Consulta: creatorFacets:"Ianella,Patrícia"
Registros recuperados: 3
Data/hora: 10/06/2024 13:32:44

D-loop haplotype diversity in Brazilian horse breeds
Provedor de dados: 74
Autores: Ianella,Patrícia; Albuquerque,Maria do Socorro Maués; Paiva,Samuel Rezende; Egito,Andréa Alves do; Almeida,Leonardo Daniel; Sereno,Fabiana T. P. S.; Carvalho,Luiz Felipe Ramos; Mariante,Arthur da Silva; McManus,Concepta Margaret.
Abstract The first horses were brought to Brazil by the colonizers after 1534. Over the centuries, these animals evolved and adapted to local environmental conditions usually unsuitable for exotic breeds, thereby originating locally adapted Brazilian breeds. The present work represents the first description of maternal genetic diversity in these horse breeds based on D-loop sequences. A D-Loop HSV-I fragment of 252 bp, from 141 horses belonging to ten Brazilian breeds / genetic groups (locally adapted and specialized breeds) were analysed. Thirty-five different haplotypes belonging to 18 haplogroups were identified with 33 polymorphic sites. Haplotype diversity (varying from 0.20 to 0.96) and nucleotide diversity (varying from 0.0039 to 0.0239) was lower...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mitochondrial DNA; Genetic characterization; Equus caballus; Locally adapted breeds; Animal genetic resources.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000400604

Detection and evaluation of selection signatures in sheep
Provedor de dados: 86
Autores: Paim,Tiago do Prado; Ianella,Patrícia; Paiva,Samuel Rezende; Caetano,Alexandre Rodrigues; Pimentel,Concepta Margaret McManus.
Abstract: The recent development of genome-wide single nucleotide polymorphism (SNP) arrays made it possible to carry out several studies with different species. The selection process can increase or reduce allelic (or genic) frequencies at specific loci in the genome, besides dragging neighboring alleles in the chromosome. This way, genomic regions with increased frequencies of specific alleles are formed, caracterizing selection signatures or selective sweeps. The detection of these signatures is important to characterize genetic resources, as well as to identify genes or regions involved in the control and expression of important production and economic traits. Sheep are an important species for theses studies as they are dispersed worldwide and have...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ovis aries; Analysis software; Animal genetic resources; Genetic improvement; Genomics; Molecular genetics; SNP markers.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000500527

Patterns of genetic diversity of local pig populations in the State of Pernambuco, Brazil
Provedor de dados: 96
Autores: Silva,Elizabete Cristina da; Dutra Junior,Wilson Moreira; Ianella,Patrícia; Gomes Filho,Manoel Adrião; Oliveira,Cláudio José Parro de; Ferreira,Débora Nathália de Moura; Caetano,Alexandre Rodrigues; Paiva,Samuel Rezende.
This study estimated the genetic diversity and structure of 12 genetic groups (GG) of locally adapted and specialized pigs in the state of Pernambuco using 22 microsatellite markers. Nine locally adapted breeds (Baé, Caruncho, Canastra, Canastrão, Mamelado, Moura, Nilo, Piau and UDB (Undefined Breed)) and 3 specialized breeds (Duroc, Landrace and Large White), totaling 190 animals, were analyzed. The Analysis of Molecular Variance (AMOVA) showed that 3.2% of the total variation was due to differences between genetic groups, and 3.6% to differences between local and commercial pigs. One hundred and ninety eight alleles were identified and apart from the Large White breed, all GG presented Hardy-Weinberg Equilibrium deviations for some loci. The total and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal genetics resources; Genetic variability; Microsatellites loci; Sus Scrofa.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000800010