Differentiation of Aedes triseriatus (Say) from Aedes hendersoni Cockerell (Diptera: Culicidae) by restriction fragment length polymorphisms of amplified ribosomal DNA.
- 1 February 2000
- journal article
- Published by American Society of Tropical Medicine and Hygiene in The American Journal of Tropical Medicine and Hygiene
- Vol. 62 (2) , 193-199
- https://doi.org/10.4269/ajtmh.2000.62.193
Abstract
Aedes triseriatus is the primary vector of LaCrosse (LAC) virus, which can cause encephalitis, especially in young children. Aedes hendersoni, a sibling species of Ae. triseriatus, has a salivary gland barrier to LAC virus and, therefore, is not considered a vector of this virus. Adults of Ae. triseriatus are morphologically indistinguishable from those of Ae. hendersoni, and the two species are sympatric in the eastern United States. A definitive method of identifying field specimens is an important part of any disease surveillance program, particularly in the case of LAC virus. This study identifies restriction enzymes that produce species-specific restriction fragment length polymorphisms (RFLPs) from amplified ribosomal (r) DNA. In addition, sequences of the internal transcribed spacers 1 and 2 and the 5.8S regions of the rDNA were used to confirm the RFLP patterns. This study is the first to compare nucleotide sequences from Ae. triseriatus and Ae. hendersoni.Keywords
This publication has 0 references indexed in Scilit: