Consulta: creatorFacets:"Borges,Aline"
Registros recuperados: 7
Data/hora: 27/07/2024 02:48:20

A comparative genetic diversity assessment of industrial and household Brazilian cassava varieties using SSR markers
Provedor de dados: 53
Autores: Siqueira,Marcos Vinicius Bohrer Monteiro; Borges,Aline; Valle,Teresa Losada; Veasey,Elizabeth Ann.
This study was carried out in order to assess the genetic diversity of 20 cassava (Manihot esculenta Crantz) genotypes with high phenotypic performance using microsatellite markers. Two groups were considered for this study: eleven varieties for industrial uses and nine for household consumption. By using nine microsatellite primers, high polymorphism was identified in all the loci analyzed, with values reaching 100%. On average, 3.4 alleles per locus were found, with 0.371 the value estimated for the observed heterozygosity and 0.555 for gene diversity for the entire set of varieties. The genetic variability found in both varieties, cultivated on a large-scale in the South Center region of Brazil, is wide enough to allow the choice of divergent parental...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Manihot esculenta; Genetic diversity; Germplasm; Microsatellites.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052011000400003

CTAB methods for DNA extraction of sweetpotato for microsatellite analysis
Provedor de dados: 63
Autores: Borges,Aline; Rosa,Mariana Silva; Recchia,Gustavo Henrique; Queiroz-Silva,Jurema Rosa de; Bressan,Eduardo de Andrade; Veasey,Elizabeth Ann.
Microsatellite markers have proved to be useful in genetic diversity assessments of sweetpotato (Ipomoea batatas) but practical DNA extraction methods to ensure good quality and quantity DNA for these studies are yet to be established. This study compares the efficiency of three modified methodologies for DNA extraction of six sweetpotato landraces using the CTAB extraction buffer in regard to quantity and purity of DNA quantification and microsatellite band patterns. All methodologies yielded satisfactory results, but the method based in leaf tissue macerated in liquid nitrogen was deemed more adequate because of its simplicity and lower cost. However, the method based in dry leaf tissue was considered more advantageous, first because elicits...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ipomoea batatas; SSR; DNA isolation; Landraces; Protocol.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000400015

False-positive results in screening for metallo-β-lactamase are observed in isolates of Acinetobacter baumannii due to production of oxacilinases
Provedor de dados: 55
Autores: Martins,Andreza F.; Borges,Aline; Pagano,Mariana; Dalla-Costa,Libera Maria; Barth,Afonso L.
Tipo: Info:eu-repo/semantics/other
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702013000400021

Genetic characterization of cassava ( Manihot esculenta ) landraces   in Brazil assessed with simple sequence repeats
Provedor de dados: 74
Autores: Siqueira,Marcos V. B. M.; Queiroz-Silva,Jurema R.; Bressan,Eduardo A.; Borges,Aline; Pereira,Kayo J. C.; Pinto,José G.; Veasey,Elizabeth Ann.
Based on nine microsatellite loci, the aim of this study was to appraise the genetic diversity of 42 cassava ( Manihot esculenta ) landraces from selected regions in Brazil, and examine how this variety is distributed according to origin in several municipalities in the states of Minas Gerais, São Paulo, Mato Grosso do Sul, Amazonas and Mato Grosso. High diversity values were found among the five above-mentioned regions, with 3.3 alleles per locus on an average, a high percentage of polymorphic loci varying from 88.8% to 100%, an average of 0.265 for observed heterozygosity and 0.570 for gene diversity. Most genetic diversity was concentrated within the regions themselves ( H   S   = 0.52). Cluster analysis and principal component based scatter plotting...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Genetic diversity; Microsatellites; SSR markers; Traditional farming.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000100015

Genetic diversity in Brazilian sweet potato (Ipomoea batatas (L.) Lam., Solanales, Convolvulaceae) landraces assessed with microsatellite markers
Provedor de dados: 74
Autores: Veasey,Elizabeth Ann; Borges,Aline; Rosa,Mariana Silva; Queiroz-Silva,Jurema R.; Bressan,Eduardo de Andrade; Peroni,Nivaldo.
We used simple sequence repeat (SSR) markers to investigate the genetic diversity of 78 sweet potato (Ipomoea batatas) accessions (58 landraces and 20 putative clones) from traditional agricultural households from 19 local communities in the Vale do Ribeira, São Paulo, Brazil. Eight SSR loci were assessed using 6% (w/v) polyacrylamide gels stained with silver nitrate and the accessions genotyped considering the presence or absence of bands. The results were subjected to analysis of molecular variance (AMOVA), and cluster and principal coordinate analyses. Spatial structure was assessed using Mantel's test to compare genetic and geographic distances. Each primer pair generated between three and ten clearly scorable polymorphic fragments. Cluster analyses...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Genetic variability; Landraces; SSR; Traditional agriculture; Vale do Ribeira.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000400020

Phenology and morphological diversity of sweet potato (Ipomoea batatas) landraces of the Vale do Ribeira
Provedor de dados: 63
Autores: Veasey,Elizabeth Ann; Silva,Jurema Rosa de Queiroz; Rosa,Mariana Silva; Borges,Aline; Bressan,Eduardo de Andrade; Peroni,Nivaldo.
The phenotypic diversity of sweet potato (Ipomoea batatas) landraces was assessed using morphological traits, verifying how this diversity is distributed among the households and settlements of the Vale do Ribeira, Brazil. A total of 74 accessions, involving 53 landraces, collected from 30 households distributed among 18 settlements that practice traditional agriculture in the municipalities of Iguape, Ilha Comprida, and Cananeia, as well as four commercial varieties acquired in markets of Iguape and Piracicaba, were evaluated under an ex situ experimental condition in Piracicaba, SP, Brazil. Nine phenological and floral descriptors, nine morphological vegetative aerial descriptors and five storage root traits were recorded. The 14 aerial vegetative and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Local varieties; Morphology; Phenotypic diversity; Traditional agriculture; Variability.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000400013

Processos evolutivos e a origem das plantas cultivadas
Provedor de dados: 65
Autores: Veasey,Elizabeth Ann; Piotto,Fernando Angelo; Nascimento,Wellington Ferreira do; Rodrigues,Jucelene Fernandes; Mezette,Thiago Fonseca; Borges,Aline; Biguzzi,Felipe Almeida; Santos,Fernanda Raquel Camilo dos; Sobierajski,Graciela da Rocha; Recchia,Gustavo Henrique; Mistro,Julio César.
A evolução das plantas cultivadas, que teve início há cerca de 13.000 anos, está sujeita aos mesmos processos evolutivos naturais, aliada à ação do homem de forma consciente ou inconsciente, levando à domesticação. Nesta revisão, são apresentados os principais fatores evolutivos, tais como mutação, hibridação, migração, seleção e deriva genética, que, de alguma maneira, estão envolvidos com a origem, evolução e domesticação de plantas cultivadas. São apresentados também exemplos de como esses processos influenciaram na diversidade intra e interespecífica de plantas cultivadas, com o aparecimento de novas variedades ou mesmo de novas espécies. De modo geral, tais processos atuaram na ampliação, na manutenção, bem como na redução da variabilidade genética...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Domesticação de plantas; Mutação; Hibridação; Migração; Seleção; Deriva genética.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011000700018