Brazil is considered one of the domestication centers of cassava (Manihot esculenta), containing a large part of the biological diversity and traditional knowledge of the species. The aim of the present study was to evaluate the genetic diversity of cassava landraces grown by farmers in the north of Mato Grosso State, Brazil, using inter simple sequence repeat (ISSR) molecular markers. The stud...

A number of clustering algorithms are available to depict population genetic structure (PGS) with genomic data; however, there is no consensus on which methods the best performing ones. We conducted a simulation study three PGS scenarios subpopulations k = 2, 5 and 10, recreating several maize genomes as model to: (1) compare well-known methods: UPGMA, k-means and, Bayesian method (BM); (2) ass...

We have analysed the efficiency of all mitochondrial protein coding genes and six nuclear markers (Adora3, Adrb2, Bdnf, Irbp, Rag2 and Vwf) in reconstructing and statistically supporting known amniote groups (murines, rodents, primates, eutherians, metatherians, therians). The efficiencies of maximum likelihood, Bayesian inference, maximum parsimony, neighbor-joining and UPGMA were also evaluat...

Objectives. We aimed to explore the impact of gut microbiota in coronary heart disease (CHD) patients through high-throughput sequencing. Methods. A total of 29 CHD in-hospital patients and 35 healthy volunteers as controls were included. Nucleic acids were extracted from fecal samples, followed by α diversity and principal coordinate analysis (PCoA). Based on unweighted UniFrac distance matric...

One of the most fundamental aspects of bioinformatics in understanding sequence evolution and relationships is molecular phylogenetics, in which the evolutionary histories of living organisms are represented by finite directed (weighted) graphs, in particular, directed (weighted) trees. There are basically two types of phylogenetic methods, distance based methods and character based methods. Di...

The aim of this work was to analyze genetic variability in 18 populations of Maytenus ilicifolia, and representatives of Maytenus aquifolia and Maytenus evonymoidis, collected in the states of Mato Grosso do Sul, Paraná, Santa Catarina and Rio Grande do Sul, using RAPD molecular markers. Considering total samples of the three species, 263 amplified fragments were identified, of which 72.2% show...

-UTCE is a platform for ultrametric tree construction and tree evaluation. Phylogenetic tree can be used by biologists to observe the relationship between species, and the ultrametric tree is a popular model which is assumed that the rate of evolution is constant. UPGMA is one of well-know ultrametric tree constructing algorithm. However, UPGMA is a heuristic algorithm and can not guarantee the...


 This study analyzed the genetic diversity in Coffea canephora genotypes by univariate and multivariate statistical analysis, based on concentrations of macro- micronutrients coffee leaves stages pre-flowering grain filling. The experiment was arranged randomized blocks with three replications, a 42x2 factorial design, which factor one represented evaluated two periods leaf sampling, i.e....

background: garlic is a valuable medicinal plant with variability in desirable morphological and physiological characteristics. the analysis of genetic diversity plays an important role in breeding programs. the rapd technique could be very effective in detecting genetic variation in garlic.  objective: the objective of the present work was to detect molecular polymorphism among iranian garlic ...