publicação: | 2020
Fonte/Imprenta: | Plants, v. 9, n. 4, 2020.
DOI: | https://doi.org/10.3390/plants9040525
Idioma: | Inglês
Conteúdo: | Terpenoids are a diverse class of metabolites that impact plant metabolism in response to environmental cues. They are synthesized either via a predominantly cytosolic (MVA) pathway or a plastidic pathway (MEP). In Arabidopsis, several enzymes from the MVA and MEP pathways are encoded by gene families, excluding MVK and DXR, which are single-copy genes. In this study, we assess the diversity, evolution and expression of DXR and MVK genes in selected angiosperms and Coffea arabica in particular. Evolutionary analysis revealed that DXR and MVK underwent purifying selection, but the selection effect for DXR was stronger than it was for MVK. Digital gene expression (DGE) profile analysis of six species revealed that expression levels of MVK in flowers and roots were high, whereas for DXR peak values were observed in leaves. In C. arabica, both genes were highly expressed in flowers, and CaDXR was upregulated in response to methyl jasmonate. C. arabica DGE data were validated by assessing gene expression in selected organs, and by plants treated with hexanoic acid (Hx) using RT-qPCR. MVK expression was upregulated in roots treated with Hx. CaDXR was downregulated in leaves by Hx treatment in a genotype-specific manner, indicating a differential response to priming.
Thesaurus Nal: | Angiospermae; Coffea arabica var. arabica; Genes; Terpenoids.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/230488/1/Low-Copy-Genes.pdf
Registro original: | Embrapa Café (CNPCa)
Exemplares: | CNPCa - (1558-1) - UPC - AP - DD -  -  -  - DIS