Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 496065
Title An unrecognized species of the Culicoides obsoletus complex feeding on livestock in the Netherlands
Author(s) Meiswinkel, R.; Bree, F.M. de; Vries, Ruth de; Elbers, A.R.W.
Source Veterinary Parasitology 207 (2015)3-4. - ISSN 0304-4017 - p. 324 - 328.
Department(s) CVI Infection Biology
CVI Bacteriology and Epidemiology
Publication type Refereed Article in a scientific journal
Publication year 2015
Abstract In studies on Culicoides attacking livestock in the Netherlands, we chanced upon a species of the Obsoletus complex that we do not recognize, but whose dark wing pattern is distinctive. Nine cytochrome c oxidase (CO1) sequences of our so-called ‘dark obsoletus’ support its status as a separate species, the sequences differing significantly from those representing Culicoides obsoletus (Meigen) (90–91% homology) and Culicoides scoticus Downes & Kettle (87–88% homology). In the last decade, several research groups in Europe have encountered ‘mystery species’ related to C. obsoletus and in some instances have made their sequences for various genetic loci available in GenBank. These include a CO1 series submitted from Sweden in 2012 (annotated as ‘obsoletus 01, 02, or 03 MA-2012′) and of which some share a 99% identity with our sequences for ‘dark obsoletus’. Without doubt, the series from the Netherlands, along with a portion of the Swedish submissions, together represent a single species (‘dark obsoletus’). Whether this species is referable to the Russian Culicoides gornostaevae Mirzaeva recorded recently from Norway, Sweden and Poland, and based solely upon the external morphology of the male, is not clear. The presence in Western Europe of multiple undescribed species related to C. obsoletus means that the taxonomy of this important vector complex is not fully resolved; consequently, we know little about these cryptic species with regard to seasonality, geographic range and host preference. This is undesirable given that Culicoides-borne arboviruses causing disease in livestock are moving more regularly out of the tropics and spreading north into temperate latitudes.
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