A5004501076- Plant tissue culture and regeneration
- Chromosomal and Genetic Variations
- Plant Virus Research Studies
- Coffee research and impacts
- Genetic Mapping and Diversity in Plants and Animals
- Plant Genetic and Mutation Studies
- Transgenic Plants and Applications
- Plant Diversity and Evolution
- CRISPR and Genetic Engineering
- Plant and animal studies
- Plant Reproductive Biology
- Pineapple and bromelain studies
- Banana Cultivation and Research
- Growth and nutrition in plants
- Plant Pathogens and Resistance
- Fern and Epiphyte Biology
- Plant Stress Responses and Tolerance
- Plant biochemistry and biosynthesis
- Weed Control and Herbicide Applications
- Plant Disease Resistance and Genetics
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Genetic and Environmental Crop Studies
- Genomics and Phylogenetic Studies
- Cocoa and Sweet Potato Agronomy
- Seed Germination and Physiology
Universidade Federal de Viçosa
2009-2025
Brazilian Agricultural Research Corporation
2022
Universidade Federal do Espírito Santo
2011-2021
Natura (Brazil)
2017
Cadmium (Cd2+ ) is highly harmful to plant growth. Although Cd2+ induces programmed cell death (PCD) in cells, stress whole plants during later developmental stages and the mechanism underlying -mediated toxicity are poorly understood. Here, we showed that limits growth, causes intense redness leaf vein, yellowing, chlorosis R1 reproductive stage of soybean (Glycine max). These symptoms were associated with -induced PCD, as -stressed leaves displayed decreased number nuclei, enhanced death,...
Repetitive sequences are recognized for their roles in plant genome organization and function. Mobile elements notable repeatome due to intrinsic mutagenic potential, which is related the origin of adaptive novelties. Understanding genomic dynamics fundamental enlighten role evolution. We aimed map assemble first karyogram a Coffea species with closer look at mobile elements. Four LTR-retrotransposons (LTR-RTs) 18S rDNA eugenioides, diploid progenitor allotetraploid arabica, were...
Micronuclei originate from DNA damage generated by clastogenic and/or aneugenic effects. Depending on the pattern of damage, they may have distinct genomic origin and composition. Sequences centromere, telomere rDNA been identified in plant micronuclei. However, other sequences also be present micronuclei, as well their contents different. Here, we investigate content, composition micronuclei induced Zea mays methyl methanesulfonate (MMS). showed a wide range distribution, suggesting diverse...
Euploidy plays an important role in the evolution and diversification of Psidium Linnaeus, 1753. However, few data about nuclear DNA content, chromosome characterization (morphometry class) molecular markers have been reported for this genus. In context, present study aims to shed light on genome guineense Swartz, 1788, comparing it with guajava Using flow cytometry, 2C value P. was = 1.85 picograms (pg), karyotype showed 2n 4x 44 chromosomes. Thus, has four sets, accordance basic number (x...
Polyploidy means having more than two basic sets of chromosomes. Polyploid plants may be artificially obtained through chemical, physical and biological (2n gametes) methods. This approach allows an increased gene scope expression, thus resulting in phenotypic changes such as yield product quality. Nonetheless, breeding new cultivars induced polyploidy should overcome deleterious effects that are partly contributed by genome epigenome instability after polyploidization. Furthermore,...
Indirect somatic embryogenesis (ISE) is a morphogenetic pathway in which cells form callus and, later, embryos (SE). 2,4-dichlorophenoxyacetic acid (2,4-D) synthetic auxin that promotes the proliferation and dedifferentiation of cells, inducing ISE. However, 2,4-D can cause genetic, epigenetic, physiological morphological disorders, preventing regeneration and/or resulting abnormal (ASE). We aimed to evaluate toxic effect during Coffea arabica C. canephora ISE, assessing SE morphology,...
Chicken red blood cells (CRBCs) are widely used as standards for DNA content determination. Cytogenetic data have shown that the Z sex chromosome is approximately twice large W, so differs to some extent between male (ZZ) and female (ZW) chickens. Despite this fact, CRBCs been indiscriminately in absolute genome size Our work was conducted verify whether differences Gallus gallus domesticus “Leghorn” nuclei ZZ/ZW chromosomes can be resolved by image cytometry (ICM). Air-dried smears stained...
RESUMO: Quinze primers ISSR (entre sequências simples repetidas) foram utilizados para avaliar a diversidade genética entre e dentro de pomares comerciais Theobroma grandiflorum (Willd. ex Spreng.) K. Schum. Para isso, analisados sessenta indivíduos, distribuídos nos três cultivos. Um total 102 bandas foi amplificado, com uma porcentagem 52,0% polimorfismo em nível espécie média 6,8 alelos por primer ISSR. A do Índice Conteúdo Polimórfico (PIC) 0,55. Em relação aos índices gênica Nei (H)...
Hydroponic systems are known to provide a platform for uniform growth conditions until the reproductive stage. However, many plant species, including sunflower, show poor and survivability under conventional hydroponic due nutrient availability, hypoxia algal contamination. Thus, we tested various select system suitable screening of sunflower germplasm. Sunflower accessions showed better leaf gas exchange in newly-designed over systems. Selected were further engaged accession heat osmotic...
The Cattleya (Orchidaceae–Laeliinae subtribe) intergeneric hybrids, such as Brassolaeliocattleya (Blc.), have great ornamental value, due to their compact-size, with large and high color diversity of flowers. Artificial induction polyploidy brings agronomic, genetic benefits plants. Polyploidization efficiency depends on factors, the type antimitotic, polyploidization method, concentrations, exposure times explant. This study aimed develop a protocol polyploidize Blc. orchids, by testing two...