An integrative approach in the assessment of species delimitation and structure of the Merodon nanus species group (Diptera: Syrphidae)

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Tubic , N K , Stahls , G , Acanski , J , Djan , M , Vidakovic , D O , Hayat , R , Khaghaninia , S , Vujic , A & Radenkovic , S 2018 , ' An integrative approach in the assessment of species delimitation and structure of the Merodon nanus species group (Diptera: Syrphidae) ' , Organisms Diversity & Evolution , vol. 18 , no. 4 , pp. 479-497 . https://doi.org/10.1007/s13127-018-0381-7

Title: An integrative approach in the assessment of species delimitation and structure of the Merodon nanus species group (Diptera: Syrphidae)
Author: Tubic, Natasa Kocis; Stahls, Gunilla; Acanski, Jelena; Djan, Mihajla; Vidakovic, Dragana Obreht; Hayat, Rüstem; Khaghaninia, Samad; Vujic, Ante; Radenkovic, Snezana
Contributor: University of Helsinki, Zoology
Date: 2018-12
Language: eng
Number of pages: 19
Belongs to series: Organisms Diversity & Evolution
ISSN: 1439-6092
URI: http://hdl.handle.net/10138/307878
Abstract: The Merodon nanus group (Diptera, Syrphidae) is a small group of closely related species with high morphological similarity. Until now, based on morphological characters, this group consisted of five species: M. nanus Sack, 1931; M. telmateia Hurkmans, 1987; M. kopensis Vuji et Hayat, 2015; M. neonanus Vuji et Taylor, 2015; and M. rasicus Vuji et Radenkovi, 2015. Here, using an integrative approach based on molecular characters (sequences of the D2-3 region of the nuclear 28S rRNA gene and the mitochondrial COI gene) and data obtained from geometric morphometry of wing shape, we distinguish all five previously morphologically defined species of the group. Additionally, we identify one species as being new to science, M. vladimiri Vuji et Koi Tubi sp. n. We emphasize the separation of this newly described species according to the sequences obtained from the slowly evolving 28S rRNA gene, which demonstrated four to five mutation positions between this species and morphologically the most similar M. neonanus species. Also, our results show a clear division of M. telmateia into at least three population groups that we designate as the subspecies: M. telmateia mediterraneus Aanski et Koi Tubi subsp. n. and M. telmateia samosensis Aanski et Koi Tubi subsp. n. exhibiting western distributions (western Anatolia and the Greek island of Samos, respectively) and the nominative subspecies M. telmateia telmateia with an eastern Anatolian distribution.
Subject: 28S rRNA gene
COI gene
Morphometric analyses
Wing
Merodon vladimiri sp n.
RUFICORNIS GROUP DIPTERA
AVIDUS COMPLEX DIPTERA
FLOWER FLIES DIPTERA
28S RIBOSOMAL-RNA
WING SHAPE
DROSOPHILA-MELANOGASTER
GENETIC-VARIATION
BALKAN PENINSULA
MORPHOLOGICAL CHARACTERS
INCLUDING DESCRIPTION
1181 Ecology, evolutionary biology
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