Research Article

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3/8/2017
Alleles; DNA, Plant; Expressed sequence tags; Genetic variation; Heterozygote; Microsatellite Repeats; Polymorphism, Genetic; Reproduction; Saccharum

The reduction in sugarcane productivity in subsequent cutting stages may be related to a gradual decrease of the allele number and mean observed heterozygosity (H) in the sugarcane ratoon. This hypothesis was tested assessing the number of alleles and H values in 10 expressed sequence tag microsatellites (Est-SSR loci) of the sugarcane varieties RB72454 and RB867515 in different cutting stages ... more

R. Augusto; R.C. Maranho; C.A. Mangolin; J.C.Bespalho Filho; M.F.P.S. Machado
4/5/2017
Chromosomes, Plant; DNA methylation; DNA, Plant; Epigenesis, Genetic; Evolution, Molecular; Genetic variation; Genome, Plant; Microsatellite Repeats; Polyploidy; Random Amplified Polymorphic DNA Technique; Triticum

We used the conventional and methylation-sensitive randomly amplified polymorphic DNA (RAPD) and inter-simple sequence repeat (ISSR) analyses to assess genome-wide changes and explore the relationships between genetic and epigenetic variations among individuals of a newly synthesized allohexaploid wheat line whose genomic constitution is identical to that of the natural common wheat, compared ... more

T. Qiu; Y.Z. Dong; X.M. Yu; N. Zhao; Y.F. Yang
4/5/2017
DNA Primers; DNA, Plant; Genetic markers; Genetic variation; Mangifera; Microsatellite Repeats; Pakistan; Phylogeny; Plant breeding; Plant Leaves; Polymorphism, Genetic

Understanding the genetic diversity of different Pakistani mango varieties is important for germplasm management and varietal characterization. Microsatellites are efficient and highly polymorphic markers for comparative genome mapping, and were used in the present study to determine the genetic relatedness and variability among 15 indigenous mango cultivars (Mangifera indica L.). Overall, 181 ... more

T. Nazish; G. Shabbir; A. Ali; S. Sami-Ul-Allah; M. Naeem; M. Javed; S. Batool; H. Arshad; S.B. Hussain; K. Aslam; R. Seher; M. Tahir; M. Baber
4/5/2017
Alleles; Biomass; Genetic variation; Introduced species; Microsatellite Repeats; Sapium; Trees; United States

Chinese tallow (Triadica sebifera) is an important crop and ornamental tree. After it was introduced into the USA, it gradually became a noxious invasive tree in south-eastern America since the middle of the 1900s. Because only six microsatellites were reported previously in T. sebifera, to better understand the genetic diversity and population dynamics of such species, we reported here 28 new ... more

Y.F. Zhuang; Z.F. Wang; L.F. Wu
5/31/2017
Analysis of variance; Annona; Data Interpretation, Statistical; Fruit; Genetic variation; Phenotype; Plant breeding; Quantitative Trait, Heritable

Repeatability studies on fruit species are of great importance to identify the minimum number of measurements necessary to accurately select superior genotypes. This study aimed to identify the most efficient method to estimate the repeatability coefficient (r) and predict the minimum number of measurements needed for a more accurate evaluation of soursop (Annona muricata L.) genotypes based ... more

C.F.B. Sánchez; P.E. Teodoro; S. Londoño; L.A. Silva; L.A. Peixoto; L.L. Bhering
12/02/2016
cluster analysis; Genes, Plant; Manihot; Phylogeny; Polymorphism, Single Nucleotide; Sequence alignment; Sequence Analysis, DNA; Starch

The distribution and frequency of single nucleotide polymorphisms (SNPs) can help to understand changes associated with characteristics of interest. We aimed to evaluate nucleotide diversity in six genes involved in starch biosynthesis in cassava using a panel of 96 unrelated accessions. The genes were sequenced, aligned, and used to obtain values for nucleotide diversity (π), segregating ... more

L.M. Vasconcelos; A.C. Brito; C.D. Carmo; E.J. Oliveira
06/30/2020
Banana; cluster analysis; Drought resistance; Genotypes

Banana is an importment international economical crop, but drought is the most significant environmental stress in banana intrustry. Previous studies on banana drought tolerance evaluated just a few indicators, such as malondialdehyde (MDA) and plasma membrane permeability (PMP), with little or no systematic morphological and physiological information. We examined ... more

R. Wang; Y. Xu; X.G. Li; Y. Shen; L.X. Wang; Z.S. Xie
1/23/2017
Antiviral Agents; Brazil; Fever; Genotype; HIV Infections; Humans; Incidence; Pyrophosphatases; Zidovudine

Zidovudine, the antiretroviral drug used to treat HIV infection, commonly causes adverse effects, such as systemic fever and gastrointestinal alterations. In the present study, the potential role of inosine triphosphate pyrophosphatase (ITPA) gene variant on the incidence of adverse events during antiretroviral therapy (ART) of HIV with zidovudine was discussed. Individuals from Northeastern ... more

A.V.C. Coelho; S.P.S. Silva; L. Zandonà; G. Stocco; G. Decorti; S. Crovella
2/23/2017
Adolescent; Adult; Brazil; Cross-Sectional Studies; Cystathionine beta-Synthase; Epistasis, Genetic; Female; Folic acid; Gene frequency; Genetic predisposition to disease; Genotype; Heterozygote; Homocysteine; Homozygote; Humans; Linkage disequilibrium; male; Methylenetetrahydrofolate Reductase (NADPH2); Middle Aged; Polymorphism, Single Nucleotide; Risk factors; Thrombophilia; Thrombosis; Vitamin B 12; Young Adult

High plasma homocysteine (Hcy) ​​levels may be responsible for vaso-occlusive episodes and may have acquired and/or genetic causes. This cross-sectional study aimed to investigate the role of methylenetetrahydrofolate reductase (MTHFR; C677T; A1298C) and cystathionine-β-synthase (CBS; T833C/844ins68, G919A) polymorphisms in serum levels of folic acid, vitamin B12 and Hcy, and to verify a ... more

F.M. Amaral; A.L. Miranda-Vilela; G.S. Lordelo; I.F. Ribeiro; M.B. Daldegan; C.K. Grisolia
2/23/2017
Ascomycota; Brazil; Carica; Crops, Agricultural; Disease resistance; Fruit; Genotype; Hybrid Vigor; Hybridization, Genetic; Inbreeding; Plant breeding; Plant Diseases; Plant Leaves; Reproducibility of Results

Papaya crop is important to Brazilian agribusiness. However, the expansion of papaya cultivation in the country is affected by the absence of commercial cultivars presenting good disease resistance. The black-spot caused by the fungus Asperisporium caricae is the most damaging foliar disease affecting Brazilian papaya crops. The use of genetically resistant cultivars is a promising strategy to ... more

T.P.S. Poltronieri; S.F. Silveira; M. Vivas; S. Catarina; D.F.M. Cortes; A.O.N. Azevedo; M.G. Pereira

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