Wing vein shape signal in Culicoides oxystoma (Schultzei group) in Nigeria – Tool for discrimination (diptera: Ceratopogonidae) using geometric approach

Oke, P. O.; Samuel, O.M.; Oke-Egbodo, B. E.; Adejinmi, J.O.; Oluwayelu, Daniel Oladimeji

doi:10.1016/j.jcz.2018.08.003

Cited by 3 publications

(1 citation statement)

References 20 publications

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“…This technique was used to study the intra specific variations in Glossinidae (30), Muscidae (31), Psychodiae (28,32,33), Reduviidae (34) and Tabanidae (35,36) and to show inter specific variations in Muscidae (37). The landmark-based WGM analysis of Culicoides wings has proven to be a valuable tool for interspecific discrimination (38)(39)(40)(41)(42), C. circumscriptus intersexes specimens (43), sexual dimorphism (44) and geographic variations (45).…”

Section: Introductionmentioning

confidence: 99%

Wing morphology variations in Culicoides circumscriptus from France

Hadj-Henni

Djerada²,

Millot

et al. 2023

Front. Vet. Sci.

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The biting midge Culicoides circumscriptus Kieffer, 1918 is a European widespread vector of avian malaria throughout the continent and is a possible vector of Akabane virus and Bluetongue virus. This species populates a wide range of environments in contrasting ecological settings often exposed to strong seasonal fluctuations. The main goals of this study were to investigate C. circumscriptus phenotypic variation at three departments in France (Corsica Island, Moselle and Var) and to determine if its phenotypes vary with the environment. Culicoides circumscriptus wing phenotypes were analyzed using a geometric morphometric approach based on anatomical landmarks and outlines of the wing. Dendogram trees based on landmarks and the outlines-2 set (cell m4) showed similar topologies and separated populations of C. circumscriptus. In contrast, another set of outlines-1 (covering the r-m cross vein, M, radiale and arculus) presented a different hierarchical clustering tree. The phenotypic variation observed in C. circumscriptus indicated that these populations are exposed to environmental and ecological pressures. Our results suggest the presence of phenotypic plasticity in this species.

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