A5076122397- Cassava research and cyanide
- Plant Micronutrient Interactions and Effects
- Banana Cultivation and Research
- Agricultural and Food Sciences
- Growth and nutrition in plants
- Phytase and its Applications
- Soil Management and Crop Yield
- Agricultural Science and Fertilization
- Isotope Analysis in Ecology
- Legume Nitrogen Fixing Symbiosis
- Nematode management and characterization studies
- Photosynthetic Processes and Mechanisms
- GABA and Rice Research
- Plant tissue culture and regeneration
- Genetics and Plant Breeding
- Food composition and properties
- Soybean genetics and cultivation
- Oil Palm Production and Sustainability
- Crop Yield and Soil Fertility
- Nuts composition and effects
- Plant Stress Responses and Tolerance
- Studies on Chitinases and Chitosanases
- Seed Germination and Physiology
- Botany and Plant Ecology Studies
- Amazonian Archaeology and Ethnohistory
Brazilian Agricultural Research Corporation
2013-2025
Agricultural Research Corporation
2009
University of Florida
1989
Abstract Cassava is a major tropical food crop in the Euphorbiaceae family that has high carbohydrate production potential and adaptability to diverse environments. Here we present draft genome sequences of wild ancestor domesticated variety cassava comparative analyses with partial inbred line. We identify 1,584 1,678 gene models specific varieties, respectively, discover heterozygosity millions single-nucleotide variations. Our reveal genes involved photosynthesis, starch accumulation...
Manioc-also called cassava and yuca-is among the world's most important crops, originating in South America early Holocene. Domestication for its starchy roots involved a near-total shift from sexual to clonal propagation, almost all manioc worldwide is now grown stem cuttings. In this work, we analyze 573 new published genomes, focusing on traditional varieties Americas wild relatives herbaria, reveal effects of clonality. We observe kinship over large distances, maintenance high genetic...
Cassava (Manihot esculenta Crantz) is a tropical root crop and sensitive to low temperature. However, it poorly know how cassava can modify its metabolism growth adapt cold stress. An investigation aimed at better understanding of cold-tolerant mechanism plantlets was carried out with the approaches physiology proteomics in present study. The principal component analysis seven physiological characteristics showed that electrolyte leakage (EL), chlorophyll content, malondialdehyde (MDA) may...
Cassava polyploid breeding has drastically improved our knowledge on increasing root yield and its significant tolerance to stresses. In cassava plants, increases in DNA content highly affect cell volumes anatomical structures. However, the mechanism of this effect is poorly understood. The purpose present study was compare validate changes between cultivar NZ199 diploid autotetraploid at proteomic levels. results showed that leaf proteome clearly differentiated from genotype using 2-DE...
Carotenoid-protein complex (CPC) was isolated from chromoplast-enriched suspensions of cassava storage root (CSR) using size exclusion chromatography and characterized. Peptide sequences (LC_MS/MS spectrum) obtained CPC their corresponding proteins were publically available databases. Small Heat Shock Proteins (sHSPs) the most abundant identified in CPC. Western blot analysis showed that Fribrillin Or-protein present yellow but not or white root. Results qRT-PCR helped identify an isoform...
The purpose of this study was to estimate the genetic divergence in sweet cassava accessions by molecular markers and quantitative qualitative characters, as well determine correlation between these estimates. Sixteen Regional Cassava Germplasm Bank Cerrado were evaluated under field conditions, for 13 33 characters. In laboratory, with RAPD markers. Subsequently, matrixes dissimilarity/distance among estimated based on Besides, significance estimated. RAPD, data indicated existence high...
The sweet cassava cultivars BRS 396, 397, 398 and 399, were selected through 27 participatory tests conducted at Distrito Federal, Brazil. Their agronomic performance their high level of acceptance among producers qualify them as a new crop option for cultivation in the region.
O objetivo deste trabalho foi estimar a divergência genética entre acessos de mandioca açucarados e não açucarados, por meio marcadores moleculares, caracteres quantitativos qualitativos, bem como determinar correlação essas estimativas. Foram utilizados quatro com duas variedades locais comerciais. Os foram avaliados em campo, laboratório, RAPD, quanto 12 33 morfológicos. estimadas as matrizes dissimilaridade/distância os acessos, dos qualitativos da significância matrizes. A elevada...
Cassava is cultivated for two ends proposals: "sweet cassava" as fresh consumes and "industry source of starch farina. Landraces were used to discover "spontaneous mutations" develop evolutionary breeding perspective gene function. Genomic Proteomic resources obtained. Gene expression by RNA blot Microarray analysis performed identify differentially expressed genes. A new sugary cassava was identified be related missing BEI a nonsense mutation in GBSSI leading amylose free starch. pink...
Os programas de melhoramento genético mandioca mesa estão focados na seleção variedades com a presença carotenoides nas raízes reserva. O trabalho foi realizado o objetivo avaliar potencial agronômico e teor em reserva acessos coloração da polpa das creme, amarela rosada visando à utilização direta por produtores e/ou sua como genitores melhoramento. Treze foram avaliados experimento conduzido Embrapa Cerrados duas safras, quanto aos caracteres altura primeira ramificação, planta, massa...
Cassava (Manihot esculenta Crantz) wild relatives remain a largely untapped potential for genetic improvement. However, the domestication syndrome phenomena from species to cultivated cassava poorly understood. The analysis of leaf anatomy and photosynthetic activity showed significantly different between cultivars SC205, SC8 relative M. ssp. Flabellifolia (W14). dry matter, starch amylose contents in storage roots were more than that species. In order further reveal differences...
Cultivar differences in leaf photosynthesis (LPS) and grain yield of wheat [Triticum aestivum L.] were examined under irrigated non conditions Cerrados, a semi-arid region Brazil. Twelve Brazilian, five Mexican two Japanese cultivars used this project. The plants grown low planting density to elucidate the relationship between LPS potential an individual plant. Brazilian ranked high LPS, followed by non-irrigated conditions, although there practically no among these three groups conditions....
Cassava storage roots result from swelling of adventitious by secondary growth. In the present study we aimed to gain insight into molecular processes occurring during cassava root formation. We report a comparative gene expression in and order identify genes possibly related organ Our results revealed five with higher levels xylem than roots. Among them, Mec1 coding for Pt2L4 glutamic acid-rich protein putative RING Zinc Finger LEA were strongly induced tissue. Keywords: cassava, analysis,...
We report the isolation and characterization of a cDNA sequence (Mec1) coding for glutamic acid-rich protein (Pt2L4) from cassava storage roots. Comparative analysis showed high identity Pt2L4 with C54, which is expressed in vascular tissues Northern blot that Mec1 transcript expression pattern might be related to maturation parenchyma cells. Keywords: Cassava, gene expression, protein, secondary growth, root formation
The aim of the present work was to characterize and estimate genetic variability among industrial purpose cassava accessions, with potential for adaptation conditions Cerrado Central Brazil, by means quantitative qualitative characters, molecular markers through isolated joint analysis, as well establish correlation estimated indexes obtained each used methodology. Sixteen accessions Brazil were evaluated in field terms 11 characters 33 an experiment carried out at Embrapa Cerrados. also...
The current research addressed the effect of fertilizers containing Ca 2+ and Mg on cassava ( Manihot esculenta Crantz) storage roots (CSRs) during postharvest physiological deterioration (PPD). Cassava PPD tolerant susceptible genotypes were grown in pots treated with or . Eight months after planting, CSRs harvested stored at room temperature for 30 d. Morphological changes, antioxidant activities, mineral content, starch content determined. results indicated that application delayed >10...
The Northeast Region of the state Minas Gerais, Brazil, presents special characteristics with a large number family farms.Table sweet cassava high potential to be incorporated in this agriculture system for reasons such yield and proximity consumer market Federal District.However, cultivation region occurs low use technologies.Thus, aim study was determine agronomic performance eight elite accessions municipality Unai (MG).The experiments were conducted between November 2010 March 2012...
Carotenoids in cassava storage roots play important roles benefiting people’s health the tropics because they provide essential nutrients and antioxidants. Although related genes loci associated with carotenoid metabolism many species are well reported, poorly understood. In present study, GWAS base on SLAF-seq was used detecting correlated to contents 98 accessions from a F1 mapping population. The were divided into four subgroups. On basis of general linear compressed models, 144 detected...
Two sweet cassava cultivars with pink pulp, BRS 400 and 401, are validated through participatory tests conducted at Distrito Federal, Brazil. Their high root yield stability their level of acceptance among producers certainly qualify them as a new crop option for cultivation in the region.