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Registros recuperados: 7
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A high density genetic map of maritime pine based on AFLPs Inra
Chagné, D.; Lalanne, C.; Madur, D.; Kumar, S.; Frigério, J.M.; Krier, C.; Decroocq, S.; Savouré, A.; Bou-Dagher-Kharrat, M.; Bertocchi, E.; Brach, J.; Plomion, C..
Tipo: Conference Paper Palavras-chave: AFLP; DOUBLE PSEUDO-TESTCROSS; TAILLE PHYSIQUE; CARTE GENETIQUE.
Ano: 2002 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB0300011664096195&uri=/notices/prodinra1/2009/12/
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Assessment of genetic diversity in Indian ash gourd (Benincasa hispida) accessions using RAPD markers National Institute of Agronomic Research
Pandey, S.; Kumar, S.; Rai, M.; Mishra, U.; Singh, M..
Thirty four (9 cultivars and 25 germplasm) genotypes of ash gourd (Benincasa hispida) have been studied to assess the molecular diversity using RAPD markers. A total of 25 RAPD markers produced 163 amplicons, of which 73 % were found polymorphic indicating a high degree of diversity. RAPD based dendrogram showed dissimilarity values from 0.64 to 0.943 also suggesting that the accessions represent a genetically diverse population. The accession IVAG-223 was clearly separated from rest of the accessions based on the RAPD primers. The dendogram revealed that the accessions from northeastern regions of India are different from the accessions of other parts of India, as they cluster together. On the basis of clustering, it was indicated that cultivars had a...
Tipo: Conference Paper Palavras-chave: Genetic resources; Genetic diversity; Dendrogram; PCR amplification; Germplasm; Molecular diversity.
Ano: 2008 URL: http://hdl.handle.net/2174/193
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BABESIOSIS IN DONKEYS : AN UPDATE OAK
Kumar, S.; Dwivedi, S. K.; Sugimoto, Chihiro.
Palavras-chave: Babesiosis; Babesia caballi; Babesia equi; Donkey.
Ano: 2002 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/652
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Cucurbit research in India: a retrospect National Institute of Agronomic Research
Rai, M.; Pandey, S.; Kumar, S..
Cucurbits belong to family Cucurbitaceae, includes about 118 genera and 825 species. In India, a number of major and minor cucurbits are cultivated, which share about 5.6 % of the total vegetable production. They are consumed in various forms i.e., salad (cucumber, gherkins, long melon), sweet (ash gourd, pointed gourd), pickles (gherkins), and deserts (melons). In India, several research institutes and universities have utilized a number of cultivated and wild species to develop improved varieties and parental lines. About 112 open pollinated varieties of several cucurbits have been recommended for cultivation at national and state levels. Among these, 48 improved varieties in 8 major cucurbits have been identified and recommended through All India...
Tipo: Poster Palavras-chave: Cucurbitaceae; Cucurbitaceous vegetables; Germplasm; Hybrid; Production; Genetic resources; Biotic resistance.
Ano: 2008 URL: http://hdl.handle.net/2174/223
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On economic-cost minimization versus biological-invasion damage control Frontis
DeAngelo, G.; Batabyal, A.A.; Kumar, S..
Recently, Batabyal et al. (2005) have used a queuing model to show that there is a tension between economic-cost minimization and inspection stringency in invasive-species management in the following sense: greater (lesser) inspection stringency with a larger (smaller) number of inspectors leads to higher (lower) economic costs. We use a more general queuing model to investigate whether there is, in fact, a tension between cost minimization and inspection stringency. Our theoretical analysis shows that there is no definite answer to this question. Therefore, we use numerical methods, and our numerical analysis leads to two conclusions. For many values of the model parameters that delineate the strictness of inspections, there is a tension between cost...
Tipo: Conference proceedings
Ano: 2007 URL: http://library.wur.nl/ojs/index.php/frontis/article/view/1279
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Sex expression-associated RAPD markers in pointed gourd (Trichosanthes dioica) National Institute of Agronomic Research
Kumar, S.; Singh, B.D.; Sinha, D.P.; Rai, M..
DNA samples were extracted separately from 10 male and 10 female sexual progeny of pointed gourd (Trichosanthes dioica), and 3 plants from a parthenocarpic clone (IIVRPG-105); the DNAs were bulked by sex type. Forty-one random decamer primers were screened with the three bulks in order to identify markers associated with sex expression. A total of 509 amplification products were obtained of which six were associated with sex expression. These six markers were then tested with individual plant DNA samples, and three sex-associated RAPD markers were identified. A 1000 bp amplification product from the primer OPC05 was found to be present in all the male and absent from all the female and parthenocarpic plants. In contrast, a 400 bp amplification product from...
Tipo: Poster Palavras-chave: Trichosanthes dioica; RAPD; Sex expression; Sex-associated; Parthenocarpy.
Ano: 2008 URL: http://hdl.handle.net/2174/262
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Testing for unequal paternal contributions using nuclear and chloroplast SSR markers in polycross families of radiata pine Inra
Kumar, S.; Gerber, S.; Richardson, T.E.; Gea, L..
The lack of male pedigree control is the major limitation of an otherwise very useful and cost effective mating design, namely, the polycross. This study was conducted to investigate the relative contribution of different pollen parents to the sound-seeds stage, and also in a field progeny trial. Pollen from 15 radiata pine (Pinus radiata D. Don) parents was mixed in equal volume and applied to the same 15 parents, potentially allowing selfing. Samples of 8-year-old offspring were genotyped from five polycross families, and available seed from three of these five families was tested for unequal paternal contributions. The total paternal exclusion probability of five chloroplast markers and four microsatellite markers in our study was 99.1%. Overall, 81% of...
Tipo: Journal Article Palavras-chave: SUCCES REPRODUCTEUR; PEDIGREE MOLECULAR MARKERS; POLYCROSS; PEDIGREE RECONSTRUCTION; REPRODUCTIVE SUCCESS; SELFING; GCA.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20077ca65b98&uri=/notices/prodinra1/2007/10/
Registros recuperados: 7
Primeira ... 1 ... Última
 

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