Dhiôvanna Corrêia Rocha
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Research Interests
Dhiôvanna Corrêia Rocha has a total of 7 co-authors. Here are the top co-authors by number of shared publications:
- Alexandre Siqueira Guedes Coelho
Universidade Federal de Goiás
1 shared publication - Beata Dedicova
Department of Plant Breeding, Swedish University of Agricultural Sciences (SLU), Sweden
1 shared publication - Claudio Brondani
Embrapa Arroz e Feijão, Brazil
1 shared publication - Isabela Pavanelli de Souza
Genetics and Plant Breeding, Brazilian Agricultural Research Corporation, Santo Antônio de Goiás, Brazil
1 shared publication - João Augusto Vieira de Oliveira
Advanced Bacterial Sciences Ltd., Great Britain
1 shared publication - Rosana Pereira Vianello
Embrapa Arroz e Feijão, Santo Antônio de Goiás, Brazil
1 shared publication
Latest Publications
- Open Access
- 1 January 2023
- Published by FapUNIFESP (SciELO) in Pesquisa Agropecuária Brasileira
- Vol. 58, e03167
Physiological and phenotypical effects of the overexpression of the OVP1 gene in Japonica rice
The objective of this work was to evaluate the physiological, phenotypic, and gene expression parameters in genetically modified (GM) rice plants that overexpress the Oryza sativa Vacuolar H+-Pyrophosphatase 1 (OVP1) gene, compared with non-genetically modified (NGM) rice. GM and NGM plants of the BRSMG Curinga cultivar were evaluated in two experiments, in a laboratory and greenhouse, in a randomized complete block design, with four replicates. Agronomic traits of interest were estimated, and transcriptome analysis and gene expression quantification were carried out. GM plants showed a 31 and 21% higher number of spikelets per panicle and total number of grains per panicle, respectively, in comparison with NGM plants. Physiological changes occurred during the grain-filling stage, in which GM plants presented a photosynthetic rate and carboxylation efficiency 61 and 89% higher than those of NGM plants, respectively. The overexpression of the OVP1 gene favors the upregulation of some photosynthesis genes and the increase in the number of spikelets and in the photosynthetic rate, but does not favor the increase in grain yield.
- 1 January 2023
- Published by FapUNIFESP (SciELO) in Pesquisa Agropecuária Brasileira
- Vol. 58, e03167
Open AccessPhysiological and phenotypical effects of the overexpression of the OVP1 gene in Japonica rice
The objective of this work was to evaluate the physiological, phenotypic, and gene expression parameters in genetically modified (GM) rice plants that overexpress the Oryza sativa Vacuolar H+-Pyrophosphatase 1 (OVP1) gene, compared with non-genetically modified (NGM) rice. GM and NGM plants of the BRSMG Curinga cultivar were evaluated in two experiments, in a laboratory and greenhouse, in a randomized complete block design, with four replicates. Agronomic traits of interest were estimated, and transcriptome analysis and gene expression quantification were carried out. GM plants showed a 31 and 21% higher number of spikelets per panicle and total number of grains per panicle, respectively, in comparison with NGM plants. Physiological changes occurred during the grain-filling stage, in which GM plants presented a photosynthetic rate and carboxylation efficiency 61 and 89% higher than those of NGM plants, respectively. The overexpression of the OVP1 gene favors the upregulation of some photosynthesis genes and the increase in the number of spikelets and in the photosynthetic rate, but does not favor the increase in grain yield.