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| Registros recuperados: 117 | |
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| Researchers in conservation biology and restoration ecology often work in partnership with local actors to increase the practical relevance of the knowledge they produce. Although an academic mode of knowledge production is essential in research for a better understanding of biological systems, it often fails to produce frameworks and methodologies having practical relevance that can be used in conservation and restoration programs. The involvement of researchers in collective plans of action is supposed to contribute to the production of a more contextualized form of knowledge. In this paper, we report our experience of partnership research in an ecological restoration project. We show that changing our mode of knowledge production to one that produces... |
| Tipo: Peer-Reviewed Insight |
Palavras-chave: Conservation biology; Genetic resources; Local seeds; Mode of knowledge production; Native species; Problem-finding; Pyrenees; Seed transfer zones; Stakeholders. |
| Ano: 2008 |
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| Di Lorenzo,Piera; Lancioni,Hovirag; Ceccobelli,Simone; Curcio,Ludovica; Panella,Francesco; Lasagna,Emiliano. |
| Over the last 20 years, the two uniparentally inherited marker systems, namely mitochondrial DNA and Y chromosome have been widely employed to solve questions about origin and prehistorical range expansions, demographic processes, both in humans and domestic animals. The mtDNA and the Y chromosome, with their unique patterns of inheritance, continue to be extremely important source of information. These markers played significant roles in farm animals in the evaluation of the genetic variation within- and among-breed strains and lines and have widely applied in the fields of linkage mapping, paternity tests, prediction of breeding values in genome-assisted selection, analysis of genetic diversity within breeds detection of population admixture, assessment... |
| Tipo: Journal article |
Palavras-chave: Animal breeding; Bovine domestication; Cattle genetic diversity; Genetic resources; Genome-assisted selection; Inherited marker systems. |
| Ano: 2016 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582016000500010 |
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| Piña-Escutia,José Luis; Vázquez-García,Luis Miguel; Arzate-Fernández,Amaury Martín. |
| Tigridia pavonia (L.f.) DC. is one of the important phytogenetic resources of México. This species is used as ornamental, food and medicinal purposes. Despite its ornamental and economic potential, there is little information about the genetic variability. In this study, randomly amplified polymorphic DNA (RAPD) primers of 10, 15 and 20 bases were used to assess the level of genetic variation among nine botanical varieties of Tigridia pavoniacollected in three localities within State of México. The total number fragments, polymorphic fragments, percentage of polymorphism and resolving power were greater for 15 base (55, 52, 94.5 and 5, respectively) and 20 base (47, 45, 95.7 and 3.8, respectively), in comparison with those obtained from 10 base primers... |
| Tipo: Journal article |
Palavras-chave: Genetic resources; RAPD; Tigridia pavonia; Variety discrimination. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000400010 |
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| Avila,Teresa; Izquierdo,Juan. |
| The Bolivia study is part of an ongoing multiple case study organized by the FAO's Regional Office for Latin America and the Caribbean as part of the activities of the Technical Cooperation Network on Agricultural Biotechnology (REDBIO/FAO). The basic information was obtained through a survey and/or direct interview to a significant number of experts from Bolivian institutions involving management, regulation, research, innovation, application and education of agricultural biotechnology. At national level, the most relevant applied agri-biotechnologies are presently in vitro plant culture, genomics, molecular genetics, assisted reproduction techniques in animals, and techniques supporting plant and animal disease diagnosis. They have been developed and... |
| Tipo: Journal article |
Palavras-chave: Andean crops; Appropriate biotechnology; Biotechnology administration; Bolivia; Genetic resources; Policy; REDBIO/FAO; Regulations; Technical cooperation network on plant biotechnology. |
| Ano: 2006 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582006000100002 |
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| Abreu,Flávia Barbosa; Silva,Derly José Henriques da; Marim,Bruno Garcia; Carneiro,Pedro Crescêncio Souza; Juhasz,Ana Cristina Pinto; De Luca,Carina A.C.; Valente,Reginaldo Fialho; Guimarães,Marcelo Almeida. |
| This study presents the minimum number and the best combination of tomato harvests needed to compare tomato accessions from germplasm banks. Number and weight of fruit in tomato plants are important as auxiliary traits in the evaluation of germplasm banks and should be studied simultaneously with other desirable characteristics such as pest and disease resistance, improved flavor and early production. Brazilian tomato breeding programs should consider not only the number of fruit but also fruit size because Brazilian consumers value fruit that are homogeneous, large and heavy. Our experiment was a randomized block design with three replicates of 32 tomato accessions from the Vegetable Germplasm Bank (Banco de Germoplasma de Hortaliças) at the Federal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lycopersicon esculentum; Genetic resources; Principal components; Repeatability coefficient; Determination coefficient. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572006000100021 |
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| Cuyeu,Romina; Rosso,Beatriz; Pagano,Elba; Soto,Gabriela; Fox,Romina; Ayub,Nicolás Daniel. |
| Festuca arundinacea Schreb., commonly known as tall fescue, is a major forage crop in temperate regions. Recently, a molecular analysis of different accessions of a world germplasm collection of tall fescue has demonstrated that it contains different species from the genus Festuca and allowed their rapid classification into the three major morphotypes (Continental, Mediterranean and Rhizomatous). In this study, we explored the genetic diversity of 161 accessions of Festuca species from 29 countries, including 28 accessions of INTA (Argentina), by analyzing 15 polymorphic SSR markers by capillary electrophoresis. These molecular markers allowed us to detect a total of 214 alleles. The number of alleles per locus varied between 5 and 24, and the values of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: SSR markers; Genetic diversity; Flow cytometry; Tall fescue; Genetic resources. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000200014 |
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| Yamanaka,Naoki; Sato,Hiroyuki; Yang,Zhenyu; Xu,Dong He; Catelli,Lizandra Lucy; Binneck,Eliseu; Arias,Carlos Alberto Arrabal; Abdelnoor,Ricardo Vilela; Nepomuceno,Alexandre Lima. |
| An understanding of the relationship of geographically different soybean gene pools, based on selectively neutral DNA markers would be useful for the selection of divergent parental cultivars for use in breeding. We assessed the relationships of 194 Chinese, 59 Japanese, and 19 Brazilian soybean cultivars (n = 272) using 12 simple sequence repeat (SSR) markers. Quantification Theory III and clustering analyses showed that the Chinese and Japanese cultivars were genetically quite distant to each other but not independent, while Brazilian cultivars were distantly related to the cultivars from the other two countries and formed a cluster that was distant from the other two gene pool clusters. Our results indicated that the Brazilian soybean gene pool is... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: DNA marker; Genetic relationship; Genetic resources; Glycine max. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000100016 |
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| Pires,Luanna Chácara; Machado,Théa M. Medeiros; Araújo,Adriana Mello; Olson,Timothy A.; Silva,João Batista Lopes da; Torres,Robledo Almeida; Costa,Márcio da Silva. |
| The aim was to analyze variation in 12 Brazilian and Moroccan goat populations, and, through principal component analysis (PCA), check the importance of body measures and their indices as a means of distinguishing among individuals and populations. The biometric measurements were wither height (WH), brisket height (BH) and ear length (EL). Thorax depth (WH-BH) and the three indices, TD/WH, EL/TD and EL/WH, were also calculated. Of the seven components extracted, the first three principal components were sufficient to explain 99.5% of the total variance of the data. Graphical dispersion by genetic groups revealed that European dairy breeds clustered together. The Moroccan breeds were separated into two groups, one comprising the Drâa and the other the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biometrics; Genetic resources; Goat breeds; Morphometrics; Population characterization. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000500011 |
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| Montenegro,M; Llambí,S; Castro,G; Barlocco,N; Vadell,A; Landi,V; Delgado,JV; Martínez,A. |
| In this study, we genetically characterized the Uruguayan pig breed Pampa Rocha. Genetic variability was assessed by analyzing a panel of 25 microsatellite markers from a sample of 39 individuals. Pampa Rocha pigs showed high genetic variability with observed and expected heterozygosities of 0.583 and 0.603, respectively. The mean number of alleles was 5.72. Twenty-four markers were polymorphic, with 95.8% of them in Hardy Weinberg equilibrium. The level of endogamy was low (FIS = 0.0475). A factorial analysis of correspondence was used to assess the genetic differences between Pampa Rocha and other pig breeds; genetic distances were calculated, and a tree was designed to reflect the distance matrix. Individuals were also allocated into clusters. This... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Genetic resources; Microsatellites. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000100048 |
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| Borges,Rita Mércia E; Resende,Geraldo M de; Lima,Maria Auxiliadora C de; Dias,Rita de Cássia S; Lubarino,Paloma Clementino da C; Oliveira,Regina Célia da S; Gonçalves,Nadja Pollyanna da S. |
| The aim of this study was to estimate the phenotypic divergence among fourteen pumpkins accessions of the cucurbits Germplasm Active Bank of Embrapa Semiárido, in order to support breeding program to these species. Nine morphoagronomic descriptors were analyzed by the principal components and by UPGMA techniques. In the analysis of principal components, the formation of three contrasting clusters was observed, each one composed of two accessions. There occurred also the formation of one core group composed of five accessions, being the accessions called 683 and 684 collected in Bahia and the other in Maranhão. The most divergent accessions were 620, 624 and 748. The variables of the greatest contribution to the genetic divergence were diameter, weight and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cucurbita moschata; Morphological descriptors; Genetic resources; Germplasm characterization; Fruit descriptors. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362011000400003 |
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| Gaia,José Maria D; Mota,Milton Guilherme da C; Conceição,Carmen Célia C da; Maia,José Guilherme S. |
| Spiked pepper presents a high yield of essential oil with useful biological properties for human health and agriculture. In order to evaluate the morphoagronomic variability and, afterwards, to select genotypes for plant breeding and cultivation, thirteen clones were propagated. Thus, spiked pepper cuttings were rooted under greenhouse, transferred to a nursery and, afterwards, planted at the experimental area. The evaluations were carried out in two harvest seasons. The evaluated morphoagronomic traits were number of leaves per branch, leaf length, leaf width, diameter of the oldest branch, plant height, number of orthotropic branches, number of plagiotropic branches, internode length, fresh and dry matter, yield of essential oil and dillapiole content.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Piper aduncum L.; Genetic resources; Conservation of germplasm; Morphoagronomic traits; Genetic breeding. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362010000400007 |
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| Ferreira,Mariane G; Almeida,Gabriella Q de; Pessoa,Herika P; Dariva,Françoise D; Dias,Felipe de O; Nick,Carlos. |
| ABSTRACT This study was performed to introduce the allele Bush of commercial cultivars with a bush growth habit into Cucurbita moschata accessions and select the best crossings for production potential and standard fruit shape “Menina Brasileira” through general combining ability (GCA) and specific combining ability (SCA). To determine GCA and SCA, a partial diallel analysis was performed. The parental group (group I) consisted of two cultivars containing the dwarfism bush gene, and the second group (Group II), formed by five accessions of UFV Vegetable Germplasm Bank, with high production potential and fruit shape “Menina Brasileira”. We evaluated: productivity (PROD), fruit shape (FORM), growth rate until the 50th day after transplanting (CRESC), and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cucurbita moschata; Plant architecture; “bush type”; Genetic resources; Vegetable breeding. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362019000100035 |
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| Gaia,José Maria D; Mota,Milton Guilherme da C; Conceição,Carmen Célia C da; Maia,José Guilherme S. |
| Spiked pepper (Piper aduncum L.) is an aromatic plant species with high essential oil production. It is a species that occurs abundantly in the Brazilian Amazon. Its essential oil has exploitable biological properties in the human health and agriculture. Aiming to study its germplasm toward future use in genetic breeding programs, collecting was carried out (inflorescences, cuttings, leaves and thin branches) in ten provenances from the Brazilian Amazon. Twelve morphoagronomic traits were determined to take the data: number of leaves by branch, length of leaf, width of the leaf, circumference of the older branch, height of the plant, number of orthotropic branches, number of plageotropic branches, length of the internodes, number of spikes per branches,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Piper aduncum L.; Genetic resources; Conservation of germplasm; Morphoagronomic traits; Genetic breeding. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362010000200004 |
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| ALBRECHT, J. C.; SILVA, M. S. e; SCHEEREN, P. L.; ANDRADE, J. M. V. de; TRINDADE, M. da G.; SOARES SOBRINHO, J.; SOUSA, C. N. A. de; BRAZ, A. J. B. P.; RIBEIRO JÚNIOR, W. Q.; SOUSA, M. A. de; FRONZA, V.; YAMANAKA, C. H.. |
| bitstream/CPAC-2010/30296/1/doc-228.pdf |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Melhoramento genético; Wheats.; Recurso Genético; Variedade.; Trigo; Genetic resources; Varieties.. |
| Ano: 2008 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/571941 |
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| Registros recuperados: 117 | |
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