Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/978296
Research center of Embrapa/Collection: Embrapa Soja - Artigo em periódico indexado (ALICE)
Date Issued: 2014
Type of Material: Artigo em periódico indexado (ALICE)
Authors: MARCOLINO-GOMES, J.
RODRIGUES, F. A.
FUGANTI-PAGLIARINI
BENDIX, C.
NAKAYAMA, T. J.
CELAYA, B.
MOLINARI, H. B. C.
OLIVEIRA, M. C. N. de
HARMON, F. G.
NEPOMUCENO, A. L.
Additional Information: JULIANA MARCOLINO-GOMES, UEL; FABIANA APARECIDA RODRIGUES, CNPSo; RENATA FUGANTI-PAGLIARINI, CNPSO; CLAIRE BENDIX, ARS/USDA; THIAGO JONAS NAKAYAMA, UFV; BRANDON CELAYA, ARS/USDA; HUGO BRUNO CORREA MOLINARI, LABEX USA; MARIA CRISTINA NEVES DE OLIVEIRA, CNPSO; FRANK G. HARMON, ARS/USDA; ALEXANDRE LIMA NEPOMUCENO, CNPSo - Labex USA.
Title: Diurnal oscillations of soybean circadian clock and drought responsive genes.
Publisher: Plos One, v. 9, n. 1, p. 1-13, Jan. 2014.
Language: pt_BR
Description: Rhythms produced by the endogenous circadian clock play a critical role in allowing plants to respond and adapt to the environment. While there is a well-established regulatory link between the circadian clock and responses to abiotic stress in model plants, little is known of the circadian system in crop species like soybean. This study examines how drought impacts diurnal oscillation of both drought responsive and circadian clock genes in soybean. Drought stress induced marked changes in gene expression of several circadian clock-like components, such as LCL1-, GmELF4- and PRR-like genes, which had reduced expression in stressed plants. The same conditions produced a phase advance of expression for the GmTOC1- like, GmLUX-like and GmPRR7-like genes. Similarly, the rhythmic expression pattern of the soybean drought-responsive genes DREB-, bZIP-, GOLS-, RAB18- and Remorin-like changed significantly after plant exposure to drought. In silico analysis of promoter regions of these genes revealed the presence of cis-elements associated both with stress and circadian clock regulation. Furthermore, some soybean genes with upstream ABRE elements were responsive to abscisic acid treatment. Our results indicate that some connection between the drought response and the circadian clock may exist in soybean since (i) drought stress affects gene expression of circadian clock components and (ii) several stress responsive genes display diurnal oscillation in soybeans.
Thesagro: Soja.
Data Created: 2014-02-03
Appears in Collections:Artigo em periódico indexado (CNPSO)

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