Littérature MRAC publiée ailleurs
Détails
Sonet, G., De Smet, Y., Tang, M., Virgilio, M., Young, AD., Skevington, JH., Mengual, X., Backeljau, T., Liu, S., Zhou, X., De Meyer, M. & Jordaens, K. 2019. ‘First mitochondrial genomes of five hoverfly species of the genus Eristalinus (Diptera: Syrphidae)’. Genome. URL: http://www.nrcresearchpress.com/doi/10.1139/gen-2019-0009 I.F. 1.892.
Article dans une revue scientifique / Article dans un périodique
Four subfamilies are recognized in the family Syrphidae (Insecta: Diptera), also known as hoverflies or flower flies: Microdontinae, Syrphinae, Eristalinae and Pipizinae (Mengual et al. 2015; Young et al. 2016). Yet, the subfamily Eristalinae appears paraphyletic in relation with the three other subfamilies (Hippa and Ståhls 2005; Skevington and Yeates 2000; Ståhls et al. 2003). A widespread genus within the Eristalinae is Eristalinus Rondani, 1845. It is naturally present in all biogeographic regions except in the Neotropics, although a few records indicate that it was introduced in Chile (Thompson 1999). Species of this genus are large hoverflies (4–16 mm), and most of them are imperfect bee mimics with punctate (spotted) and/or fasciate (striped) eyes. They occur in a wide variety of habitats including open grasslands, shrub lands, river valleys, forest margins, wetlands, river banks, lake shores and even urban areas. Larvae can be found in small temporary waterbodies. The genus comprises approximately 75 species worldwide, of which 54 occur in the Afrotropical Region. It is divided into five subgenera: Eristalinus Rondani, 1845 (including Lathyrophthalmus Mik, 1897), Eristalodes Mik, 1897, Helophilina Becker, 1923, Merodonoides Curran, 1931 and Oreristalis Séguy, 1951. So far, the phylogenetic relationships among the Eristalinus species of the Afrotropical Region remain unknown. A preliminary phylogenetic study on Eristalinus species from the Afrotropics using thre mitochondrial (cytochrome c oxidase subunit 1, cytochrome b and 12S rRNA) and two nuclear (18S and 28S rRNA) gene fragments showed low support for many nodes in the phylogenetic trees (De Smet et al. unpublished results) prompting the usage of additional DNA markers to resolve species and subgenus relationships within Eristalinus. Phylogenetic studies using whole mitochondrial genomes (mitogenomes) have shown the potential to tackle phylogenetic issues at varying taxonomic levels (e.g. Cameron 2013; Cameron et al. 2007, 2009; Ma et al. 2012; Nelson et al. 2012; Yong et al. 2015). The objectives of the current study are to assemble the mitogenomes of five Afrotropical Eristalinus species (belonging to two subgenera), infer their phylogenetic relationships and measure the informativeness of each mitochondrial protein coding gene (PCG) and rRNA gene for the resolution of phylogenetic relationships within Eristalinus