10 research outputs found

    The molecular epidemiology of human immunodeficiency virus type 1 in six cities in Britain and Ireland

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    The authors sequenced the p17 coding regions of the gag gene from 211 patients infected either through injecting drug use (IDU) or by sexual intercourse between men from six cities in Scotland, N. England, N. Ireland, and the Republic of Ireland. All sequences were of subtype 5. Phylogenetic analysis revealed substantial heterogeneity in the sequences from homosexual men. In contrast, sequence from over 80% of IDUs formed a relatively tight cluster, distinct both from those of published isolates and of the gay men. There was no large-scale clustering of sequences by city in either risk group, although a number of close associations between pairs of individuals were observed. From the known date of the HIV-1 epidemic among IDUs in Edinburgh, the rate of sequence divergence at synonymous sites is estimated to be about 0.8%. On this basis it has been estimated that the date of divergence of the sequences among homosexual men to be about 1975, which may correspond to the origin of the B subtype epidemic

    Nota corta. EvaluaciĂłn de genotipos de sorgo para resistencia al barrenador del tallo Chilo partellus (Swinhoe)

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    Twenty sweet sorghum and three grain sorghum -Sorghum bicolor (L.) Moench- genotypes were tested for resistance to the damage caused by the sorghum stem borer Chilo partellus (Swinhoe) under infested field conditions in the Dharwad region of northern Karnataka, India. Five different types of damage were taken into account: leaf scraping, dead heart, pinhole, peduncle and stem tunnelling damage. Genotype SSV-7073 was found to be the most resistant with respect to all the damage types studied. In addition, the genotypes Nandyal, SSV-53, SSV-6928, HES-4 and IS-2312 showed little peduncle and stem tunnelling damage. These genotypes might be considered potentially resistant varieties and may serve as material of interest in sorghum improvement programmes.En la regiĂłn de Dharwad, en el norte de Karnataka (India) se evaluaron, en condiciones de campo, 20 genotipos de sorgo dulce y tres de sorgo de grano (Sorghum bicolor (L.) Moench), para estudiar los daños causados por el barrenador del tallo, Chilo partellus (Swinhoe). Se consideraron cinco clases de daños: hojas deshilachadas, hojas agujereadas, mĂ©dula muerta y excavaciĂłn de tĂșneles en tallos y pedĂșnculos. El genotipo SSV-7073 fue el mĂĄs prometedor y resistente para el conjunto de daños, y los genotipos Nandyal, SSV-53, SSV-6928, HES-4 e IS-2312 mostraron pocas excavaciones de tĂșneles en tallos y pedĂșnculos. De aquĂ­ que estos genotipos pueden ser considerados como variedades potencialmente resistentes, y ser incorporados en programas de mejora del sorgo

    Screening of sorghum genotypes for resistance to damage caused by the stem borer "Chilo partellus" (Swinhoe)

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    Erratum: International Nosocomial Infection Control Consortium report, data summary of 43 countries for 2007-2012. Device-associated module (American Journal of Infection Control (2014) 42 (942-956))

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    Finite element analyses of sandwich structures: a bibliography (1980–2001)

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