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| Registros recuperados: 14 | |
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| Sánchez Velázquez, Eber Josué. |
| Brevipalpus phoenicis es considerado un vector importante del Citrus leprosis virus C (CiLV-C) agente causal de la leprosis tipo citoplásmico, enfermedad que afecta cítricos de variedades dulces principalmente. En este estudio se obtuvieron muestras de Brevipalpus phoenicis en huertos de naranja dulce (Citrus sinensis) de ocho y 12 localidades de Brasil y México, respectivamente. La estructura poblacional, la variación genética, así como el análisis filogenético de las muestras recolectadas fueron estudiados a partir de secuencias de nucleótidos del gen citocromo oxidasa subunidad I (COI). Se observó la existencia de dos grupos morfológicos (“B” y “C”) en muestras de ambos países, siendo éste el primer reporte del grupo “C” en el territorio mexicano. La... |
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Palavras-chave: Morfoespecies; Red de haplotipos; AMOVA; Morphospecies; Haplotype network; Entomología y Acarología; Maestría. |
| Ano: 2014 |
URL: http://hdl.handle.net/10521/2222 |
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| López Soto,Eduardo Javier; Catanesi,Cecilia Inés. |
| Several single nucleotide polymorphisms (SNPs) in the Mu Opioid Receptor gene (OPRM1) have been identified and associated with a wide variety of clinical phenotypes related both to pain sensitivity and analgesic requirements. The A118G and other potentially functional OPRM1 SNPs show significant differences in their allele distributions among populations. However, they have not been properly addressed in a population genetic analysis. Population stratification could lead to erroneous conclusions when they are not taken into account in association studies. The aim of our study was to analyze OPRM1 SNP variability by comparing population samples of the International Hap Map database and to analyze a new population sample from the city of Corrientes,... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: OPRM1; SNPs; A118G; AMOVA; Population genetics. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000200152 |
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| Oliveira,Joelliton Domingos de; Igarashi,Maria Luiza Silveira de Paiva; Machado,Théa Mírian Medeiros; Miretti,Marcos Mateo; Ferro,Jesus Aparecido; Contel,Eucleia Primo Betioli. |
| The genetic relationships and structure of fourteen goat (Capra hircus) populations were estimated based on genotyping data from 14 goat populations (n = 410 goats) at 13 microsatellite loci. We used analysis of molecular variance (AMOVA), principal component analysis (PCA) and F statistics (F IS, F IT and F ST) to evaluate the genetic diversity (Ho, He and ad) of the goats. Genetic distances between the 14 goat populations were calculated from allelic frequency data for the 13 microsatellite markers. Moderate differentiation was observed for the populations of the undefined breeds (including the Anglo-Nubian-M breed), the naturalized Brazilian breeds (Moxotó, Canindé), the exotic purebred breeds (Alpine, Saanen, Toggenbourg and Anglo-Nubian) and the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Goat; Microsatellite; Genetic distance; PCA; AMOVA; Genetic relationships; Genetic diversity; F statistics. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000300010 |
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| Liu,Yan-Qun; Qin,Li; li,Yu-Ping; Wang,Huan; Xia,Run-Xi; Qi,Yong-Hong; li,Xi-Sheng; Lu,Cheng; Xiang,Zhong-Huai. |
| The genetic diversity and genetic structure of three Chinese silkworm species Bombyx mori L., Antheraea pernyi Guérin-Meneville and Samia cynthia ricini Donovan were comparatively assessed based on RAPD markers. At the species level, A. pernyi and B. mori showed high levels of genetic diversity, whereas S. cynthia ricini showed low level of genetic diversity. However, at the strain level, A. pernyi had relatively highest genetic diversity and B. mori had lowest genetic diversity. Analysis of molecular variance (AMOVA) suggested that 60% and 72% of genetic variation resided within strains in A. pernyi and S. cynthia ricini, respectively, whereas only 16% of genetic variation occurred within strains in B. mori. In UPGMA dendrogram, individuals of A. pernyi... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: RAPD; Genetic variation; AMOVA; Dendrogram. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000600019 |
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| Corrêa,Luiz Claudio; Santos,Carlos Antonio Fernandes; Lima,Giuseppina Pace Pereira; Rodrigues,Marciene Amorim; Costa,Tuany Priscila Pereira. |
| Espécies do gênero Psidium, como goiabeira e araçazeiros, são economicamente importantes e têm como área de diversidade genética primária o Brasil. Foram determinadas as relações genéticas, com base no marcador AFLP, para acessos do Banco Ativo de Germoplasma (BAG) de Psidium da Embrapa Semiárido, para orientar trabalhos de melhoramento e de manejo de recursos genéticos do gênero. Foram analisados 88 acessos, sendo 64 de goiabeira e 24 de araçazeiros, coletados em dez Estados brasileiros, adotando-se para agrupamento o dendrograma UPGMA, considerando a matriz de similaridade do coeficiente de Jaccard de 149 bandas polimórficas de AFLP de 16 combinações dos iniciadores EcoRI e MseI. A análise da variância de dados moleculares foi realizada considerando a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Psidium; Banco ativo de germoplasma; Melhoramento vegetal; AMOVA. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452011000300021 |
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| Egito,Andréa Alves do; Fuck,Beatriz Helena; McManus,Concepta; Paiva,Samuel Rezende; Albuquerque,Maria do Socorro Maués; Santos,Sandra Aparecida; Abreu,Urbano Gomes Pinto de; Silva,Joaquim Augusto da; Sereno,Fabiana Tavares Pires de Souza; Mariante,Arthur da Silva. |
| Blood samples were collected from Pantaneiro Horses in five regions of Mato Grosso do Sul and Mato Grosso States. Arabian, Mangalarga Marchador and Thoroughbred were also included to estimate genetic distances and the existing variability among and within these breeds by RAPD-PCR (Random Amplified Polymorphic DNA - Polymerase Chain Reaction) molecular markers. From 146 primers, 13 were chosen for amplification and 44 polymorphic bands were generated. The analysis of molecular variance (AMOVA) indicated that the greatest portion of detected variability was due to differences between individuals within populations (75.47%). Analysis of the genetic variability between pairs of populations presented higher estimates for the five Pantaneiro populations with the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: AMOVA; Arabian; English Thoroughbred; Genetic diversity; Genetic resource; Mangalarga Marchador. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982007000400007 |
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| Bressan,Eduardo de Andrade; Briner Neto,Thiago; Zucchi,Maria Imaculada; Rabello,Ronaldo José; Veasey,Elizabeth Ann. |
| Traditional growers of the Vale do Ribeira, São Paulo State, grow and make use of several D. alata landraces. This study assessed the genetic diversity of 16 landraces, using isozymatic and morphological markers and comparing them with 19 commercial varieties of D. alata. Their distribution in different levels of organization such as households and communities of the Vale do Ribeira was evaluated. Isozymatic analyses were performed with polyacrylamide (six systems) and starch gels (one system), while the morphological analyses were carried out with 24 traits. Due to the polyploid nature of this species, the isozymatic bands were scored as binary data. Morphological traits were also scored as binary data. Principal coordinates and cluster analyses were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: AMOVA; Traditional agriculture; Genetic diversity; Water yam. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000400016 |
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| Singh,Diwakar; Radhakrishnan,T.; Kumar,Vinod; Bagwan,N.B.; Basu,M.S.; Dobaria,J.R.; Mishra,Gyan P.; Chanda,S.V.. |
| Aflatoxin contamination of peanut, due to infection by Aspergillus flavus, is a major problem of rain-fed agriculture in India. In the present study, molecular characterisation of 187 Aspergillus flavus isolates, which were sampled from the peanut fields of Gujarat state in India, was performed using AFLP markers. On a pooled cluster analysis, the markers could successfully discriminate among the ‘A’, ‘B’ and ‘G’ group A. flavus isolates. PCoA analysis also showed equivalent results to the cluster analysis. Most of the isolates from one district could be clustered together, which indicated genetic similarity among the isolates. Further, a lot of genetic variability was observed within a district and within a group. The results of AMOVA test revealed that... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aflatoxin; AMOVA; ELISA; Genetic diversity; Groundnut; PCA. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000300673 |
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| Carrasco,Basilio; Díaz,Carole; Moya,Mario; Gebauer,Marlene; García-González,Rolando. |
| The genetic characterization of 29 elite Japanese plum cultivars (Prunus salicina) and 4 Prunus cultivars was carried out by analyzing 97 Simple Sequence Repeat (SSR) alleles and 232 binary Inter Simple Sequence Repeat (ISSR) loci. A high level of genetic variability was found for these two molecular markers among the Japanese plum cultivars compared to other Prunus species. On average, the variability found by analyzing the SSR alleles were Na = 12.1, Ne = 5.2, Ho = 0.9, He = 0.8 and F= -0.127, whereas ISSR yielded values of h = 0.15 and I = 0.27. The genetic relationship among cultivars was estimated with Principal Coordinate Analysis (PCA) and a Bayesian clustering approach using the software program Structure. This program identified two subgroups... |
| Tipo: Journal article |
Palavras-chave: AMOVA; Bayesian analysis; Genetic distance; PCA; Plum; Structure. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202012000300012 |
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| Registros recuperados: 14 | |
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