Consulta: subjectFacets:"Genealogy"
Registros recuperados: 4
Data/hora: 02/06/2024 02:40:27

Genetic divergence of rubber tree estimated by multivariate techniques and microsatellite markers
Provedor de dados: 74
Autores: Gouvêa,Lígia Regina Lima; Rubiano,Luciana Benchimol; Chioratto,Alisson Fernando; Zucchi,Maria Imaculada; Gonçalves,Paulo de Souza.
Genetic diversity of 60 Hevea genotypes, consisting of Asiatic, Amazonian, African and IAC clones, and pertaining to the genetic breeding program of the Agronomic Institute (IAC), Brazil, was estimated. Analyses were based on phenotypic multivariate parameters and microsatellites. Five agronomic descriptors were employed in multivariate procedures, such as Standard Euclidian Distance, Tocher clustering and principal component analysis. Genetic variability among the genotypes was estimated with 68 selected polymorphic SSRs, by way of Modified Rogers Genetic Distance and UPGMA clustering. Structure software in a Bayesian approach was used in discriminating among groups. Genetic diversity was estimated through Nei's statistics. The genotypes were clustered...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Genealogy; Genetic diversity; Hevea brasiliensis; Multivariate analysis; SSRs.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000200018

Characterization and genetic diversity analysis of cotton cultivars using microsatellites
Provedor de dados: 74
Autores: Bertini,Cândida H.C. de Magalhães; Schuster,Ivan; Sediyama,Tocio; Barros,Everaldo Gonçalves de; Moreira,Maurílio Alves.
Genetic diversity and the relationship between varieties are of great importance for cotton breeding. Our work was designed to estimate the informativeness of the cotton (Gossypium hirsutum L.) simple sequence repeat (SSR) microsatellite locus and to estimate the genetic distance between 53 cotton cultivars as well as to select a set of SSR primers able to differentiate between the 53 cotton cultivars studied. After extracting DNA from the 53 cultivars and characterized it using 31 pairs of SSR primers we obtained a total of 66 alleles with an average of 2.13 alleles per SSR locus and values of polymorphism information content (PIC) varying from 0.18 to 0.62, the dissimilarity coefficient varying from zero to 0.41. Statistical analysis using the unweighted...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fingerprinting; Gossypium hirsutum L.; Genealogy; Molecular markers.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572006000200021

Avian infectious bronchitis virus in Brazil: a highly complex virus meets a highly susceptible host population
Provedor de dados: 89
Autores: Brandão,PE.
Infectious bronchitis (IB) is a highly aggressive disease for poultry in terms of symptoms and economic losses, and the control of this disease is difficult if flocks are not protected against type-specific challenges by the Avian infectious bronchitis virus (IBV). This article summarizes data presented by the author at the Workshop on Infectious Bronchitis 2009 on IB and IBV, including future developments on the field.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: IBV; Genealogy; Pathogeny; Epidemiology.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2010000200008

Diversity and genetic relatedness among genotypes of Vitis spp. using microsatellite molecular markers
Provedor de dados: 94
Autores: Leão,Patrícia Coelho de Souza; Cruz,Cosme Damião; Motoike,Sérgio Yoshimitsu.
The purpose of this research was to study the genetic diversity and genetic relatedness of 60 genotypes of grapevines derived from the Germplasm Bank of Embrapa Semiárido, Juazeiro, BA, Brazil. Seven previously characterized microsatellite markers were used: VVS2, VVMD5, VVMD7, VVMD27, VVMD3, ssrVrZAG79 and ssrVrZAG62. The expected heterozygosity (He) and polymorphic information content (PIC) were calculated, and the cluster analysis were processed to generate a dendrogram using the algorithm UPGMA. The He ranged from 81.8% to 88.1%, with a mean of 84.8%. The loci VrZAG79 and VVMD7 were the most informative, with a PIC of 87 and 86%, respectively, while VrZAG62 was the least informative, with a PIC value of 80%. Cluster analysis by UPGMA method allowed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Grape; Multivariate analysis; Genealogy; SSR.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452013000300017