Research Article

Related GMR Articles

DNA, Plant; Evolution, Molecular; Expressed sequence tags; Genetic variation; Genome, Plant; Microsatellite Repeats; Phylogeny; Saccharum

We analyzed 80 plants of the sugarcane (Saccharum spp) variety 'RB867515' in order to investigate its diversity and genetic structure at the molecular level. Four simple sequence repeat (SSR) loci (UGSM51, SMC1237, SEGMS1069, and UGSM38) and five expressed sequence tag (EST)-SSR loci (ESTA68, ESTB92, ESTB145, ESTC66, and ESTC84) were used as molecular markers. The polymorphic loci rate was 66. ... more

G.B. Maranho; R.C. Maranho; R. Desordi; A.F. das Neves; C.A. Mangolin; M.F.P.S. Machado
Animal Distribution; Animals; Endangered species; Genetic Drift; Genetic Loci; Microsatellite Repeats; Penaeidae; Phylogeny; Polymorphism, Genetic

Fenneropenaeus penicillatus, which is on the Red List of Endangered Species for China, is an important shrimp species. However, there is not enough genetic information on F. penicillatus for conservation and management purposes. Ten microsatellite markers were used to analyze the genetic diversity, genetic differentiation, and population structure of F. penicillatus to provide scientific ... more

Y.Y. Cao; J.B. Shangguan; Z.B. Li
Animals; Chickens; Epitopes; Interferon-gamma; Interleukins; Phylogeny; Poultry; Protein Conformation; Toll-Like Receptors

Poultry production is faced with different types of stresses that are responsible for issues of animal welfare as well as for economic losses. Moreover, the immunity decreases when animals are stressed. In silico analyses are important in reducing the cost and in increasing the accuracy of scientific results. A bioinformatics tool was used to perform ontology studies on 15 different ... more

L.J. Lara; A.P. Peconick; É.J. Fassani; A.M.P. Júnior; P.R.B. Chalfun; D.L. Raymundo; T.A. Barçante; J.M. de P. Barçante
Animals; Brazil; Dogs; Feces; Genome, Viral; Parvoviridae Infections; Parvovirus, Canine; Phylogeny; Polymorphism, Genetic; Recombination, Genetic

With the objective of characterizing Canine parvovirus (CPV) from some suspected fecal samples of dogs collected from the Veterinarian Hospital in Belém city, five positive samples were found by PCR assay and an update molecular characterization was provided of the CPV-2 circulation in Belém. Through sequencing of the complete DNA sequences (NS1, NS2, VP1, and VP2 genes), the CPV-2 strain was ... more

S.P. Silva; L.N.P.P. Silva; E.D.L. Rodrigues; J.F. Cardoso; F.N. Tavares; W.M. Souza; C.M.P. Santos; F.M.S. Martins; I.S. Jesus; T.C. Brito; T.P.C. Moura; M.R.T. Nunes; L.M.N. Casseb; S. Filho; A.R. Casseb
Evolution, Molecular; Mimiviridae; Models, Genetic; Phylogeny; Protein Biosynthesis; Sequence Homology; Viral Proteins

The natural history of mimiviruses (i.e., viruses that are members of the Mimivirus genus) is a challenge for modern biology. A new domain of life to include these organisms has been proposed from analysis of gene conservation. We analyzed the evolutionary relationship of proteins involved in the translation system, and our data show that mimiviruses are a sister group of Eukarya. New data ... more

V.M. Marcelino; M.V.P.C. Espinola; V. Serrano-Solis; S.T. Farias
Alleles; Animals; Bivalvia; Evolution, Molecular; Genetics, Population; Heterozygote; High-Throughput Nucleotide Sequencing; Microsatellite Repeats; Polymorphism, Genetic

Solen grandis is an important economic and overexploited bivalve species. In order to perform its fine-scale genetic analyses, 105 pairs of microsatellites with polymorphism were identified through Illumina Hiseq platform and bioinformatic assembly technology in this study. The estimated fragment size ranged from 100 to 268 bp and the number of alleles per locus varied between 2 and 23. ... more

Y.W. Feng; H.L. Jiang; Y.T. Liu; X.P. Wu; X.Q. Liu; X.M. Wei
Animals; Bayes Theorem; Breeding; Genetic markers; Genomics; Genotype; Models, Genetic; Polymorphism, Single Nucleotide; Predictive Value of Tests; Quantitative trait loci; Regression Analysis; Selection, Genetic

Genomic selection (GS) is a variant of marker-assisted selection, in which genetic markers covering the whole genome predict individual genetic merits for breeding. GS increases the accuracy of breeding values (BV) prediction. Although a variety of statistical models have been proposed to estimate BV in GS, few methodologies have examined statistical challenges based on non-normal phenotypic ... more

M. Nascimento; F.F.E. Silva; M.D.V. de Resende; C.D. Cruz; A.C.C. Nascimento; J.M.S. Viana; C.F. Azevedo; L.M.A. Barroso
Animals; Bayes Theorem; Body weight; Cattle; Female; male; maternal inheritance; Quantitative Trait, Heritable; Selective breeding

This study was carried out to investigate (co)variance components and genetic parameters for growth traits in beef cattle using a multi-trait model by Bayesian methods. Genetic and residual (co)variances and parameters were estimated for weights at standard ages of 120 (W120), 210 (W210), 365 (W365), and 450 days (W450), and for pre- and post-weaning daily weight gain (preWWG and postWWG) in ... more

F.B. Lopes; J.L. Ferreira; R.B. Lobo; G.J.M. Rosa
Animals; DNA Barcoding, Taxonomic; DNA, Ribosomal Spacer; Genome, Insect; Hymenoptera; Lepidoptera; Microsatellite Repeats

In Brazil, the species Diatraea flavipennella and D. saccharalis play an important role in the sugar and alcohol agribusiness by causing many damages in sugarcane fields. The egg, larva, pupa, and adult stages are very morphologically similar between these species, and the identification can be confused. The internal transcribed spacer 2 (ITS 2) from ribosomal DNA has important features as ... more

M.S.Regueira Neto; R.P. Barros; M.A.J. Morais; V.Q. Balbino; V. Loreto
Animals; Evolution, Molecular; Hybridization, Genetic; Lepidoptera; Polymorphism, Genetic

Helicoverpa armigera is the most significant pest of agriculture in Asia, Europe, Africa, and Australasia, causing damage to crops greater than US$2 billion annually and until 2013 it was not detected in Brazil. Helicoverpa zea is restricted to the American continent and is important to corn and a secondary pest of cotton and tomatoes. The wide range of crops exploited by H. armigera (mainly ... more

H.M. Lopes; C.S. Bastos; L.S. Boiteux; J. Foresti; F.A. Suinaga