Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2005-6-16
pubmed:abstractText
Species identification of anopheline mosquitoes (Diptera: Culicidae) can be problematic because many of them belong to complexes of morphologically similar species, often with contrasted ecology, behaviour and vectorial importance. The application of DNA-based diagnostics has proved to be useful for distinguishing between such species. We determined ribosomal DNA sequences of the second internal transcribed spacer (ITS2) from samples of 16 species of Anopheles captured in the Amazon Basin, Brazil. Length of the ITS2 varied from 323 to 410 base pairs, with GC content ranging from 50.7% to 66.5% and sequence identity from 25% to 99% between species. Maximum-likelihood paup analysis separated two distinct groups of species conforming with the recognized subgenera Anopheles (represented by eiseni, mattogrossensis, mediopunctatus and peryassui) and Nyssorhynchus (represented by 12 spp.). For the latter group, the neighbour-joining tree generated from rDNA sequence ITS2 relationships is compatible with the morphological taxonomic key established for these Amazonian species: albitarsis, aquasalis, benarrochi, braziliensis, darlingi, deaneorum, dunhami, evansae, nuneztovari, oswaldoi, rangeli and triannulatus. These ITS2 sequence data proved to be a useful tool for species identification and, potentially, to solve taxonomic problems.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0269-283X
pubmed:author
pubmed:issnType
Print
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
208-18
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Amazonian malaria vector anopheline relationships interpreted from ITS2 rDNA sequences.
pubmed:affiliation
Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de Sao Paulo, Sao Paulo, Brazil.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't