Research Article

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9/21/2017
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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
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Animals; Brazil; Breeding; Cattle; Gene frequency; Genetic markers; Leptin; Polymorphism, Single Nucleotide; Promoter Regions, Genetic; Red Meat; Sequence Analysis, DNA

Brazil is the world's largest producer of beef cattle; however, the quality of its herds needs to be improved. The use of molecular markers as auxiliary tools in selecting animals for reproduction with high pattern for beef production would significantly improve the quality of the final beef product in Brazil. The leptin gene has been demonstrated to be an excellent candidate gene for bovine ... more

R.C. Guimarães; J.S.N. Azevedo; S.C. Corrêa; J.E.G. Campelo; E.M. Barbosa; E.C. Gonçalves; S. Filho
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Animals; Bayes Theorem; Brazil; Evolution, Molecular; Fishes; Genetic variation; Genetics, Population; Microsatellite Repeats

Genetic variability is one of the important criteria for species conservation decisions. This study aimed to analyze the genetic diversity and the population differentiation of two natural populations of Arapaima gigas, a species with a long history of being commercially exploited. We collected 87 samples of A. gigas from Grande Curuai Lake and Paru Lake, located in the Lower Amazon region of ... more

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The Red Sindhi cattle breed was imported to Brazil in small numbers. Nowadays, the herds of this breed are distributed in the Northeast, Southeast and Midwest regions of the country. In this study, DNA samples of animals originating from 15 herds in the Northeast and Southeast regions have been analyzed to obtain the ancestry proportions, and to gain a better understanding of the current ... more

J.C.C. Panetto; M.V.G.B. Silva; R.M.H. Leite; M.A. Machado; F.A.T. Bruneli; D.R.L. Reis; M.G.C.D. Peixoto; R.S. Verneque
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Animals; Cattle; Embryo Culture Techniques; Female; Gene Expression Regulation, Developmental; GRB10 Adaptor Protein; Point mutation; Polymorphism, Single Nucleotide; Quantitative trait loci; Sequence Analysis, DNA; Superovulation

The application of assisted reproductive technology in animal production benefits the economy and conservation of biological resources. Single nucleotide polymorphism (SNPs) was used as predictive markers for breeding and reproduction. In the present study, we examined the association between a SNP of the grb10 gene and superovulation traits in cattle. Sequencing results indicated a point ... more

Y. Wu; Z. Zhang; J.B. Zhang; Q. Deng
12/02/2016
Animal Shells; Animals; Bivalvia; Breeding; Evolution, Molecular; Female; Fresh Water; Genetic variation; Genetics, Population; male; Microsatellite Repeats; Phenotype; Phylogeny; Quantitative trait loci

Four Hyriopsis cumingii populations, a breeding population (BP), a cultured population (FP), two wild populations from Poyang Lake (PY) and Dongting Lake (DT), and an H. schlegelii population were collected (JX), and the first filial generations (F1) were bred synchronously. The shell nacre polymorphisms, population genetic diversity, and genetic structures of the F1 of each population were ... more

L.M. Wu; Z.Y. Bai; X.J. Liu; C. Jin; H. Yin; J.L. Li
12/02/2016
Animals; Bayes Theorem; Biological evolution; Butterflies; Evolution, Molecular; Gene order; Genome, Insect; Genome, Mitochondrial; Likelihood Functions; Phylogeny

Pieridae is a butterfly family whose evolutionary history is poorly understood. Due to the difficulties in identifying morphological synapomorphies within the group and the scarcity of the fossil records, only a few studies on higher phylogeny of Pieridae have been reported to date. In this study, we describe the complete mitochondrial genomes of four pierid butterfly species (Aporia martineti ... more

Y. Cao; J.S. Hao; X.Y. Sun; B. Zheng; Q. Yang
3/16/2017
Animals; Base Sequence; Conserved sequence; Disease resistance; Evolution, Molecular; Genetic markers; Genetic variation; Genotype; Microsatellite Repeats; Phylogeny; Plant Diseases; Plant Proteins; Psidium; Tylenchoidea

Guava (Psidium guajava L.) crop is severely affected by the nematode Meloidogyne enterolobii. Native Psidium species have been reported as sources of resistance against this nematode. Knowledge on the molecular relationship between Psidium species based on plant resistance gene analogs (RGA) can be useful in the genetic breeding of guava for resistance to M. enterolobii. In this study, RGA ... more

L.R. Noia; A.C. Tuler; A. Ferreira; M.F.S. Ferreira
3/16/2017
Animals; China; DNA, Mitochondrial; Evolution, Molecular; Fishes; Genetics, Population; Haplotypes; Lakes; Phylogeny; Polymorphism, Genetic

Coilia ectenes is a commercially important fishery species in China. C. ectenes taihuensis is an endemic and dominant species found in Taihu Lake of China. When compared with C. ectenes, C. ectenes taihuensis lacks anadromous behavior, and can independently grow and reproduce in Taihu Lake. In this study, the mitochondrial DNA control region (D-loop) sequences were employed to investigate the ... more

J.J. Zhang; J.R. Duan; Y.F. Zhou; J.Y. Peng; D.A. Fang
4/20/2017
Animals; Chromosome banding; Chromosomes; Evolution, Molecular; Fishes; In Situ Hybridization, Fluorescence; Karyotype; Phylogeny

Sphyraena (barracudas) represents the only genus of the Sphyraenidae family and includes 27 species distributed into the tropical and subtropical oceanic regions. These pelagic predators can reach large sizes and, thus, attracting significant interest from commercial and sport fishing. Evolutionary data for this fish group, as well its chromosomal patterns, are very incipient. In the present ... more

R.X. Soares; M.B. Cioffi; L.A.C. Bertollo; A.T. Borges; G.W.W.F. Costa; W.F. Molina

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