Antonio Costa de Oliveira

Antonio Costa de Oliveira
Universidade Federal de Pelotas | UFPEL · Department of Plant Sciences

PhD

About

450
Publications
85,013
Reads
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10,721
Citations
Citations since 2017
90 Research Items
4570 Citations
20172018201920202021202220230200400600800
20172018201920202021202220230200400600800
20172018201920202021202220230200400600800
20172018201920202021202220230200400600800
Additional affiliations
February 2006 - July 2007
University of Georgia
Position
  • Research Associate
January 1994 - present
Universidade Federal de Pelotas/Federal University of Pelotas
Position
  • Professor (Full)
January 1992 - April 1996
Purdue University
Position
  • PhD Student

Publications

Publications (450)
Article
Full-text available
The olive tree (Olea europaea L.) is a species of great importance in history and economic, with large phenotypic variability, represented through a wide range of cultivars spread throughout the world. There are several studies on the characterization of a large number of cultivars of the species. However, there is a need to uncover how these pheno...
Article
Full-text available
Although much is known about seed and fruit development at the molecular level, many gaps remain in our understanding of how cell wall modifications can impact developmental processes in plants, as well as how biomechanical alterations influence seed and fruit growth. Mutants of Arabidopsis thaliana constitute an excellent tool to study the functio...
Article
Rice production (Oryza sativa L.) is among the most economically important activities in the world. However, soil and salinity coming from irrigation water reduce rice yield. Therefore, the identification and/or development of salt-tolerant rice genotypes is a strategy to minimize this problem. The development of new genotypes depends on the presen...
Preprint
Full-text available
WRKY transcription factors regulate several biological processes in plants, including responses to biotic stresses and tolerance to abiotic stresses, and are part of a gene superfamily in higher plants. There are many studies on the functions of WRKY proteins in several model species, aiming at identification and functional characterization, but th...
Article
Full-text available
Cold tolerance at germination and seedling stage is one of the most seeked traits in Southern Brazilian rice (Oryza sativa L.) cultivars, thus, the availability of improved methods for germplasm assessment is of high importance for breeding programs. The aim of this study was to validate an optimized Average Tolerance Index (ATI) for rice germplasm...
Article
Full-text available
The WRKY transcription factor gene family is known to be involved in plant defense against pathogens and in tolerance to different environmental stresses at different stages of development. The response mechanisms through which these genes act can be influenced by different phytohormones as well as by many trans- and cis-acting elements, making thi...
Article
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Key Message pGhERF105 and pGhNc-HARBI1 promoters are highly responsive to CBW infestation and exhibit strong activity in vegetative and reproductive tissues, increasing their potential application in GM crop plants for pest control. Abstract The main challenge to cotton (Gossypium hirsutum) crop productivity is the constant attack of several pests...
Article
Full-text available
The olive crop has a large diversity in cultivars around the world, whose identification have been based on leaf, stem or fruit traits. However, these traits may be influenced by the environment, which has led to the misidentification of cultivars. The variability of the pistil and pollen structure under electron scanning and light microscopy were...
Article
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Microsatellites (SSRs) are tandem repeat sequences in eukaryote genomes, including plant cytoplasmic genomes. The mitochondrial genome (mtDNA) has been shown to vary in size, number, and distribution of SSRs among different plant groups. Thus, SSRs contribute with genomic diversity in mtDNAs. However, the abundance, distribution, and evolutionary s...
Article
Canola is an important oilseed crop and its oil is used in human diet and biodiesel production. Abiotic stressors severely constrain canola growing causing economic losses. Under adverse conditions, plant cells coordinate their metabolic pathways to produce anti-stress agents. The understanding of the metabolic profile can be used to improve target...
Article
Wheat is a staple food for a large part of the world's population and faces a continuous demand for increased productivity. The presence of genetic variability allows the success in developing cultivars with higher yield. The understanding of the genetic variability available is crucial for their effective use in breeding programs. Inheritance of w...
Article
Full-text available
Rice is the staple diet to half of the world’s population, being a major source of carbohydrates, vitamins, and some essential elements. However, rice naturally contains low amounts of essential minerals such as iron (Fe) and zinc (Zn), which are drastically decreased after milling. Thus, populations that consume mostly rice may have micronutrient...
Chapter
This book presents reviews on the application of the technology for crop improvement towards food and nutrition security, and research status on mutation breeding and associated biotechnologies in both seed crops and vegetatively propagated crops. It also presents perspectives on the significance of next-generation sequencing and bioinformatics in...
Article
Full-text available
Rice blast, caused by the fungus Pyricularia oryzae L., is considered one of the main threats to world rice production. The development of resistant cultivars is one of the best and sustainable control alternatives. Plant breeding efforts have been accelerated by genetic mapping (linkage and associative) and marker assisted selection. On the other...
Article
Full-text available
Avena sativa is the sixth most produced cereal in the world. It is widely used for human consumption. Due to the bromatological quality of its forage, it is used for direct grazing, hay and silage. Due to the large number of interesting characteristics of forage white oats, the selection of unique characteristics becomes difficult and expensive for...
Article
Full-text available
Micronutrient deficiency affects billions of people, especially in countries where the diet is low in diversity with inadequate consumption of fruits, vegetables, and animal-source foods, and higher consumption of staple food, i.e., cereals, that have low concentrations of micronutrients. Genetic biofortification is a strategy to mitigate this prob...
Article
Full-text available
Cooking quality is an important attribute in Common/Asian rice (Oryzasativa L.) varieties, being highly dependent on grain starch composition. This composition is known to be highly dependent on a cultivar’s genetics, but the way in which their genes express different phenotypes is not well understood. Further analysis of variation of grain quality...
Article
Full-text available
A healthy diet is directly associated with a nutrient-rich and toxic contaminant poor intake. A diet poor in diversity can lead to micronutrient deficiency. The intake of functional foods can provide benefits in the prevention and treatment of diseases. Oats are a functional food; are a source of soluble fiber, lipids, proteins, vitamins, minerals,...
Article
• Rice is vital for food security. Due to its tropical origin, rice suffers from cold that affects the entire plant lifecycle. Key genes have been identified involved in cold tolerance. WRKY transcription factors have been reported downstream of cold signaling cascade and regulate cold responsive genes. WRKYs generally are downstream of MAPK cascad...
Article
The development of rice genotypes with higher mineral content and less accumulation of toxic elements can help to mitigate problems related to mineral deficiency and insure consumption of safe foods. However, genetic improvement depends on the presence of genetic diversity. Therefore, here we characterize a rice panel, grown in southern Brazil, reg...
Article
Genes of tolerance for herbicide has become one of the options more used in world level for the weed control. This study had as objective to evaluated crosses between tolerant irrigated rice plants and sensitive to herbicides of the imidazolinone chemical group, through the evaluation of F2 populations. Five genotypes of irrigated rice were crossed...
Article
Full-text available
In soils under acidic conditions, Aluminum (Al) is solubilized to its ionic form, which is toxic to plants. Al rapidly inhibits root elongation, water and nutrient uptake, resulting in crop yield reduction. Members of the MATE family are responsible for citrate transport and Al detoxification in different species. In rice, the OsFRDL1 gene (MATE fa...
Article
Full-text available
The quality concept for cooked rice (Oryza sativa L.) varies according to customers culture and habits, varying from stickier, in Asia, to looser grains, more appreciated in South America. This parameter, no matter the taste, is an important factor in the evaluation of what constitutes a good rice grain. Higher grain stickiness is associated not on...
Research
Rice yield is frequently impaired by abiotic adverse conditions in several parts of the globe. One of these constraints is soil iron toxicity. Plants respond to adverse conditions by activating different mechanisms, some of which have already been elucidated. Recently, autophagy has been associated with plant tolerance to abiotic stresses, however,...
Preprint
Full-text available
Background: Cooking quality is an important attribute in Common/Asian rice (Oryza sativa L.) varieties, being highly dependent on grain starch composition. This composition is known to be highly dependent on a cultivar’s genetics, but the way in which their genes express different phenotypes is not well understood. Further analysis of variation of...
Article
Full-text available
Rice production estimate in Brazil is 10.7 million tons, of which approximately 80% comes from the flood irrigation system in the southern region. Rice breeding programs have an important role in the development of cultivars with high production potential and industrial quality. This study estimates variance components and genetic parameters in F3...
Chapter
The increasing world population and consumer requirements are driving forces for rice (Oryza sativa L.) breeding programs worldwide. The development of novel cultivars is challenged by the necessity of combining high yield and superior quality traits, in a timely manner. Precision breeding strategies, such as genetic engineering and genome editing,...
Article
Full-text available
Main conclusion The structure of the cotton uceA1.7 promoter and its modules was analyzed; the potential of their key sequences has been confirmed in different tissues, proving to be a good candidate for the development of new biotechnological tools. Abstract Transcriptional promoters are among the primary genetic engineering elements used to cont...
Article
Full-text available
Water deficit is one of the most important stresses affecting the maize crop. Whilst the development of osmotic stress tolerant maize (Zea mays L.) genotypes is an effective approach for reducing yield losses, understanding of the basic mechanisms of response and tolerance is limited. Under normal conditions, autophagy works at baseline levels to m...
Chapter
Arsenic (As) in food is a threat for human health, and among all cereal rice is the most important source of the metalloid through diet. The dynamic of the element and the natural ability of rice to uptake, transport, and accumulate the metalloid at grains have motivated important research to be carried out in this regard. Thus, the aim of this cha...
Book
This book aims to provide an overview of the challenges and available technologies to improve rice and provide a response to the challenge posed by increasing world population and the resultant food shortages. Nutritional aspects of rice products and omics and the molecular technologies currently being used are covered in depth. As a staple food fo...
Article
Full-text available
In plant breeding, the dialelic models univariate have aided the selection of parents for hybridization. Multivariate analyses allow combining and associating the multiple pieces of information of the genetic relationships between traits. Therefore, multivariate analyses might refi ne the discrimination and selection of the parents with greater pot...
Article
Full-text available
There is a worldwide concern about a possible narrowing of the genetic base of most crops, as e.g. that of rice (Oryza sativa L.), as a result of the modern breeding practices. Thus, the purpose of this study was to investigate this phenomenon in the germplasm of elite paddy rice in southern Brazil, including frequently used accessions in crosses....
Article
Full-text available
There is little research that addresses associations between the yield of wheat grains and their components in different managements of nitrogen fertilization top dressing. The objective this work linear estimate associations cause and effect between production components and the yield grains in the difference scenarios nitrogen (N) management in t...
Article
Full-text available
Maize (Zea mays L.) is the cereal most produced in the world, due to its wide scope and utilization in human and animal diet. This study aims to evaluate the agronomic performance of intervarietal maize hybrids, as well as the linear associations, interrelations of cause and effect, and the genotypes dispersion through canonical variates. The exper...
Article
Full-text available
Background: Bread wheat is one of the most important crops in the world. Its domestication coincides with the beginning of agriculture and since then, it has been constantly under selection by humans. Its breeding has followed millennia of cultivation, sometimes with unintended selection on adaptive traits, and later by applying intentional but em...
Article
Full-text available
Objectives: This study was conducted to establish a method for early, quick and cheap screening of iron excess tolerance in rice (Oryza sativa L.) cultivars. Results: Based on the experiments, iron excess leads to reduction in shoot length (SL) and this can be a useful characteristic for adequate screening of tolerant genotypes. The sensitive ge...
Article
Full-text available
The high selection pressure applied in rice breeding since its domestication thousands of years ago has caused a narrowing in its genetic variability. Obtaining new rice cultivars therefore becomes a major challenge for breeders and developing strategies to increase the genetic variability has demanded the attention of several research groups. Unde...
Article
Canola (Brassica napus L. var. oleifera) is cultivated in the Southern Brazil as an alternative winter crop in the rotation system. No-tillage and hydromorphic soils favor the formation of aliphatic organic acids with short chain and low molecular weight, as acetic, butyric, and propionic acids. These acids may cause negative effects on the canola...
Article
Full-text available
Background: Fusarium Head Blight (FHB) is a worldwide devastating disease of bread wheat (Triticum aestivum L.). Genetic resistance is the most effective way to control FHB and many QTL related to this trait have been mapped on the wheat genetic map. This information, however, must be refined to be more efficiently used in breeding programs and for...
Article
The objective of this study was to compare the gene expression levels of the agr locus and prfA gene during adhesion and biofilm formation by four L. monocytogenes isolates (2 biofilm-forming and 2 non–forming) on stainless steel and polystyrene surfaces at different temperatures (10 °C, 20 °C and 37 °C), and times (8 h, 12 h, 24 h and 48 h). The a...
Article
The morphological characterization allows one to estimate and evaluate the genetic distance among different varieties, identifying heterotrophic groups by means of clustering methods. The objectives of the study were to characterize improved open-pollinated varieties (VPAs) and maize landraces based on the main quantitative agronomic traits and to...
Chapter
The increasing demands of world’s population make it mandatory to increase food production. Global climate changes currently threaten this goal, through many adverse conditions, such as water stress by excess (waterlogging or flooding) or scarcity (drought). One alternative to overcome this challenge is the development of stress resilient crops, si...
Article
Full-text available
Assessing genetic variability is essential to crop breeding and represents the basis for a successful crop selection, including rice (Oryza sativa L.). Root system shows a large range of roles that could be improved genetically. However, it has been virtually neglected by most breeders. The objective was to characterize a selected sample of the Bra...
Article
Full-text available
The objective of this work was to compare uni- and multivariate biometric methods to evaluate the adaptability and stability of an important group of white oat (Avena sativa) cultivars grown in Southern Brazil. The used experimental design was a randomized complete block, in a factorial arrangement of 12 environments x 7 cultivars, with three repli...
Article
Full-text available
The objective of this work was to evaluate the performance of intervarietal corn (Zea mays) hybrids with topcross crosses between landrace populations, and to confirm whether genetic dissimilarity between populations is correlated with the heterosis of the intervarietal hybrids in the field. Nine topcross hybrids were evaluated with their tester 'B...
Article
Full-text available
Background SUMOylation is an essential eukaryotic post-translation modification that, in plants, regulates numerous cellular processes, ranging from seed development to stress response. Using rice as a model crop plant, we searched for potential regulatory points that may influence the activity of the rice SUMOylation machinery genes. Results We a...
Article
Developing drought resistant cereal crops continues to be a major challenge in the climate change scenario. Sorghum is a C4 crop and its yield levels are highly affected by terminal drought stress under rainfed conditions. Efficient screening methods coupled with high throughput phenotyping techniques are required for breeding climate resilient cro...
Article
Full-text available
This article was not made open access when initially published online, which was corrected before print publication. In addition, ORCID links were missing for 12 authors and have been added to the HTML and PDF versions of the article.
Article
Full-text available
Soils with high salt concentrations (NaCl) may affect plant development and nutrient uptake in rice. The objective of this experiment was to evaluate the response of rice cultivars released by Embrapa Clima Temperado to salt stress at the germination and seedling stages. Four NaCl concentrations (0, 40, 80 and 120 mM) and a random factorial design...
Article
Full-text available
The use of nutrient solution combined with different herbicide concentrations allows the evaluation and discrimination of tolerant and non-tolerant genotypes to imidazolinone herbicides. The objectives of this research were to identify possible morphological characteristics to be used as markers of resistance to imidazolinones, as well as the ident...
Article
Narrowing of genetic diversity and the quantitative nature of most agronomic traits is a challenge for rice breeding. Genome-wide association studies have a great potential to identify important variation in loci underlying quantitative and complex traits; however, before performing the analysis, it is important to assess parameters of the genotypi...
Article
Full-text available
The objective of this work was to estimate the effects of genotype x environment interaction and the genetic potential of flood-irrigated rice cultivars, released between 1972 and 2017, for the state of Rio Grande do Sul, Brazil. The experiments were carried out in the field, in all agroclimatic regions of flood-irrigated rice crop in the state, be...
Article
Full-text available
WRKY transcription factors (TFs) are responsible for the regulation of genes responsive to many plant growth and developmental cues, as well as to biotic and abiotic stresses. The modulation of gene expression by WRKY proteins primarily occurs by DNA binding at specific cis-regulatory elements, the W-box elements, which are short sequences located...
Article
Rice WRKYs comprise a large family of transcription factors and present remarkable structure features and a unique DNA binding site. Their importance in plants goes beyond the response to stressful stimuli, since they participate in hormonal pathways and developmental processes. Indeed, the majority of WRKYs present an independent activation since...
Article
Irrigated rice (Oryza sativa L.) is a crop of extreme social and economic importance in Brazil, and the state of Rio Grande do Sul accounts for >70% of the national production. The Brazilian Agricultural Research Corporation (Embrapa) is focused on rice breeding, with the aim of developing cultivars with significantly increased grain yield and impr...
Article
Responses of rice to submergence have been extensively studied, but the molecular network behind the tolerance to this stress is still incomplete. Transcription factors (TFs) are important players in gene transcription regulation during stresses. Here, we analyzed expression of WRKY genes and morphological and anatomical changes in different rice c...