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Integrative taxonomy to investigate species boundaries within Culicoides (Diptera: Ceratopogonidae): a case study using subgenus Avaritia from Australasia and Eastern Asia

Gopurenko, David, Bellis, Glenn A., Yanase, Tohru, Wardhana, April H., Thepparat, Arunrat, Wang, Jinglin, Li, Huachun, Cai, Ducheng and Mitchell, Andrew (2015). Integrative taxonomy to investigate species boundaries within Culicoides (Diptera: Ceratopogonidae): a case study using subgenus Avaritia from Australasia and Eastern Asia. Veterinaria Italiana,51(4):345-378.

Document type: Journal Article
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IRMA ID 84376995xPUB301
Title Integrative taxonomy to investigate species boundaries within Culicoides (Diptera: Ceratopogonidae): a case study using subgenus Avaritia from Australasia and Eastern Asia
Author Gopurenko, David
Bellis, Glenn A.
Yanase, Tohru
Wardhana, April H.
Thepparat, Arunrat
Wang, Jinglin
Li, Huachun
Cai, Ducheng
Mitchell, Andrew
Journal Name Veterinaria Italiana
Publication Date 2015
Volume Number 51
Issue Number 4
ISSN 0505-401X   (check CDU catalogue  open catalogue search in new window)
eISSN 1828-1427
Scopus ID 2-s2.0-84953216753
Start Page 345
End Page 378
Total Pages 34
Place of Publication Teramo, Italy
Publisher Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise
HERDC Category C1 - Journal Article (DIISR)
Abstract In this study, species boundaries were examined for 15 described and 2 undescribed species within the economically important Culicoides subg. Avaritia Fox from Australasia and Eastern Asia. We used an integrative taxonomic approach incorporating DNA barcoding, nuclear gene sequencing, and retrospective morphological analyses. Some arbovirus vector species such as Culicoides fulvus Sen and Das Gupta and Culicoides wadai Kitaoka were genetically and morphologically uniform across sampled distributions, but others including Culicoides actoni Smith and Culicoides brevipalpis Delfinado contained 2 or more genetically independent populations of 'cryptic species' that in some cases were sympatric. Some of these 'cryptic species' exhibited consistent morphological differences, while differences are yet to be found for others species. Additionally, an undescribed species, C. Avaritia sp. No. 3, was found to be synonymous with C. fulvus. These results refine our understanding of the distribution of individual species of C. subg. Avaritia and demonstrate that species descriptions and distribution records need revision for part of the Culicoides fauna. Furthermore, because vector competence studies for most of these species are based entirely on Australian populations, the competence of the putative cryptic species identified elsewhere will require independent assessment. Finally, integrative taxonomic assessment requires genetic and morphological assessment of material from the type localities in order to clarify the status and distribution of species, especially for clades containing cryptic species. International collaboration is needed to facilitate this research.
Keywords Arbovirus vectors
Barcode Index Numbers
CAD
COI
DNA barcoding
DOI http://dx.doi.org/10.12834/VetIt.515.2463.2   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
 
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