A5059574758- Banana Cultivation and Research
- Seed Germination and Physiology
- Plant and animal studies
- Growth and nutrition in plants
- Genetic diversity and population structure
- Ecology and Vegetation Dynamics Studies
- Plant Genetic and Mutation Studies
- Genetically Modified Organisms Research
- Plant tissue culture and regeneration
- Genetics and Plant Breeding
- Biological Control of Invasive Species
- Plant Pathogens and Resistance
- Botany, Ecology, and Taxonomy Studies
- Seed and Plant Biochemistry
- Research in Cotton Cultivation
- Genetic and Environmental Crop Studies
- Papaya Research and Applications
- Agricultural and Food Sciences
- Agricultural pest management studies
- Leaf Properties and Growth Measurement
- Psidium guajava Extracts and Applications
- Sunflower and Safflower Cultivation
- Peanut Plant Research Studies
- GABA and Rice Research
- Genetic Mapping and Diversity in Plants and Animals
Brazilian Agricultural Research Corporation
2012-2024
National Center for Genetic Engineering and Biotechnology
2016
Universidade de São Paulo
2005-2006
Universidade Brasil
2006
Microsatellites, or simple sequence repeats (SSRs), have been the most widely applied class of molecular markers used in genetic studies, with applications many fields genetics including conservation, population genetics, breeding, and paternity testing. This range is due to fact that microsatellite are co-dominant multi-allelic, highly reproducible, high-resolution based on polymerase chain reaction (PCR). When first introduced, development was expensive but now new efficient methods...
The cultivated Gossypium spp. (cotton) represents the single most important, natural fiber crop in world. In addition to its fiber, oil and protein portion of cottonseed also significant economic value. To protect worldwide value cotton byproducts, coordinated efforts collect maintain genetic resources have increased over last 100 yr. classified are extensive include five tetraploid species primary gene pool, 20 diploid secondary 25 tertiary pool. This report provides information on status...
A new method is proposed for the extraction of morphometric characteristics plant leaf structures. sample 10 species genus Passiflora (P. coriacea Juss., P. foetida L., miersii Mast., organensis Gardner, pohlii suberosa amethystina J.C. Mikan, caerulea gibertii N.E.Br., maliformis L.) was used in an experiment to test method. This shows a wide range forms, but there are some pairs or groups whose morphological similarity makes their correct identification difficult. The multiscale function...
Lima bean (Phaseolus lunatus L.) is an important source of protein for people as it contributes all the essential amino acids necessary humans. In Brazil, lima has a great relevance, mainly in Northeast, where alternative income addition to food source. It high degree phenotypic variation seed traits, which are understanding genetic diversity and origin this crop. We aimed characterize 166 accessions cultivated from Brazil using qualitative quantitative descriptors through Ward-MLM (Modified...
Abstract Here we described the development of first set Passiflora microsatellite loci isolated from an enriched genomic library. A sample 43 individuals 12 accessions yellow passion fruit was used to characterize those loci, which revealed up 20 alleles per locus. Two were monomorphic. The observed ( H O ) and expected E heterozygosities very similar, as for a self‐incompatible species. Allelic diversity T 0.444. This markers will permit genetic structure analyses cultivated wild...
Abstract Passiflora alata is one of the commercialized species passion vines, grown for its edible fruits. It found in South America, mainly Paraguay, Argentina, Peru and Brazil. The development a set microsatellite markers was proposed to provide tools analysing both genetic structure wild populations reproductive system species, which are poorly understood. Seven were developed from P. ‐genomic library enriched simple sequence repeats (SSR). Twelve individuals genotyped, levels expected...
Objetivou-se nesse trabalho avaliar a germinação inicial de sementes Passiflora setacea DC com diferentes níveis umidade e após conservação sob temperaturas. Foram utilizados tratamentos pré-germinativos nitrato potássio (KNO3) ácido giberélico (GA3). A foi conduzida em papel germitest embebido água. O teste tetrazólio empregado para verificar viabilidade das os períodos armazenamento. Foi possível que: (i) as P. podem ser desidratadas até atingir, aproximadamente 4,7% água (base úmida) sem...
The aim of this study was to evaluate the selected 41 SSR markers developed for yellow passion fruit (Passiflora edulis f. flavicarpa Sims.) their transferability 11 different Passiflora species. Twenty-one were successfully amplified in 10 wild species producing 101 bands. All amplifiable at least one mean 68,8%, ranging from 15,4% (primer PE11) 100 % (PE13, PE18, PE37, PE41 and PE88). Transferability higher subgenus than those Decaloba Dysosmia subgenus. results indicated a high level...
The primary gene pool of the cultivated peanut (Arachis hypogaea L., allotetraploid AABB) is very narrow for some important characteristics, such as resistance to pests and diseases.However, Arachis wild diploid species, particularly those from section Arachis, still have these characteristics.To improve crops, genes species can be introgressed by backcrossing hybrids with A. hypogaea.When whose genomes are similar crossed, sterile result.Artificially doubling number chromosomes results in...
Abstract With increasing rates of habitat destruction and species loss, ex situ conservation is gaining global momentum reluctance in relying on rapidly giving way to a more optimistic, strategic view. Target 8 the Global Strategy Plant Conservation calls for at least 75 percent threatened plant accessible collections, preferably country origin, 20 them included recovery restoration programs. Here, we provide updated information Brazil's progress towards through nationwide examination how...
The objective of this work was to characterize 119 accessions guava and 40 "araçá" sampled in 35 Brazilian ecoregions, according the International Union for Protection New Varieties Plants (UPOV) descriptors. majority presented wide spacing leaf veins, while medium close spacing. Most fruits were classified as small, contrasting with large accessions. (91%) white flesh fruit color, 58% pale pink, pink dark colors. Fruit differences among wild cultivated Psidium species indicate most altered...
This study aimed to assess the feasibility of comet and cytogenetic tests as tools for evaluating genomic instability in seeds Oryza sativa L. (rice) Phaseolus vulgaris (beans) from gene banks. Rice beans were exposed methyl methanesulfonate (MMS) a reference DNA damaging agent. Seeds two accessions rice obtained Embrapa Beans - Brazil. Seed groups imbibed three concentrations MMS periods time carry out tests, one period test. At 10 15 mg/L, induced cytotoxic and/or mutagenic effects...
Abstract Cultivated species, on which humankind depends for survival, have been created by farmers that crossed and selected wild plants developed landraces. Early in 20th century, the theory of Centers Origin Plants was proposed Vavilov. He also warned world about loss plant genetic diversity due to dominance a small number genetically similar crops, fact help starting movement conservation resources. From this time, several strategies institutions were established around act resources...
Dentre os processos que precedem a conservação em longo prazo, secagem tem papel fundamental, uma vez o conteúdo de água das sementes afeta diretamente sua longevidade. Os objetivos desse trabalho foram pesquisar efeito da umidificação prévia após ultrassecagem diferentes teores sobre qualidade fisiológica girassol. Sementes com inicial 4,7% embebidas previamente até 10,2%, e submetidas à lenta, conduzida câmara secagem, rápida, sílica gel, conteúdos 7,4; 3,2; 2,9% 5,3; 2,1%,...
The physical-chemical characteristics of strawberry fruits were evaluated in the following cultivars 'Aromas', 'Camarosa', 'Cegnidarem', 'Diamante', 'Earlibrite', 'Festival', 'Galexia', 'Oso Grande', 'Plarionfre' and 'Sabrosa' South area Minas Gerais State, Brazil. Samples ten collected monthly during period from 21 st September 2006 to 8 th May 2007. experiment was carried out randomized blocks with three repetitions sixteen plants parcels. Fruit weight, internal cavity, coloration fruits,...