Please use this identifier to cite or link to this item:
|Title:||Genetic structure of Culex erraticus populations across the Americas||Authors:||Mendenhall, I.H.
|Issue Date:||May-2012||Citation:||Mendenhall, I.H., Bahl, J., Blum, M.J., Wesson, D.M. (2012-05). Genetic structure of Culex erraticus populations across the Americas. Journal of Medical Entomology 49 (3) : 522-534. ScholarBank@NUS Repository. https://doi.org/10.1603/ME11197||Abstract:||Culex erraticus (Dyar & Knab) is a potential competent vector for several arboviruses such as Eastern and Venezuelan equine encephalitis viruses and West Nile virus. It therefore may play a role in the maintenance and spread of viral populations in areas of concern, including the United States where it occurs in >33 states. However, little information is available on potential barriers to movement across the species' distribution. Here, we analyze genetic variation among Cx. erraticus collected from Colombia, Guatemala, and nine locations in the United States to better understand population structure and connectivity. Comparative sequence analysis of the second internal transcribed spacer and mitochondrial NADH dehydrogenase genes identified two major lineages of sampled populations. One lineage represented the central and eastern United States, whereas the other corresponded to Central America, South America, and the western United States. Hierarchical analysis of genetic variation provided further evidence of regional population structure, although the majority of genetic variation was found to reside within populations, suggestive of large population sizes. Although significant physical barriers such as the Chihuahuan Desert probably constrain the spread of Cx. erraticus, large population sizes and connectivity within regions remain important risk factors that probably contribute to the movement of arboviruses within and between these regions. © 2012 Entomological Society of America.||Source Title:||Journal of Medical Entomology||URI:||http://scholarbank.nus.edu.sg/handle/10635/128618||ISSN:||00222585||DOI:||10.1603/ME11197|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Mar 26, 2020
WEB OF SCIENCETM
checked on Mar 26, 2020
checked on Mar 27, 2020
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.