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DNA probes for distinguishing Psychodopygus wellcomei from Psychodopygus complexus (Diptera: Psychodidae)

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1991
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DNA probes for distinguishing Psychodopygus wellcomei from Psychodopygus complexus (Diptera: Psychodidae).pdf (4.376xmlui.dri2xhtml.METS-1.0.size-megabytes)
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http://patua.iec.gov.br/handle/iec/2580
xmlui.dri2xhtml.METS-1.0.item-author
Ready, Paul D
Lainson, Ralph
Shaw, Jeffrey Jon
Souza, Adelson Alcimar Almeida de
xmlui.dri2xhtml.METS-1.0.item-abstract
Genomic DNA fragments from males of Psychodopygus wellcomei were isolated and shown to be useful as sensitive diagnostic probes for positively separating individuais of this species from those of Ps. complexus. These two members of the Ps. squamiventris series are found sympatrically in foci of cutaneous leishmaniasis in the hill forests of southern Pará State. Of the two species, only Ps. wellcomei is thought to be an important vector of Leishmania braziliensis sensu stricto, but this is based on circumstantial evidence because of the difficulties of identifying female sandflies within the series. The diagnostic probes were isolated from a library ofPs. wellcomei built by ligating short fragments of Sau 3A-restricted, genomic DNA into the plasmid vector pUC 18. Differential screening of 1316 library clones with total genomic DNA of Ps. wellcomei and Ps. complexus identified 5 recombinants, with cross-hybridizing inserts of repetitive DNA, that showed strong specificity for Ps. wellcomei. As little as 0.4% of the DNA extracted from an individual sandfly (= ca. 0.5 nanogramsj was specifically detected. The diagnostic probes were used to identify as Ps. wellcomei a wild-caught female sandfly found infected with L. braziliensis s. s., providing only the second positive association between these two species
xmlui.dri2xhtml.METS-1.0.item-citation
READY, Paul D. et al. DNA probes for distinguishing Psychodopygus wellcomei from Psychodopygus complexus (Diptera: Psychodidae). Memórias do Instituto Oswaldo Cruz, v. 86, n. 1, p. 41-49, jan.- maio 1991.
xmlui.dri2xhtml.METS-1.0.item-decsPrimary
Leishmaniose
DNA
Hibridização de Ácido Nucleico
Culicidae
Psychodopygus wellcomei
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Acesso Aberto
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  • SAPAR - Artigos Científicos

Instituto Evandro Chagas - SVS - MS - 2007-2018 Rodovia BR316 km 7 sn - Levilandia - 67030-000 - Ananindeua - Para - Brasil.
Licença Creative CommonsEste trabalho está licenciado com uma Licença Creative Commons - Atribuição-NãoComercial 4.0 Internacional
Tel: (55 91) 3214-2191
Email: biblioteca@iec.gov.br / clariceneta@iec.gov.br
 

 

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Instituto Evandro Chagas - SVS - MS - 2007-2018 Rodovia BR316 km 7 sn - Levilandia - 67030-000 - Ananindeua - Para - Brasil.
Licença Creative CommonsEste trabalho está licenciado com uma Licença Creative Commons - Atribuição-NãoComercial 4.0 Internacional
Tel: (55 91) 3214-2191
Email: biblioteca@iec.gov.br / clariceneta@iec.gov.br